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What kind of relay is this?

(*steve*)

¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
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Jan 21, 2010
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OK, so if I place a 10V zener in series with that diode, what would the maximum collector voltage on the transistor be, and what would be the range of voltages seen across the relay coil?
 

Davewalker5

Sep 20, 2014
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Steve here is some schematic clips with relays RC networks and an relay driver

Relay Driver has a FET Q2 , a transistor driver Q3

Most driver circuits don't have the FET, they just go direct to the transistor driver

The transistor is to output more current to the relay coil to energize it faster?

The FET is used for what? and without using the FET it would be the same? so what's the difference
 

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  • Relay Driver circuit pic#1.jpg
    Relay Driver circuit pic#1.jpg
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Davewalker5

Sep 20, 2014
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Here the schematic clip of the Relay RC network with the Series Diode we are talking about

The Capacitor stores the relays voltage and the 100 resistor drains off the coils slowly sinking it back to the power supply

The Series Diode blocks the capacitor from draining the voltage and current into the coil?
 

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  • Relay RC network pic#1.jpg
    Relay RC network pic#1.jpg
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Davewalker5

Sep 20, 2014
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Here is another Relay RC network suppressor circuit

This RC doesn't have the Series diode, so what happens now?
 

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  • Relay RC network pic#2.jpg
    Relay RC network pic#2.jpg
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