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Old 20th October 2011, 06:19 PM   #621
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I don't understand, could you elaborate?
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Old 20th October 2011, 06:19 PM   #622
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Originally Posted by merlin el mago View Post
Extracted from leonvb BIII manual in the TP site:

"The standard board requires an input voltage of 5.25V and it draws approximately 440mA when one is using the recommended set of Trident shunt regulators"
I had the same problem with a repair manual for the Quad FM4 Tuner. It mentions current draw of 30mA. I found that it drew about six times that, 180mA. In the end I checked it using a power supply (no reg) with a C-R-C filter and measuring the voltage across the resistor.
Chris
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Old 20th October 2011, 06:22 PM   #623
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I don't understand, could you elaborate?
Salas was indicating the voltage drop across the green LEDs on the current setting circuit.
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Old 20th October 2011, 06:24 PM   #624
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I doubt that Russ or Brian left a wrong information in his web site, a lot of people buy his products but who knows "errarem umanum est"
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Old 20th October 2011, 06:29 PM   #625
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I doubt that Russ or Brian left a wrong information in his web site, a lot of people buy his products but who knows "errarem umanum est"
What was it the Sherlock Holmes said? Ah yes, "when you have eliminated the impossible, whatever is left, however improbable, must be the truth".
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Old 20th October 2011, 06:37 PM   #626
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Measured voltage across all 4 LEDs 7.48V
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Old 20th October 2011, 08:04 PM   #627
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With a dummy load 11 ohms (two 22R in parallel) reg gets 5.25Vout so 0.5A
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Old 20th October 2011, 08:10 PM   #628
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Connected again the B3 & still the same problem can't reach 5.25Vout
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Old 20th October 2011, 08:32 PM   #629
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What's the load consumption? If it's for BII or III here is the reason why sounds good...
It is for BII.
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Old 20th October 2011, 08:40 PM   #630
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This current have to be for a Trident, wich one XO, right?
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