A gate driver is a specially designed circuit that is used to drive the gate of mosfet or.
High side switch transistor.
The mosfet were used as high side switches in the circuit.
Part 7 covered using transistors to switch loads that require higher currents or voltages than the microcontroller can handle.
Alternatively we can use a pnp transistor to create a high side switch.
This time however the emitter is tied high.
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Typically these use a pnp bjt or p channel mosfet.
We ll need a more complex circuit to implement a practical high side power on switch.
This transistor connects between v and the load.
It consists of a mosfet a gate driver with charge pump and multiple protection and diagnosis features.
The circuit above is called a low side switch because the switch our transistor is on the low ground side of the circuit.
Which means that pnp transistor shown in the first image will always be on regardless of the i o pin state.
For driving the mosfet in high side configuration ir2110 gate driver ic was used.
Since the switching element the transistor was at ground it.
Similar to the npn circuit the base is our input and the emitter is tied to a constant voltage.
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The load was connected to the power source and an npn transistor acted as a switch to ground.
While designing the ups circuits mosfet were used in the inverter circuits.
In addition several protection features are integrated.
Ir2110 is a high low side gate driver ic which is used with power mosfet and igbt.
For example short circuit protection can protect the mosfet if a short to ground battery occurs.
All the circuits had similar topologies.