Difference between revisions of "Dclamp1"
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=dclamp1= | =dclamp1= | ||
| + | [[http://dhcp-17-197.media.mit.edu/for_wiki/hc_dclamp1-041209.pdf SCH]] | ||
| + | [[http://dhcp-17-197.media.mit.edu/for_wiki/rdclamp1t.pdf TOP]] | ||
| + | [[http://dhcp-17-197.media.mit.edu/for_wiki/rdclamp1b.pdf BOT]] | ||
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==Serial #1:== | ==Serial #1:== | ||
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==scope captures== | ==scope captures== | ||
[http://dhcp-17-197.media.mit.edu/ankle/scope_capture/dclamp1-pulse-strong-and-week--wrt-ave.png] | [http://dhcp-17-197.media.mit.edu/ankle/scope_capture/dclamp1-pulse-strong-and-week--wrt-ave.png] | ||
| + | [http://dhcp-17-197.media.mit.edu/ankle/scope_capture/dclamp1-pulse-2weakest-wrt-ave.png] | ||
| + | [http://dhcp-17-197.media.mit.edu/ankle/scope_capture/dclamp1-pulse-2strongest-wrt-ave.png] | ||
~35 volts on 10,000uF cap applied to circuit via circuit breaker. | ~35 volts on 10,000uF cap applied to circuit via circuit breaker. | ||
* blue is voltage across V+ and V- at array input | * blue is voltage across V+ and V- at array input | ||
| Line 27: | Line 37: | ||
| − | [http://dhcp-17-197.media.mit.edu/ankle/scope_capture/dclamp1-pulse-supply_and_strongest-wrt-ave.png] [http://dhcp-17-197.media.mit.edu/ankle/scope_capture/dclamp1-pulse-supply_and_strongest_400us.png] ~35 volts on 10,000uF cap applied to circuit via circuit breaker. | + | [http://dhcp-17-197.media.mit.edu/ankle/scope_capture/dclamp1-pulse-supply_and_strongest-wrt-ave.png] |
| + | [http://dhcp-17-197.media.mit.edu/ankle/scope_capture/dclamp1-pulse-supply_and_strongest_400us.png] | ||
| + | ~35 volts on 10,000uF cap applied to circuit via circuit breaker. | ||
* green is the voltage across the 10mF cap | * green is the voltage across the 10mF cap | ||
* blue is voltage across V+ and V- at array input | * blue is voltage across V+ and V- at array input | ||
Latest revision as of 15:33, 16 October 2009
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dclamp1
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
![[1]](http://dhcp-17-197.media.mit.edu/ankle/scope_capture/dclamp1-pulse-strong-and-week--wrt-ave.png){kind=link}
![[2]](http://dhcp-17-197.media.mit.edu/ankle/scope_capture/dclamp1-pulse-2weakest-wrt-ave.png){kind=link}
![[3]](http://dhcp-17-197.media.mit.edu/ankle/scope_capture/dclamp1-pulse-2strongest-wrt-ave.png){kind=link}
![[4]](http://dhcp-17-197.media.mit.edu/ankle/scope_capture/dclamp1-pulse-supply_and_strongest-wrt-ave.png){kind=link}
![[5]](http://dhcp-17-197.media.mit.edu/ankle/scope_capture/dclamp1-pulse-supply_and_strongest_400us.png){kind=link}