Patent
MOS power-on reset circuit
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TLDR
In this paper, an automatic power-on reset circuit adapted for use on complementary MOS integrated circuit semiconductor dies is provided, which includes a voltage reference stage followed by an amplifier stage.Abstract:
An automatic power-on reset circuit adapted for use on complementary MOS integrated circuit semiconductor dies is provided. The circuit includes a voltage reference stage followed by an amplifier stage. A PN diode is coupled in series with a diode-connected MOSFET and a low current MOSFET device to provide a slight overdrive to the P-channel MOSFET of a CMOS inverter, which determines the initial output level thereof. As the voltage applied to the power supply conductor increases, the switching point of the amplifier-inverter stage varies until the output thereof assumes the opposite logic level. This transition of the output of the amplifier inverter stage is applied to wave shaping circuitry and an output circuit which reliably produces the desired reset signal.read more
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CMOS power-on reset circuit
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