Mikay
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Does anyone has any idea on how to make minor modification to the CMOS inverter(can be multiple stage cascaded if necessary) so that it's input threshold voltage is approximately independent to the power supply? Say, when the power supply is changed from 3V to 6V, the switching point of the inverter is always around 2V(or a very tight range 1.8~2.2). This is will very helpful in my BGR startup circuits design.
Really appreciate your time.
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