Gate Driver - How to incorporate bootstrap circuitry?

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May
May about 22 hours 前
评论： May about 3 hours 前
I am attempting to use two of the Gate Driver symbol in Simscape to model my selected half-bridge driver. I am using two Gate Driver symbols because it appears the Half-Bridge Driver symbol only accepts one input; in my system, there will be two discrete inputs to the driver.
I do not see from the connections available on the Gate Driver symbol how I would implement bootstrap circuitry to properly bias the upper MOSFET in my half-bridge.
Bootstrap circuitry referring to the highlighted elements shown below:
Thanks!
-M

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回答（1 个）

Vinay
Vinay about 9 hours 前
Hi @May,
The Gate driver input port offers two modeling options for controlling the output state. The PS input allows a single external signal to control the driver output. In contrast, the electrical input port accommodates two electrical input connections, PWM and REF, to drive the output.
In the model the upper MOSFET gate and source are driven by signals 'HO' and '' .The gate driver with electrical input can be used to connect the above signals to the MOSFET as shown below
Hope this will resolve the query!
  1 个评论
May
May about 3 hours 前
Thank you for your response but this did not resolve my question on how to implement bootstrap circuitry with the Gate Driver symbol.

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