yes.....actually i made this simulation on proteus by taking the circuit from internet the problem is i want to use a motor in bidirection for a wheel chair the motor is of 150 watt and 12V first i made some circuits using darlington pairs and B.J.T but that were not better as many people from this forum rejected them so i wanted to switch to mosfet and i used this I.C but the problem is the upper mosfet never gets on when i give high signal on HIN when i increase the supply on upper mosfet collector the motor starts and Q1 conducts but i cannot increase voltage in reality because my motor is of 12V so i cannot give higher voltage on Q1 collector whats the solution please guide me
i didnt get it from I.R i download from a forum.....my bad :s......well can a half bridge be used for both directions or an H-bridge must be made? and i have just turned off the down transistor because i wanted to turn on the top transistor and check it whether it works properly but it never gets on :s
1) As stated above, if you are using a bridge and want both directions, you need a full bridge.
2) Have you asked yourself why you want a bridge (half of full) versus just low-side mosfets or solid-state relays and switches? That is, are you eventually going to use PWM for speed control?
You know "bang bang" kids cheap RC cars? Full power or no power without speed control.
Can you picture a wheelchair going with a bang bang throttle? Maybe the steering is the same.
You know "bang bang" kids cheap RC cars? Full power or no power without speed control.
Can you picture a wheelchair going with a bang bang throttle? Maybe the steering is the same.
will this circuit work because there will be a lot of weight on the motor ?? and is there a formula of finding the power of motor by the weight ?i am using a 150watt power motor the weight on the motor is about 120 Kgs is the motor ok ?
will this circuit work because there will be a lot of weight on the motor ?? and is there a formula of finding the power of motor by the weight ?i am using a 150watt power motor the weight on the motor is about 120 Kgs is the motor ok ?
I think you need to reconsider your design. When you mentioned that motor earlier, I thought maybe it was for a model, not a full sized wheelchair. Will you be using two motors or just one?