Zonn wrote:
>On Wed, 10 Mar 2004 03:08:11 -0600, Rodger Boots <rlboots@cedar-rapids.net>
>wrote:
>
>
>
>>>Since the Yoke and Resistor act like a voltage divider, and the voltage at FB is
>>>held constant, then when V is at 25v, there is 1v across FB and 24v across the
>>>yoke. Now when V jumps up to 30v, FB is still held to 1v, but now there is 29v
>>>across the yoke.
>>>
>>>
>>>
>>>
>>No, the yoke voltage doesn't change, the drop across the output
>>transistors changes.
>>
>>
>>
>Thanks Rodger, that makes perfect sense!
>
>So would low gain, or a slow slew rate in the amplifier, allow ripple in the
>power supply to make it through to the yoke?
>
>Power supply regulation does stabilize the display, and I'm just wondering why
>that would be the case.
>
I'm betting it's a board layout issue more than a ripple issue.
Probably the ground layout of the board.
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Received on Wed Mar 10 14:32:58 2004
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