ericyeoh
Member level 2
h bridge transistor motar driver cct
Please take a look at this link,
https://www.robotroom.com/BipolarHBridge.html
If i exchange the Transistor of PNP into NPN.
The operation is change into
Forward
R1= GND, R2= Vcc, R3= VCc ,R4 =Gnd
Reverse
R1= Vcc, R2= Gnd, R3= Gnd ,R4 =Vcc
The problem, i facing at this moment is that when the transistor is on, The transistor cannot endurance for long period due to the heat. The transistor that i been using in the circuit is NPN(2N2222A). The resistor connect to the each of the Transistor is 1k ohm.
The Voltage supply to this circuit i use is 5V, the input volatge to each transistor also 5v(when need it).
But i exchange the resistor into 100 ohm to each Transistor(base), it seems to be last long a bit, but also cannot endurance for long period, the transistor will heat up and burn....
I need help here. please reply the solution step by step tq.
[/img]
Please take a look at this link,
https://www.robotroom.com/BipolarHBridge.html
If i exchange the Transistor of PNP into NPN.
The operation is change into
Forward
R1= GND, R2= Vcc, R3= VCc ,R4 =Gnd
Reverse
R1= Vcc, R2= Gnd, R3= Gnd ,R4 =Vcc
The problem, i facing at this moment is that when the transistor is on, The transistor cannot endurance for long period due to the heat. The transistor that i been using in the circuit is NPN(2N2222A). The resistor connect to the each of the Transistor is 1k ohm.
The Voltage supply to this circuit i use is 5V, the input volatge to each transistor also 5v(when need it).
But i exchange the resistor into 100 ohm to each Transistor(base), it seems to be last long a bit, but also cannot endurance for long period, the transistor will heat up and burn....
I need help here. please reply the solution step by step tq.
[/img]