radagast
Junior Member level 1
Hi.
I want to build an amplifier that will have a microphone (low voltage, low current) as an input, and a dc motor at the output (it is about 60 ohm). Seeing as I'd need at the output both high voltage and high current I need an power amplifier, right? I saw that a possible design is an operational amplifier followed by a B stage. Is that sufficient, or are there other preferred designs (possibly only with bjts...) for a power amp?
Thanks.
I want to build an amplifier that will have a microphone (low voltage, low current) as an input, and a dc motor at the output (it is about 60 ohm). Seeing as I'd need at the output both high voltage and high current I need an power amplifier, right? I saw that a possible design is an operational amplifier followed by a B stage. Is that sufficient, or are there other preferred designs (possibly only with bjts...) for a power amp?
Thanks.