Am 09.09.2012 18:49, schrieb Al Kossow:
On 9/8/12 11:50 PM, Sergey wrote:Hello friends,
This diode
in the configuration shown on the diagram is useless.
It does look backwards. A common POR circuit has a R/C
in series, with a diode across the R so that when power
is removed the C discharges through the diode. Sometimes
a reset switch is added which can also discharge C.
+V
|
+-+
_ |
^ R
| |
+-+---- to Schmitt trigger input
|
C
|
GND
these methods are working
Regards
Wolfgang
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