The MOSFET is considered one of the most powerful semiconductor devices in electronics, in this article we explain the possibility of parallel MOSFET.

The parallel MOSFET connection is the perfect way to higher power load such as motors and transformers, in this post we try to explain some main topics about the parallel MOSFET network.

How to parallel MOSFET

The paralleling of MOSFET is network connection much similar to the generators in parallel and transformers in parallel at power generation stations, at power generation the parallel network is used to share the load, on parallel MOSFET circuit have the same application which is load sharing.

Multiple identical MOSFETs is been connected in parallel with the same gate driver resistor for each MOSFET, this is how a parallel MOSFET network looks like.

Parallel MOSFET circuitĀ 

Parallel MOSFET circuitĀ 
Parallel MOSFET circuit

The figure shows the parallel MOSFET circuit model, the drain terminal and source terminal each of MOSFETs is connected to the bus, as same as the parallel generator.

Each of the MOSFETs and resistors needs to be identical because on the load exchanging purpose this must be fixed criteria.

Parallel MOSFET gate resistor

For the parallel MOSFET network, we need to connect the same resistance value to the gate terminal for gate driving purposes. Using this we can trigger all the MOSFET at the perfect same time.

The MOSFET triggering and current flowing are at the same time, this will enable lower current for each MOSFET load or evenly distributed the load.

They all have the same ON-state resistance and it will reduce the amount of heat generation at the whole circuit.

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