hi. could someone help me with a circuit design? this should be pretty easy, but i'm still learning.
i'm trying to amplify my current from 1 mA to around 20mA.
the control signal is 5V when on and can give about 1 mA. coming from this :
http://www.expert-sleepers.co.uk/es5.html
but needs to trigger this :
http://www.sainsmart.com/4-channel-5v-relay-module-for-pic-arm-avr-dsp-arduino-msp430-ttl-logic.html
which wants about 15-20mA
my power supply is around 5.3 V. so probably just a simple transistor circuit with a resistor before the transistor limiting the current to the 1mA? and then the 5.3V power into the transistor. could someone sketch up the circuit and list part numbers? so i don't foul this thing up.
thanks a bunch!
i'm trying to amplify my current from 1 mA to around 20mA.
the control signal is 5V when on and can give about 1 mA. coming from this :
http://www.expert-sleepers.co.uk/es5.html
but needs to trigger this :
http://www.sainsmart.com/4-channel-5v-relay-module-for-pic-arm-avr-dsp-arduino-msp430-ttl-logic.html
which wants about 15-20mA
my power supply is around 5.3 V. so probably just a simple transistor circuit with a resistor before the transistor limiting the current to the 1mA? and then the 5.3V power into the transistor. could someone sketch up the circuit and list part numbers? so i don't foul this thing up.
thanks a bunch!