Ppt on power diode circuit

Group of microelectronics

the output signal: 14ns. 2) ENC (Cd=15pf) : 900e. 3) Charge sensitivity: 100mv/2fC(1MIP). 4) Power consumption: 1.7mW per channel. 5) Dynamic range: 0…10MIPs. Dummy Preamplifier Gain=1000 The charge-sensitive preamplifier. The Shaper. Principle of operation of the Bandgap Reference circuit. Diode current-to-voltage characteristics are Shockley equations. I2(V,T)=Io(T)*[exp(V *e/kT) –1/


ABCs of Power Electronic Systems

watch out for If the current reverses and the Fet is on, you have a short-circuit condition across, usually, a transformer Timing is critical The MOSFET body diode may come on Placing a Schottky diode in parallel with the body diode will not, in all cases, reduce power loss – Ramp down effect Very low Rds-on Fets require a large amount of gate drive/


Forward Type Switched Mode Power Supply

very high, the switch voltage stress reduces but allowable duty ratio of switch and the power output of the converter becomes low and diode ‘D3’ voltage rating increases. Thus an optimum design needs to be arrived at to maximize the performance of the converter. Selection of Filter Circuit Inductor and Capacitor The transformer’s secondary voltage is rectified and filtered suitably to get/


Diodes 1.

sedr42021_0322.jpg Figure 3.22 Model for the zener diode. Microelectronic Circuits - Fifth Edition Sedra/Smith sedr42021_0323a.jpg Figure 3.23 (a) Circuit for Example 3.8. (b) The circuit with the zener diode replaced with its equivalent circuit model. Microelectronic Circuits - Fifth Edition Sedra/Smith sedr42021_0324.jpg Figure 3.24 Block diagram of a dc power supply. Microelectronic Circuits - Fifth Edition Sedra/Smith sedr42021_0325a.jpg Figure 3.25/


1.3a Current Electricity Circuit Components Breithaupt pages 46 to 55 October 6 th, 2010.

conventional current flow electron flow Conventional current flow In electric circuits electric current is considered to flow out of the positive terminal of a power supply around a circuit and back to the negative terminal. This convention holds even/’s law. Thermistor Resistance decreases with increasing temperature. Obeys Ohm’s law if the temperature remains constant. Silicon diode Reverse direction (reverse-biased) Very high resistance, the current is typically below 1μA Forward direction (forward-biased/


POOR & BAD CIRCUITS With acknowledgments to

rectifiers and transformers will also smoke! With acknowledgements to The Art Of Electronics by Horowitz and Hill Zener diode regulator – practical circuits Low power /current solution. The series resistor limits the current flow into the Zener diode, so the Zener diode is protected from high current flow. Higher power/current solution. Here, the current available is the Zener current multiplied by the current gain of the/


INTRODUCTION TO BASIC POWER SUPPLIES

is a large variation in the supply voltage providing their current, think about using a constant current source rather than a series resistor. EXAMPLE OF ZENER DIODE VOLTAGE RANGE BOOSTING ZENER CIRCUITS If you need a more powerful Zener (for example, to replace a busted motor cycle regulator) then connecting a transistor as shown will do the job. The transistor can be a/


ECE 271 Electronic Circuits I

28 NJIT ECE 271 Dr. Serhiy Levkov Differential Amplifier – Signal Amplification The typical voltage transfer characteristic for a differential amplifier biased by two symmetric power supplies: A - open-circuit voltage gain, A =10, Adb =20log(10) = 20 db vID = (v+-v--) - differential input signal vID = VID + /Serhiy Levkov Small-Signal Model of BJT BJT is a three terminal device and to build similar model to a diode, we would need to use 2-port y-parameter network. Using 2-port y-parameter network, The port /


EE70 Review.

