jit_singh_tara
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hello frnds....
I am driving a lcd with a controller pic16f77a. i am giving output from a pin to a resistor 100ohm which is connected to base of transistor,emittor is grounded,collector is connected to a relay whose other terminal is connected to 5 v supply same which is powering up the whole circuit.
when i turn on the relay . the lcd backlikght is dimmed .this is because the relay is taking more current ,please suggest a solution.
the transistor is 2n3904,resistanc is 100 ohm , relay is 5V 2 pole relay.please suggest a solution.
I am driving a lcd with a controller pic16f77a. i am giving output from a pin to a resistor 100ohm which is connected to base of transistor,emittor is grounded,collector is connected to a relay whose other terminal is connected to 5 v supply same which is powering up the whole circuit.
when i turn on the relay . the lcd backlikght is dimmed .this is because the relay is taking more current ,please suggest a solution.
the transistor is 2n3904,resistanc is 100 ohm , relay is 5V 2 pole relay.please suggest a solution.