| lumanauw |
I just got back from local electronic market. I saw a "Solid State Relay".
ClassD PWM type power amp uses final transistor as a switch only, on and off with varying width. A relay does the same thing, only on and off.
I dont know the spec of this SS relay, but if its capable of 500khz, I think it can be made classD power amp, with big supply rail and big current (big amp).
Does anyone has tried it before? |
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| IVX |
hi lumanauw,
Usually solid state relays is slow too much (several mS), but you can use other optical solution for the class D- TLP250 (or like), which 1000 times faster vs SS relay. |
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| phase_accurate |
They are usually made to switch 60/60 Hz mains and include things like zero crossing detection.
You can't use them for class-d amps.
They are a nice thing however for remotely switching-on PSUs etc.
Regards
Charles |
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| subwo1 |
| H11Fx is a pretty cool optocoupler which may be worthwhile to tinker with as well. |
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