Ideal Transformers Mechanical Analog d1 d2 Impedance Transformations Semiconductor Diode Shockley Equation Load-Line Analysis of Diode Circuits Assume VSS and R are known. Find iD and vD Load-Line Analysis of Diode Circuits Ideal Diode Model The ideal diode acts as a short circuit for forward currents and as an open circuit with reverse voltage applied. iD > 0 vD < 0  diode is in the “on” state vD < 0 ID/


Technician License Course Chapter 3 Electricity, Components and Circuits Lesson Plan Module 6.

components can amplify signals? (T6B05) A. Transistor B. Variable resistor C. Electrolytic capacitor D. Multi-cell battery How is a semiconductor diode’s cathode lead usually identified? (T6B06) A. With the word “cathode” B. With a stripe C. With the letter “C”/ of these choices are correct What is the purpose of a fuse in an electrical circuit? (T0A04) A. To prevent power supply ripple from damaging a circuit B. To interrupt power in case of overload C. To limit current to prevent shocks D. All of /


PN JUNCTION DIODE (Characteristics and Applications)

. Answer: a) 4.57 mA b) I0=3.072 µA, I=74.39 mA Department of Electronics and Communication Engineering, School Of Engineering, Manipal University, jaipur Problem 3) The zener diode in a regulator circuit has a breakdown voltage of 15V and power rating of 0.5 W. if input voltage =40V, what is the minimum value of R that prevents zener/


Diode Circuits: Applications

direction, to direct current (DC), which is in only one direction, a process known as rectification. One of most widely used electronic circuit to convert AC voltage to DC voltage. Since the rectifier circuit uses diodes to convert ac voltage to dc, its also called a converter circuit. All power that supply to a modern factory is alternating current, so it is important to have/


Diodes Analog Electronics UNIT III. Diodes UNIT I Objective The student will use diodes, capacitors, regulators and LEDs through a rectifying system in.

the 1 Amp current from it without overheating the component. Otherwise the thermal protection will be activated and the regulator won´t work. Heat sink UNIT 3. Diodes ELECTRICAL CIRCUITS Voltage Regulators Calculation of the power. The power consumption of the regulator depends of the output current and the voltaje between its terminals. For example, in case of LM7812, the output voltage is 12V/


Technician License Course Chapter 3 Electricity, Components and Circuits Lesson Plan Module 6.

components can amplify signals? (T6B05) A. Transistor B. Variable resistor C. Electrolytic capacitor D. Multi-cell battery How is a semiconductor diode’s cathode lead usually identified? (T6B06) A. With the word “cathode” B. With a stripe C. With the letter “C”/ of these choices are correct What is the purpose of a fuse in an electrical circuit? (T0A04) A. To prevent power supply ripple from damaging a circuit B. To interrupt power in case of overload C. To limit current to prevent shocks D. All of /


1 CIRCUIT PROTECTION SOLUTIONS TVS Diode Array Port Selection Guide Applying the SPA™ product family to ports ESD Protection for Human Interfaces & Low.

rate, a general purpose ESD array can be selected. Solution Description: As shown at the left, a discrete diode is used on the power bus for ESD protection. For the data lines, a two- channel array can be selected. Companion Solutions: Other/resettable protection devices like PTCs be used on hot-plug ports like 1394. T+/-; R+/-: SP3003-04 silicon protection array Circuit Protection of FireWire port Return to Part Number Index Return to Port Selection Chart 22 Design Notes: Protection Application: The data/


VCE Physics Unit 3 Electronics & Photonics. 1.0 Unit Outline apply the concepts of current, voltage, power to the operation of electronic circuits comprising.

VCE Physics Unit 3 Electronics & Photonics 1.0 Unit Outline apply the concepts of current, voltage, power to the operation of electronic circuits comprising diodes, resistance, and photonic transducers including light dependent resistors (LDR), photodiodes and light emitting diodes (LED); simplify circuits comprising parallel and series resistance and unloaded voltage dividers; describe the operation of a transistor in terms of current gain and the effect of/


UNIT I Power Supplies Biasing BJT and MOSFET Outline Rectifier BJT Biasing FET Biasing.

power supply with constant output voltage. Half wave rectifier with filter-contd… We can make the output of half wave rectifier smooth by using a filter (a capacitor filter or an inductor filter) across the diode. We can also use an resistor-capacitor coupled filter (RC). Full wave rectifier Full wave rectifier-contd… In a Full Wave Rectifier circuit two diodes/Resistive biasing circuits change Ib suitably and keep Ic constant Compensation technique Temperature sensitive devices such as diodes, thermistors &/


A Presentation on Cascadable Adiabatic Logic Circuits for Low-Power applications By Divya Yashwanth.

