Transcript Tester Plug In Cards Model 2151

Kelvin Monitor Points
V Input
V Output
Input power +12 volts
Cable
Carrier Board
Plug In Card
ASIC Chips Load
Keep Short Leads
Yale University October 20, 2009
Output / Test Load
To Keithley Instruments 2701 Scanning Voltmeter with 7706 Card
Relay Current Out
121
A Board: Channels 101 -104
B Board: Channels 105 - 108
C Board: Channels 109 - 112
D Board: Channels 113 - 116
104
Vout/ Load
103
Current IN Voltage IN
102
101
CHANNEL
Numbers
0.5 Ohms
DAC: 123, 124
DIO : 121,122
+
Power Cable
Colors
Can Add
Extender
Cable
Input Power
Red
R
-
Orange
Molex
9 pin
Female
Molex
9 pin
Male
BK/O
Black
Blue
8 Fly Wires
Solder to
Eval Board
5 ft Length
0.05 Ohms
Yellow
Blue/Y or Black
Green
+
DC-DC
Evaluation
Board
Model 250
Yale University
May 22, 2008
Output Power
-
Power IN
Enable / Disable
Power Good Out
Power Out
Kelvin points for Vin & Vout
Yale University April 09, 2009
Model 2151_Max8654
Power IN
Enable / Disable
Power Good Out
Power Out
Kelvin points for Vin & Vout
Yale University April 09, 2009
Model 2151_IR8431
MAX8654 with embedded coils (#12), external coils (#17) or Renco Solenoid (#2)
Vout=2.5 V
100
90
Solenoid
80
Copper Coils
Efficiency (%)
70
PCB embedded Coil
60
50
40
30
20
10
0
0
0.5
1
1.5
2
2.5
3
3.5
4
Output current (amps)
MAX #12, Vin = 11.9 V
MAX #17, Vin = 11.8 V
MAX #2, Vin = 12.0 V
4.5
5
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
Power Supply
V out > 5 – 20 Volts
4 Wire Current shunt
~ 0.5 Amps
.
VInput
GND
5.5 V max to prevent
damage.
V Output Monitor 2 wire Differential
Twisted Pair Preferred
V Input Monitor. 2 Wire Differential
Agilent 34970A &
Multiplexer 33901A
to Monitor I & V
Buck Regulator Eval Board
Size = 3 inch x 3.5 inch
Twisted Pair Preferred
Solder all wires ????
V Output Monitor 2 wire Differential
4 Wire Current shunt
1 to 5 Amps
.
GND
V Output = 1.5 V
.
V Output Monitor 2 wire Differential
Load Resistor
= 0.3 to 1.5 Ώ
Switch on/off
Line Drop ~ 0.25 volts @ 6 amps in each Leg ???
Banana Jacks / Solder Wires
Satish Dhawan, Yale University
April 21. 2008
DC-DC Regulator Setup for Radiation Exposure
Control Vin: Negative Side
Control Vin:
GND
+5 Vcc
May 17, 2008
Load
20 amps/100 Watt
Electronic Load
2 amps / Volt
GND – Negative Side
Positive Side
Fault Output
GND
Datel DTL22A-LC
Helipot
10 KOhms
High –
Positive Side
Trimpot
20 KOhms
Set maximum current
Electronic Load 2 amps/ volt