Since the switching element the transistor was at ground it.
High side switch transistor.
All the circuits had similar topologies.
This time however the emitter is tied high.
The mosfet were used as high side switches in the circuit.
This transistor connects between v and the load.
Because of how transistors work these can be a little more difficult to use in an arduino or raspberry pi circuit.
The load was connected to the power source and an npn transistor acted as a switch to ground.
The opposite of the low side switch is the high side switch.
A gate driver is a specially designed circuit that is used to drive the gate of mosfet or.
It consists of a mosfet a gate driver with charge pump and multiple protection and diagnosis features.
Which means that pnp transistor shown in the first image will always be on regardless of the i o pin state.
For example short circuit protection can protect the mosfet if a short to ground battery occurs.
While designing the ups circuits mosfet were used in the inverter circuits.
Typically these use a pnp bjt or p channel mosfet.
Similar to the npn circuit the base is our input and the emitter is tied to a constant voltage.
For driving the mosfet in high side configuration ir2110 gate driver ic was used.
Part 7 covered using transistors to switch loads that require higher currents or voltages than the microcontroller can handle.
In addition several protection features are integrated.
The real switch is still the pnp transistor on the right.
Profet protected field effect transistors is our high side smart power switch brand.
The circuit above is called a low side switch because the switch our transistor is on the low ground side of the circuit.
With our switch portfolio you can find a protection solution for your inductive capacitive and resistive loads ensuring your design is scalable and robust.
We ll need a more complex circuit to implement a practical high side power on switch.