Hi
I'm trying to find an IC. The IC says ELM310CB. Does this mean the IC is a LM310, because the LM is not a common IC so i'm having doubts. There is also a company called ELM electronics, but their IC's seem to have a white number and are programmed specific. Anyone have any ideas.
This circuit board comes out of a treadmill that i'm trying to fix and cannot get right. From what i can gether is that the design works very much like a voltage regulator driving a 180v DC motor. I assume the op-amp LM324N is the voltage regulator IC because this IC is driving the base of the bi-polar transistor(CT60AM). I dunno what the ELM310CB ic is supposed to do because it gets feedback voltage from the transistor.
The treadmill totally stopped working so I replaced the transistor(CT60AM) this got the treadmill working again with variable speed. But the minute you stand on the treadmill putting load on the motor it goes crazy starts speeding up automatically then slows down then speeds up. I assume its doing this to compansate the motor load but cannot find a stable voltage.
Am i guessing that the IC i'm searching for could be the possible problem, I have replaced LM324 already and did not solve the problem.
There is a PIC and ULN20034 IC but I assume these are used to control the buttons on the treadmill and provide feedback of current speed. Could the PIC be blown, or the SIPEX ic (also dunno what IC that is either). But I'm assuming these IC's don't have a direct relation to the motor driver circuit. Am I wrong ?
I'm totally confused on how to fix this, any one have any suggestions.
I'm trying to find an IC. The IC says ELM310CB. Does this mean the IC is a LM310, because the LM is not a common IC so i'm having doubts. There is also a company called ELM electronics, but their IC's seem to have a white number and are programmed specific. Anyone have any ideas.
This circuit board comes out of a treadmill that i'm trying to fix and cannot get right. From what i can gether is that the design works very much like a voltage regulator driving a 180v DC motor. I assume the op-amp LM324N is the voltage regulator IC because this IC is driving the base of the bi-polar transistor(CT60AM). I dunno what the ELM310CB ic is supposed to do because it gets feedback voltage from the transistor.
The treadmill totally stopped working so I replaced the transistor(CT60AM) this got the treadmill working again with variable speed. But the minute you stand on the treadmill putting load on the motor it goes crazy starts speeding up automatically then slows down then speeds up. I assume its doing this to compansate the motor load but cannot find a stable voltage.
Am i guessing that the IC i'm searching for could be the possible problem, I have replaced LM324 already and did not solve the problem.
There is a PIC and ULN20034 IC but I assume these are used to control the buttons on the treadmill and provide feedback of current speed. Could the PIC be blown, or the SIPEX ic (also dunno what IC that is either). But I'm assuming these IC's don't have a direct relation to the motor driver circuit. Am I wrong ?
I'm totally confused on how to fix this, any one have any suggestions.