Dclamp1

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dclamp1

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Serial #1:

(only passive portion of circuit assembled.)

w/Itest = 89mA

(mV) voltage across (.47ohm) is:

2.5   5.7   1.4    2.3   2.3
1.3   3.0   2.0   14.8   1.8

 R6   R7    R8     R9    R10
 R5   R4    R3     R2    R1

Circuit voltage with test current:

• 1mA 27.8V
• 10mA 28.04V
• 100mA 28.6V

scope captures

[1] [2] [3] ~35 volts on 10,000uF cap applied to circuit via circuit breaker.

• blue is voltage across V+ and V- at array input
• other traces are voltage across the 0.47 resistors.

[4] [5] ~35 volts on 10,000uF cap applied to circuit via circuit breaker.

• green is the voltage across the 10mF cap
• blue is voltage across V+ and V- at array input
• magenta is voltage across 0.47 ohm resistor of strongest clamp TVS
• difference between blue and green trace is the voltage drop across 12" of 14 AWG wire.
• peak total current is estimated to be 53 amps