Power-on reset circuit with long power-on reset time-delay and short power-off response time
A delay circuit, electrical reset technology, applied in electrical components, electronic switches, pulse technology, etc., can solve problems such as short pulse width reset signal glitches, power supply fluctuations, etc.
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[0036] Under normal circumstances, if the low level of the output reset signal represents reset, and the high level represents release of reset, then the preferred specific implementation of the present invention is as follows:
[0037] Such as image 3 As shown, the power-on reset circuit consists of the following parts:
[0038] A power supply voltage detection circuit (10), the output terminal of which is connected to the second input terminal of the first NAND gate (13);
[0039] Delay circuit (11), its input terminal is connected to the output terminal of the first NAND gate (13), and its output terminal is connected to the first input terminal of NOR gate (16) and the input terminal of inverter (14);
[0040] The first NAND gate (13), its first input terminal is connected to the output terminal of the second NAND gate (15), its second input terminal is connected to the output terminal of the power supply voltage detection circuit (10), and its output terminal is connect...
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