Derek Dickson
- Jul 8, 2014
- 5
- Joined
- Jul 8, 2014
- Messages
- 5
Hi I am a newbie to this site.Looking forward to conversing.
I have a small robot which I am working on.
There is a small electronic H bridge PCB electronic circuit which drives
the movement of the robot back and forth.
The supply voltage to this H bridge PCB is 4.8 volts (3 new xAAA batteries).
The voltage at the motor is 4.3volts.
There is a loss of 0.5 volt across the H bridge PCB.
When I bypass the H bridge the robot is much more powerful and allot more fun.The voltage to power ratio on the gearmotor is certainly not linear.the 0.5 volts make a massive difference.
Is there away of building a near loss-less H bridge PCB so the full voltage is applied to the motor through an electronic H bridge ? Current draw to the planetary gearmotor is about max 0.4 amps ( locked rotor current).
Also is there a way with out an oscilloscope to check if there is any PWM on the H bridge that may be responible for the 0.5 v drop ?
I have a small robot which I am working on.
There is a small electronic H bridge PCB electronic circuit which drives
the movement of the robot back and forth.
The supply voltage to this H bridge PCB is 4.8 volts (3 new xAAA batteries).
The voltage at the motor is 4.3volts.
There is a loss of 0.5 volt across the H bridge PCB.
When I bypass the H bridge the robot is much more powerful and allot more fun.The voltage to power ratio on the gearmotor is certainly not linear.the 0.5 volts make a massive difference.
Is there away of building a near loss-less H bridge PCB so the full voltage is applied to the motor through an electronic H bridge ? Current draw to the planetary gearmotor is about max 0.4 amps ( locked rotor current).
Also is there a way with out an oscilloscope to check if there is any PWM on the H bridge that may be responible for the 0.5 v drop ?