μm with a reasonable W/L ratio of the transistors. 4. The number of transistors in CMOS and adiabatic circuit are the same, except that one diode per branch is extra in adiabatic circuit. Thus, the circuits can be easily cascaded. 5. Power saving in these circuits is because of (i) The supply voltage is a slowly varying voltage, which results in energy saving during charging/


Chapter 3 Electricity, Components and Circuits. Fundamentals of Electricity When dealing with electricity, what we are referring to is the flow of electrons.

the flow of current in only one direction. An analogy, a check valve in a water system. The Diode One use of a diode is as a rectifier in a power supply circuit to convert an AC voltage into a varying DC voltage. The Diode Light-Emitting Diode (LED). Emits light when forward-biased. The Transistor The function of the transistor is to variably control the/


1Electronics Principles & Applications Sixth Edition Chapter 4 Power Supplies ©2003 Glencoe/McGraw-Hill Charles A. Schuler.

Circuit A Circuit B Circuit C The power supply energizes the other circuits in a system. Thus, a power supply defect will affect the other circuits. 56 ac Power Supply Circuit A Circuit B Circuit C dc Most line operated supplies change ac to dc. 57 + - 0 + - 0 ac Half-wave pulsating dc The cathode makes this the positive end of the load. A series rectifier diode changes ac to dc. 58/


UNIT-1 Rectifiers & Power Supplies. Rectifier A rectifier is an electrical device that converts alternating current (AC), which periodically reverses.

output during both half- cycles, twice that for the half wave rectifier so it is 100% efficient as shown below. The full wave rectifier circuit consists of two power diodes connected to a single load resistance (R L ) with each diode taking it in turn to supply current to the load. When point A of the transformer is positive with respect to point C/


Diodes and Diode Circuits. Diode Characteristics A diode is simply a pn junction, but its applications are extensive in electronic circuits. Three important.

able to troubleshoot and repair systems that employ diodes. Diode defects include: ◦Anode-to-cathode short. ◦Anode-to-cathode open. ◦Low front-to-back ratio. ◦Out-of-tolerance parameters. 31 Troubleshooting Diode Circuits Tests that can performed on diodes to check for their operation are: ◦Voltage measurements. ◦Ohmmeter tests. ◦Diode testers. Rectifier diode defects fall into one of two classes: ◦Power supply is defective, but no visible damage/


Chapter 4 Logic Families. 2 Chapter Objectives Understand the basics of digital Integrated Circuits (IC) Understand the basics of digital Integrated Circuits.

Semiconductor (MOS) digital ICs Understand the different types of BiCMOS logic circuits Understand the different types of BiCMOS logic circuits 3 Digital Integrated Circuits Digital ICs operate with binary signals and are constructed with ICs. /-speed (SN54H/74H) High-speed (SN54H/74H) Low-power (SN54L/74L) Low-power (SN54L/74L) Schottky-diode-clamped (SN54S/74S) Schottky-diode-clamped (SN54S/74S) Low power schottky (SN54LS/74LS) Low power schottky (SN54LS/74LS) 11 Transistor-transistor Logic (Contd..) /


TE-UGM-2007 1 Jurusan Teknik Elektro UGM2007 SPECIAL DIODES Bahan Kuliah minggu ke 5 Elektronika Dasar.

diode. The exception being is that it is placed in the circuit in reverse bias and operates in reverse breakdown. Operation region TE-UGM-2007 4 Some important characteristics: Nominal Zener Voltage : 5.1V zener, 12V zener, etc. Nominal Bias Current: the I z to get the nominal V z Tolerance on zener voltage, e.g. : 12V  5%, Maximum Power/by the amount of light that strikes it. It is placed in the circuit in reverse bias. As with most diodes when in reverse bias, no current flows when in reverse bias, but /


4.1 INTRODUCTION The category of converters, which converts dc power into ac power popularly known as the inverters. The application areas for the invertors.

Parallel Inverter With Feedback Diodes Circuit Diagram Parallel Inverter With Feedback Diodes Parallel Inverter With Feedback Diodes The circuit operation can be divided into different operating modes. Thyristor T1 and T2 are the main load carrying thyristors. Inductor L and capacitor C are the commutating components. Diodes D1 and D2 are the feedback diodes. Which permit the load reactive power to be fed back to the d.c/


12-CRS-0106 REVISED 8 FEB 2013 Power your creations! Introduction to Power Supply Design IEEE Concordia Student Branch Marc-Alexandre Chan, Amit Desai.

