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08/19/02 18:50
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#27523 - RE: Relay driver // Steve/active low
use my scheme u dont need 2 transistor for one relay , only single pnp for one relay is enough just use one 7905 for -v regulator, and guranti, relay will not switch on , on reset , couse on reset ports will be high and pnp wil not triger with high logic , im using A124 pnp transistor for 12volt relays for remote control switching with 2051, more over if u will use A124, u will not need any resistor for base , cose there is bulitin 10k resistor in it , any way if u like i can sent u my designe

fk

List of 19 messages in thread
TopicAuthorDate
Relay driver for 8051            01/01/70 00:00      
RE: Relay driver for 8051            01/01/70 00:00      
RE: Relay driver for 8051            01/01/70 00:00      
RE: Felix            01/01/70 00:00      
RE: Relay driver for 8051            01/01/70 00:00      
RE: Relay driver for 8051            01/01/70 00:00      
RE: Relay driver for 8051            01/01/70 00:00      
RE: Relay driver for 8051            01/01/70 00:00      
RE: Relay driver for 8051            01/01/70 00:00      
RE: Relay driver for 8051            01/01/70 00:00      
RE: Relay driver // Farooq            01/01/70 00:00      
RE: Relay driver for 8051            01/01/70 00:00      
RE: Relay driver for 8051            01/01/70 00:00      
RE: Relay driver for 8051 Ijaz            01/01/70 00:00      
RE: Relay driver // Steve            01/01/70 00:00      
RE: Relay driver for 8051/ijaz            01/01/70 00:00      
RE: Relay driver // Steve/active low            01/01/70 00:00      
RE: Relay driver // Farooq            01/01/70 00:00      
RE: Relay driver for 8051            01/01/70 00:00      

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