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04-10-2009, 11:12 PM #81
 Class 2M Laser Join Date: Mar 2009 Location: Kakanj, Bosnia and Herzegovina Posts: 589 Rep Power: 42
ReNNo
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Re: Testing DDl's circuit

No way...I'm not going to give 100mA
I have fobia of 100mA

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04-11-2009, 11:15 PM #82
 Class 1 Laser Join Date: Mar 2009 Location: New Jersey, United States of America Posts: 74 Rep Power: 10
Clickey
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Re: Testing DDl's circuit

Whats DVM stand for?

04-11-2009, 11:22 PM #83
 Class 2M Laser Join Date: Mar 2009 Location: Kakanj, Bosnia and Herzegovina Posts: 589 Rep Power: 42
ReNNo
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Re: Testing DDl's circuit

You can measure voltage drop on 1ohm resistor, so voltage drop=current.
If there is volt drop of 0.1V, current is 0.1A.
R=U/I
1=0.1/?
So, current is equal to voltage drop on 1ohm resistor.
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Homemade Blue-Ray laser @ 100mA PHR-803T
O-like Green (532nm) 150mW module in UF WF-501B host
808nm 1W Homemade IR portable laser

04-12-2009, 09:07 AM #84
 Class 3B Laser Join Date: Jul 2007 Location: Berkshire UK Posts: 2,749 Rep Power: 1251
rog8811
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Re: Testing DDl's circuit

Quote:
 Whats DVM stand for?
Digital volt meter, sometimes called a multimeter as it measures more than just volts.

Regards rog8811

random picture of a DVM, wording is not pertinant to the discussion [/edit]
Attached Thumbnails

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