Insulation drive circuit with pulse transformer

Published:2011/9/14 6:00:00 Author:Sophia | Keyword: Insulation drive circuit, pulse transformer | From:SeekIC

Figure 1 shows that in the half-bridge and full bridge circuit of power MOSFET, how the high-pressure side switch changes to a key point. Generally, to drive the high-pressure side of the component, a source is required between the gate pole and electrodeinsulation. If it is low-speed switch, as shown in Figure 2 dedicated driver IC constituted by the optical coupler can be used, the source terminal of the high-pressure side will make high-frequency voltage source overlap, and noise is very weak. Therefore, In reality there are many insulation ways useing the pulse transformer insulation, but to use the pulse transformer,we need to make effor to make the circuit.



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