berkeman said:So you're using p-type mosfets for the low-side switches as well?
EDIT -- I would have thought the n-fets would have better performance. What are the devices?
An H bridge controller is an electronic circuit that is used to control the direction and speed of a motor by changing the polarity of the voltage supplied to the motor.
An H bridge controller works by using four switches to control the flow of current to a motor. By changing the states of these switches, the polarity of the voltage supplied to the motor can be changed, allowing for control of the motor's direction and speed.
H bridge controllers are commonly used in robotics, electric vehicles, and other motor control applications. They can also be used in household appliances, such as fans and electric drills.
There are two main types of H bridge controllers: bipolar and MOSFET. Bipolar H bridge controllers use transistors to control the motor, while MOSFET H bridge controllers use metal-oxide-semiconductor field-effect transistors. MOSFET controllers are more efficient and can handle higher currents, but they are also more expensive.
When choosing an H bridge controller, consider factors such as the voltage and current requirements of your motor, the type of control (analog or digital), and the cost. It is also important to ensure that the controller can handle the load and has built-in protections, such as overcurrent and overvoltage protection, to prevent damage to the motor and the controller itself.