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Old 03-20-2017, 10:30 AM   #1
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Default Discussion: Simple Circuit Overcomes MOSFET Gate-Threshold Voltage Challenge

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Sajjad Haidar Electronic Design When a MOSFET or IGBT gate-threshold voltage is higher than the available drive voltage, it's standard to use an op amp or other driver to bridge the difference. This circuit uses a basic optocoupler plus a few simple passive components to achieve the required results.
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Old 03-20-2017, 10:30 AM   #2
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Plus the gate must be relative to the source. You have a paddle hanging in the air in DC.
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