Posted by Circuits Arena on Friday, 3 February 2017
PNP transistor Interface Relay Cicuit is the artlcle explaining PNP transistor Interface Relay Cicuit: PNP Transisto r Interface Relays "ini.This interface circuit is simple and easy to apply ...
PNP transistor Interface Relay Cicuit:
PNP Transistor Interface Relays "ini.This interface circuit is simple and easy to apply to a microcontroller or a parallel port on your computer. The interface relay PNP transistor uses 2 transistors and 2N3904 2n2905 / 2N2907 UAH as a power relay drivers. The benefits of the scheme may, with the high-power relay menggeran logic
TTL input from the computer and microcontroller.
Interface Relays.
The voltage source must follow the relay circuit is used, for example, via switch 12B, the source voltage is 12 or 24 switch voltage source 24B. Detailed relay interface circuit and a microcontroller or a computer can be seen in the following figure.
Functional diodes arranged in parallel with the relay to prevent reverse flow in the transistor due to the magnetic induction of the coil, therefore, these diodes must be installed. To set a microcontroller or computer, it should be noted that a computer or
Microcontroller Grund circuit should be connected to ground in series RELAY With this PNP transistors.
