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Chip Amps Amplifiers based on integrated circuits

500 Watt Op Amps from Apex Microtechnology
500 Watt Op Amps from Apex Microtechnology
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Old 26th March 2004, 01:17 AM   #21
Steve Eddy is offline Steve Eddy  United States
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Quote:
Originally posted by speaker
Has anyone tried them on audio applications?
Haven't tried the high power modes like the PA-05 but I've been using the PA-02 and the PA-16 for quite a few years. I love 'em. They are a bit pricey though.

I first experimented with monolithic power opamps back in the early 90s. Then I tried a hybrid LH-0101 and found it much better than the monolithics I'd tried and haven't gone back to monolithics since. From the LH-0101 I went to the PA-02 and then the PA-16.

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Old 26th March 2004, 02:23 AM   #22
jasonc is offline jasonc  Canada
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Default Pa-02, Pa-16

Steve, could you please post a design?
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Old 26th March 2004, 04:12 AM   #23
Steve Eddy is offline Steve Eddy  United States
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Default Re: Pa-02, Pa-16

Quote:
Originally posted by jasonc
Steve, could you please post a design?
They're a power opamp so they can be used in most any of the various chip amp/Gainclone circuits. The only additional parts would be the two current sense resistors.

The amps I currently have built are just a simple inverting amp with a gain of 10 (input resistor of 10k and feedback resistor of 100k), 0.12 ohm current sense resistors and a Jensen JT-11P-1 input transformer on the front.

Don't worry about the extra pins I have labled for the intput and output. I use four pin Redel connectors on my stuff so that's why I drew the schematic that way.

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