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I built a switching circuit for RF transmitter. Here NPN(BC547) transistors base gets switching signal from microcontroller & collector connected 9volt 6f22 battery through small resistor Emitter grounded directly. here 9volt sugar cube relay used & relay output (N/o)given to transmitter circuit.
Here battery gets drained (9 volts to 5 volts) within 24 hours without sending any switching signal from a microcontroller.The circuit just ON condition only.
I want to overcome the battery discharging problem. As per my expectation battery should come at least 6 months.
Please help me.
Pl.looking forward to valuable replies with great thanks.
Here battery gets drained (9 volts to 5 volts) within 24 hours without sending any switching signal from a microcontroller.The circuit just ON condition only.
I want to overcome the battery discharging problem. As per my expectation battery should come at least 6 months.
Please help me.
Pl.looking forward to valuable replies with great thanks.