Programmable Power Supply Mid-semester presentation Jan. 20, 2008 Gregory Kaplan Dmitry Babin Supervisor: Boaz Mizrahi HS DSL

Reminder Active load Power supply Control unit User interface for standalone operation LCDKeysLEDs User interface DUTDUT Measurement unit

Overview Source/Sink/Measurement Module 1 (Outputs 1,2) OUTPUT 1 RETURN 1 FAN5109- BMX TO/FROM FPGA OUTPUT 2 RETURN 2 FAN5109- BMX MOSFET Driver V DD 2 PWM LT2296- CUP LT2296- CUP A/D Converter Post regulator block Post regulator block AD5415YRUZ D/A Converter ADR391 Vref 2 ADC CONTROL 4 SPI 14 ADC DATA 2 ADC CONTROL 1 CLR

Overview Source/Sink/Measurement Module 2 (Outputs 3,4) TO/FROM FPGA OUTPUT 4 RETURN 4 FAN3227 TMX MOSFET Driver V DD 2 PWM Post regulator block OUTPUT 3 RETURN 3 FAN5109- BMX MOSFET Driver V DD 2 ADC CONTROL 4 SPI 14 ADC DATA 2 ADC CONTROL LT2296- CUP LT2296- CUP A/D Converter Post regulator block AD5415YRUZ D/A Converter ADR391 Vref 1 CLR

DC-DC Converter Post regulator ADC Voltage Sense DAC Current Sense Output FPGA Controller Block Output setting Input voltage sense feed- forward Tempe- rature Current limit PWM Microprocessor Overview Control Scheme

USB Port 16 DATA 5 USB CONTROL 2 2Mbit SPI Flash 3 SPI DATA IN, OUT, CLK 3 SPI CS,WP,HOLD 2 PROG_B*,DONE* 14x4=56 ADC Output 2x4=8 ADC Control 2x4=8 PWM 5 SPI+CS * Dedicated conf pins 16 DATA 2 High-Speed USB 5 USB CONTROL ? USB Control CY7C68013A -100AXC M25P20 -VMN6 Xilinx SPARTAN 3-E XC3S250E-4-PQ208 Microchip PIC18F87J50 -I/CT Overview Control Module TO/FROM SSM MODULE 2 DAC 2 1 Real Time Clock Temperature monitor (up to 8 devices) LM75 CIM-5 RTC-8564JE I2CI2C 2 STATUS FLAGS 4 Keypad Graphic LCD Module Optrex F-51553GNBJ -LW-AEN PB1-PB PB0

Graphic LCD Module Optrex F-51553GNBJ -LW-AEN Power flow Control Module CY7C68013A M25P20 RTC-8564JE Xilinx SPARTAN 3-E Microchip PIC18F87J50 Universal Input 107W ALS V 75W TPS75003RHL LTC FAN4855MTC Li-ion V (optional) 2.5V 1.2V VDDVcore VDDVaux Vcore VDD 3.3V 5V VDD AC/DC Converter DC/DC Converter + Battery Charger Designated FPGA Power Manager DC/DC Booster Up to 85mA Up to 15mA Up to 0.8mA Up to 222mA More than 100mA Up to 42mA BR1255 Small Li battery (optional) 5V OR V BAT

Power flow Source/Sink/Measurement Module MOSFET Driver OUTPUT LT2296- CUP RETURN AD5415 YRUZ Post regulator block 13.2V 3.3V ??

AC-DC converter XILINX Spartan-3E EZ-USB PIC Charger/ DC-DC 5V DC Booster Designated FPGA power manager USB type B connector Data interface to analog part Main power to analog part Mechanics Control Module

49.8x x80 Push Buttons Ø12 20 mm Graphic LCD Module VA 64x32 Mechanics User Interface 4 LEDs 185 mm

Timetable Nov 18 Nov 25 Dec 02 Dec 09 Dec 16 Dec 23 Dec 30 Jan 06 Jan 13 Jan 20 Jan 27 Feb 03 Feb 10 Feb 17 Feb 24 Mar 02 Mar 09 Mar 16 Mar 23 Mar 30 Survey and characterization Detailed design Components selection Schematics Pin-to-pin diagrams Layout Board design Board assembly Software characterization Initial tests Presentation Char. presentation We are here Bill of materials is done Layout is ready End of project A