/File:Diode_1n4001.jpg 12-CRS-0106 REVISED 8 FEB 2013 1 AC-DC Converter: Rectifier Half-wave rectifier: one diode –Passes current one way only = no more negative voltage –“Blocks” half the sine wave: less available power! 152015-11-21 Half-wave rectifier a) circuit; b) simulation plot of the output voltage. [PD] Marc-Alexandre Chan. Original. 12-CRS-0106 REVISED 8 FEB/


ENGR-43_Lec-10a_Diode-1_Physics_LoadLine.pptx 1 Bruce Mayer, PE Engineering-43: Engineering Circuit Analysis Bruce Mayer, PE Registered.

:  Resistor:  Capacitor:  Inductor: BMayer@ChabotCollege.edu ENGR-43_Lec-10a_Diode-1_Physics_LoadLine.pptx 34 Bruce Mayer, PE Engineering-43: Engineering Circuit Analysis Source-Resistor-Diode LoadLine  The simplest LoadLine analysis is a SERIES Circuit with A Power Source (usually Voltage) A controlling element (in this case a diode) A Resistive Load  A pictorial Representation  By ohm & KVL  We need to find i D and v D BMayer/


1 Chapter 3. Digital Circuits. 2 Logic signals Digital logic values : “0” & “1” Called binary digit or bit Mapping the infinite set of real analog values.

logic (AND – OR), one level of delay 22 Electrical behavior of CMOS circuits Electrical aspects of CMOS circuit operation Logic voltage levels, DC noise margin, fanout, speed, power consumption, noise, electronic discharge, open-drain outputs, three- state outputs Data / (ECL) The key to reducing propagation delay in bipolar logic family Preventing a gate’s transistors from saturating Schottky diodes ECL (emitter-coupled logic) (or CML: current-mode logic) ECL families Small voltage swing between Low & High/


Bridge Rectifier Circuit with Working Operation and Their Types.

consists of various stages of devices.  Devices like transformer, Diode Bridge, filtering and regulators.  All these blocks combination is called as regulated DC power supply that powers various electronic appliances. http://www.elprocus.com/ Bridge Rectifier Circuit with Working Operation and Their Types Bridge Rectifier Circuit Diagram  The first stage of the circuit is a transformer which is a step-down type.  It changes the amplitude/


Diodes 1. Copyright  2004 by Oxford University Press, Inc. Microelectronic Circuits - Fifth Edition Sedra/Smith2 Figure 3.1 The ideal diode: (a) diode.

Sedra/Smith45 Figure 3.24 Block diagram of a dc power supply. Copyright  2004 by Oxford University Press, Inc. Microelectronic Circuits - Fifth Edition Sedra/Smith46 Copyright  2004 by Oxford University Press, Inc. Microelectronic Circuits - Fifth Edition Sedra/Smith47 Figure 3.25 (a) Half-wave rectifier. (b) Equivalent circuit of the half-wave rectifier with the diode replaced with its battery-plus-resistance model. (c) Transfer/


Comparison of magnet designs from a circuit protection point of view Arjan Verweij, CERN, TE-MPE with input from M. Prioli, R. Schmidt, and A. Siemko A.

-L M A. Verweij, FCC week 11-15 April 2016 Are there hard limits for the magnet design? Magnet powering: Trade-off between:Number of circuits Converter voltage rating (V PC ) Ramp time (t ramp ) 14 Circuit protection Trade-off between:Number of circuits  circ (busbar & diode size & quench propagation) V FPA,max A string of magnets can always be protected, for any magnet design/


Microelectronic Circuit Design McGraw-Hill Chapter 3 Solid-State Diodes and Diode Circuits Microelectronic Circuit Design Richard C. Jaeger Travis N. Blalock.

cell current and cell voltage. For a solar cell to supply power to an external circuit, the I C V C product must be positive, and the cell should be operated near the point of maximum output power P max. Light-Emitting Diodes (LEDs) use recombination processes in the forward-biased pn junction diode to produce light. When a hole and electron recombine, an energy/


