Re: Remote Turn-On

On Fri, 02 Dec 2005 13:58:47 GMT, "Mike DeAngelis" <mikey4@xxxxxxxx>
wrote:

>The amp should turn on when an audio signal is present and turn off some
>time (2 min.?) after the audio signal is not present.

---
OK. (view in Courier)

V+
+5V>-+--------+------+---------------+-----+---+ |
| | | | | | | COM
| | |R1 | | | +------+ |
| | [10k] | | | |K | O
| | | | | [4K7][DIODE] [COIL]- |
| | | | | | | | O-> |
| | | CR1 | | | +------+ |
| +---|-[1M]-+-[<1N4148]-+ |Rd | | | NO
|Rth | | | | [10K]<-|+\ | D
[10K]<-+--|+\ | R2 | | | >-+---G
| | >----+--[510K]---+---|----|-/ LM393 S
VIN>---[10K]-|-/ LM393 |+ | | U1B |
| | U1A [240µF]| | |
| | C1| | | |
GND>-+--------+------------------+---+-----+---------+


Do you need a circuit description?


--
John Fields
Professional Circuit Designer
.

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