1. V Input V Output Kelvin Monitor Points Input power +12 volts Output / Test Load Carrier Board Plug In Card ASIC Chips Load Keep Short Leads Cable Yale University October 20, 2009

2. Model 250 Yale University May 22, 2008 Relay Current Out Vout/ Load Current IN Voltage IN Input Power 0.5 Ohms 0.05 Ohms Output Power + + - - To Keithley Instruments 2701 Scanning Voltmeter with 7706 Card A Board: Channels 101 -104 B Board: Channels 105 - 108 C Board: Channels 109 - 112 D Board: Channels 113 - 116 R Red Orange BK/O Black Blue Green Blue/Y or Black Yellow Power Cable Colors Molex 9 pin Female Molex 9 pin Male DC-DC Evaluation Board 8 Fly Wires Solder to Eval Board 5 ft Length Can Add Extender Cable DAC: 123, 124 DIO : 121,122 101102 103 104 121 CHANNEL Numbers

3. Yale University April 09, 2009 Model 2151_Max8654 Yale University April 09, 2009 Power Out Power IN Enable / Disable Power Good Out Kelvin points for Vin & Vout

4. Model 2151_IR8431 Yale University April 09, 2009 Kelvin points for Vin & Vout Power IN Enable / Disable Power Good Out Power Out

5. PCB embedded Coil Copper Coils Solenoid

6. Power Supply VInput 5.5 V max to prevent damage. GND Buck Regulator Eval Board Size = 3 inch x 3.5 inch Banana Jacks / Solder Wires Satish Dhawan, Yale University Load Resistor = 0.3 to 1.5 Ώ Line Drop ~ 0.25 volts @ 6 amps in each Leg ??? Twisted Pair Preferred V Input Monitor. 2 Wire Differential V Output Monitor 2 wire Differential Agilent 34970A & Multiplexer 33901A to Monitor I & V April 21. 2008 DC-DC Regulator Setup for Radiation Exposure GND V Output = 1.5 V. 1 to 5 Amps. ~ 0.5 Amps. V out > 5 – 20 Volts 4 Wire Current shunt V Output Monitor 2 wire Differential 4 Wire Current shunt V Output Monitor 2 wire Differential DC-DC Converter Voltage ratio = 8/10 Load: Rated Current or maximum without cooling ~ 1 amp Setup for 4 EVAL Boards Measure Bias Current with Load disconnected Solder all wires ???? Switch on/off

7. Load GND – Negative Side High – Positive Side Control Vin: Negative Side Control Vin: Positive Side Fault Output GND +5 Vcc Electronic Load 2 amps/ volt May 17, 2008 Datel DTL22A-LC 20 amps/100 Watt Electronic Load 2 amps / Volt Trimpot 20 KOhms Set maximum current Helipot 10 KOhms GND