Diode Comparison: Schottky, SPA, Zener, TVS

; converting AC to DC. Typically found in large packages such as TO-220. Zener Diode Useful for regulation of DC voltage in power supplies. Typically found in medium-size to large packages (Axial, TO-220). Silicon Avalance Diode (SAD), Transient Voltage Suppressor (TVS) OV Protection Useful for protecting circuits exposed to high-energy events such as lightning surges or voltage transients from mechanical switching/


Notes 01 Introduction to Power Electronics

often switching, nonlinear, and with other transients. A variety of techniques have been developed to help approximately analyze these circuits Assumed states Small ripple assumption Periodic steady state After getting approximate answers, often circuit simulation is used Power Electronics Assumed States In a circuit with diodes, etc. or other nonlinear elements, how do you figure out what is happening ? Guess….and then check your guess/


SUBELEMENT T6 [4 Exam Questions - 4 Groups]

, and inductors; fuses, switches, batteries T6B – Semiconductors; basic principles of diodes and transistors T6C – Circuit diagrams; schematic symbols T6D – Component functions Microhams 2010 Technician 2 T6A01 What electrical component /circuit controls the amount of voltage from a power supply? A. Regulator B. Oscillator C. Filter D. Phase inverter T6D06 What component is commonly used to change 120V AC house current to a lower AC voltage for other uses? A. Variable capacitor B. Transformer C. Transistor D. Diode/


Registered Electrical & Mechanical Engineer

Diodes) Circuits Learning Goals Analyze diode-containing Voltage-Regulation Circuits Use various math models for Diode operation to solve for Diode-containing Circuit Voltages and/or Currents Learn The difference between LARGE-signal and SMALL-Signal Circuit Models IDEAL and PieceWise-Linear Models Diode Models/smaller Small Signal Analsyis Now let y→iD, and x→ vD Use a DC power Supply to set the operating point on the diode curve as shown at right This could be done using LoadLine methods From Calculus /


Chap. 8 Integrated-Circuit Logic Families

external interconnections Discrete components(transistor, diode, resistor, etc.) are protected from poor soldering, breaks or shorts in connecting paths on a circuit board There are some things that Integrated circuits cannot do Integrated circuits have drastically reduced the amount of electrical power needed to perform a given function Integrated circuitry typically requires less power than their discrete counterparts the saving in power supply costs a system does/


Electronic Troubleshooting ET198B Chapter 2

is charged to 16.3V On the negative ½ cycle the anode side of the diode reaches – 17V About 33.3 V ~ 34V across the diode Full-wave Rectifier Full-wave Rectifier Characteristics Circuit function For given components it will have twice the pulse rate on the output. In a power supply it will have ½ the ripple voltage Recharges the capacitor twice every input cycle/


1 SEMICONDUCTORS Tunnel an Varactor Diodes. 2 SEMICONDUCTORS PN diodes and zener diodes have lightly doped PN junctions and similar V-I characteristics.

UHF oscillators in TV tuners Tunnel diode applications also include trigger circuits in oscilloscopes, high speed counter circuits, and very fast-rise time pulse generator circuits.oscilloscopes Tunnel diodes operate as oscillators capable of operating /traffic signal controllers, automatic door openers, burglar alarms 21 SEMICONDUCTORS An IMPATT diode (IMPact ionization Avalanche Transit- Time) is a form of high-power diode used in high-frequency electronics and microwave devices. They are typically made /


ELECTRONIC CIRCUITS EE451 H. Chan; Mohawk College.

H. Chan; Mohawk College MAIN TOPICS (2nd half) Analog & Switching Power Supplies Review of rectification & filtering Review of zener diode as a voltage regulator Transistor series shunt voltage regulators Transistor current regulators IC voltage regulators (e.g. 78/79XX, LM317) Switching-mode regulators (e.g. LH1605) Linear Integrated Circuit Applications BiFET & Norton op-amps, 555 timer, 8038 function generator, active filters, etc. H/


Electronics Overview Basic Circuits, Power Supplies, Transistors, Cable Impedance diode bridge.

