Re: Flyback Troubleshooting help

Just grab a capacitor (.1 to 1 uF or so) and put it in series with the
generator output. You just need to get rid of the DC component of the
signal (transformers get weird around DC).

On Mon, Jan 17, 2011 at 3:19 PM, Jess Askey <jess@askey.org> wrote:

> My generator doesn't have a DC offset, I will have to build one. I just
> have a waveform generator IC that I breadboarded up really quick... I will
> see if I can get a waveform generator locally that has that feature.
>
>
> On 1/17/2011 2:16 PM, Rodger Boots wrote:
>
> Does your generator have a knob marked "DC offset"? If so, set it for a -4
> to +4 volt square wave. Using 0 to +8 volts isn't going to give you useful
> readings.
>
>
> On Mon, Jan 17, 2011 at 2:19 PM, Jess Askey <jess@askey.org> wrote:
>
>> Okay, I put the standalone LOPT onto my square wave generator
>> (unfortunately my generator can only supply 30ma) so Im not sure that is
>> enough.
>>
>> Here is the signal before attaching the LOPT.... 15KHz 9vP-P
>>
>>
>> http://gamearchive.askey.org/Video_Games/Manufacturers/Atari/monitors/amplifone/raster/images/generator_output_15k.jpg
>>
>> Here is the primary with that signal attached... secondaries are exactly
>> the same waveform, yet in different ratios (and those ratios are not
>> correct)
>>
>>
>> http://gamearchive.askey.org/Video_Games/Manufacturers/Atari/monitors/amplifone/raster/images/lopt_ringing_15k.jpg
>>
>> Doesn't look right.
>>
>> When I read a DC voltage on the Anode cap, I have 2.2VDC, pretty low. :-(
>>
>>

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Received on Mon Jan 17 16:35:53 2011