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need opamp output amplifier for Hi valtage output ....

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maziar

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Hi

we use normal opamp (for Ex LF356)with simple complementary NPN PNP output buffer when need higher current in out is simple and low cost ,,,,


but now i need Hi current (3A) and hi voltage (± 50V) output without high voltage opamp ...


seem i need one stage before output buffer for boost out voltage of LF356 (±12V) to (± 50) volt

can help me to design this preamp ?
 

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