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lauret  
#1 Posted : Sunday, April 4, 2010 2:09:12 AM(UTC)
lauret

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What would need to be modified on the Placid BP to be able to deliver +-30V at about 30-40mA? Swap out some capacitors or is it too high for the transistors?

Thanks!
Brian Donegan  
#2 Posted : Sunday, April 4, 2010 5:53:43 AM(UTC)
Brian Donegan

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The Placid circuit cannot be modified for output voltages that high.

The BC546/556 are rated for 80V and the FJPF5200/1943 are rated for 250V, so they will not be a problem.

The real problem will the be opamp, which has max rail voltages of +-17VDC.
lauret  
#3 Posted : Sunday, April 4, 2010 12:40:59 PM(UTC)
lauret

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Brian Donegan wrote:
The Placid circuit cannot be modified for output voltages that high.

The BC546/556 are rated for 80V and the FJPF5200/1943 are rated for 250V, so they will not be a problem.

The real problem will the be opamp, which has max rail voltages of +-17VDC.


Thanks for your answer! I guess there is no easy way around that, right?

Edited by user Sunday, April 4, 2010 2:24:09 PM(UTC)  | Reason: Not specified

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