Electronics Overview Basic Circuits, Power Supplies, Transistors, Cable Impedance diode bridge Winter 2012 UCSD: Physics 121; 2012 2 Basic Circuit Analysis What we won’t do:What we won’t do: –common electronics-class things: RLC, filters, detailed analysis What we will do:What we will do: –set out basic relations –look at a few examples of fundamental importance (mostly resistive circuits) –look at diodes, voltage regulation/


Analog Electronics Tutorial Series

of transconductance curve RF = VD ID ID VD VD Kristin Ackerson, Virginia Tech EE Spring 2002 The Ideal Diode with Barrier Potential and Linear Forward Resistance Diode Circuit Models The Ideal Diode with Barrier Potential and Linear Forward Resistance Example: Assume the diode is a low-power diode with a forward resistance value of 5 ohms. The barrier potential voltage is still: V = 0.3 volts (typical/


Electronic Circuits POWER SUPPLIES.

-half the total secondary voltage. C.T. VTOTAL ½ VTOTAL Electronic Circuits + + ac - Full-wave pulsating dc - The bridge circuit eliminates the need for a transformer. Reversing the diodes produces a negative power supply. Electronic Circuits + + ac Full-wave pulsating dc - - Reversing the diodes produces a negative power supply. Electronic Circuits Power Supply Review dc half full four cathodes Most line-operated power supplies change ac to ________. dc A single/


Principles & Applications

tapped transformer. A bridge rectifier uses four diodes and provides full-wave performance without a transformer. The power supply energizes the other circuits in a system. Circuit A Circuit B Circuit C The power supply energizes the other circuits in a system. Thus, a power supply defect will affect the other circuits. Most line operated supplies change ac to dc. Power Supply Circuit A Circuit B Circuit C dc dc ac dc Most line/


Gladys Omayra Ducoudray: Inel4201 Chapter 4.5

Analyses 10+ iterations may be required 4.3.3. Iterative Analysis Using Exponential Method Oxford University Publishing Microelectronic Circuits by Adel S. Sedra and Kenneth C. Smith (0195323033) 4.5. Rectifier Circuits Figure 4.20: Block diagram of a dc power supply One important application of diode is the rectifier – Electrical device which converts alternating current (AC) to direct current (DC) One important application/


McGraw-Hill © 2008 The McGraw-Hill Companies Inc. All rights reserved. Electronics Principles & Applications Seventh Edition Chapter 4 Power Supplies.

rectifier uses four diodes and provides full-wave performance without a transformer. McGraw-Hill © 2008 The McGraw-Hill Companies Inc. All rights reserved. Power Supply Circuit A Circuit B Circuit C The power supply energizes the other circuits in a system. Thus, a power supply defect will affect the other circuits. McGraw-Hill © 2008 The McGraw-Hill Companies Inc. All rights reserved. ac Power Supply Circuit A Circuit B Circuit C dc Most/


Amplitude Modulator and Demodulator Circuits

small signals and must be amplified before transmission. High-level modulators produce AM at high power levels, usually in the final amplifier stage of a transmitter. 4-2: Amplitude Modulators Low-Level AM: Diode Modulator Diode modulation consists of a resistive mixing network, a diode rectifier, and an LC tuned circuit. The carrier is applied to one input resistor and the modulating signal to another/


DC Analysis Representation of diode into three models Ideal case – model 1 with V  = 0 Piecewise linear model 2 with V  has a given value Piecewise linear.

designed to operate in the breakdown region are called Zener diodes. Circuit symbol of the Zener diode:  Such a diode can be used as a constant-voltage reference in a circuit.  The large current that may exist at breakdown can cause heating effects and catastrophic failure of the diode due to the large power dissipated in the device.  Diodes can be operated in the breakdown region by limiting/


1 Confidential and Proprietary to Littelfuse, Inc. © 2007 Littelfuse, Inc. All rights reserved. General Electronics TVS Diode Training Training Agenda.

the TVS: this must be larger than the normal operating voltage of the circuit. –Matching the P PPM with the Transient Voltage Threat from the Field Determine the maximum peak pulse power of the TVS diode: this must exceed that of the surge threat it is protecting. The surge power of the threat is usually specified in regulatory requirements and standards such as IEC61000/


1.3b Current Electricity Direct Current Circuits Breithaupt pages 58 to 71 October 5 th, 2010.

.0025Ω total internal resistance = 0.015 Ω Diodes in circuits In most electrical circuits a silicon diode can be assumed to have the following simplified behaviour: Applied pd > 0.6V in the forward direction diode resistance = 0 diode pd = 0.6V Applied pd < 0.6V or in the reverse direction diode resistance = infinite diode pd = emf of power supply Diode question Applied pd across the diode is greater than 0.6V in/


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