Project is an electro/mechanical clock the closes a contact every 30 secs. I wish to connect it to a dial mech that requires a pulse of alternating polarity every 30 seconds. Yesterday I cleaned up the the pulse with a 555, and with the aid of a 4013 & 4011 produced the neccessary drive pulses. ( about 300 Ms) All working on 5v. The H bridge was on a small Chinese module. I got no output from it to the clock motor.
Spent a long time testing.. Put LED's on the output of the driver circuit indicate it works.
A 6v bulb on the output of the H-bridge indicates that it responds to test inputs on wires to the 5v supply. I'm stumped.
Any theories or experience driving this chip appreciated.
Spent a long time testing.. Put LED's on the output of the driver circuit indicate it works.
A 6v bulb on the output of the H-bridge indicates that it responds to test inputs on wires to the 5v supply. I'm stumped.
Any theories or experience driving this chip appreciated.