Voltage detection circuit
A voltage detection circuit and voltage detection technology, applied in the direction of measuring current/voltage, voltage divider, measuring device, etc., can solve the problems of increasing the area, increasing the area occupied by the circuit, and slow comparator speed, so as to reduce the circuit area, The effect of reducing the circuit area and providing low-voltage alarm speed
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[0016] Such as figure 2 Shown is a schematic structural diagram of the voltage detection circuit of the embodiment of the present invention. The voltage detection circuit of the embodiment of the present invention includes:
[0017] A resistance detection circuit, the resistance detection circuit is composed of a plurality of resistors connected in series and connected between the detection voltage power supply and ground, the detection voltage power supply is the first voltage power supply vpwr or the second voltage power supply vpwr5, the first voltage It should be lower than the second voltage, that is, the first voltage is low voltage and the second voltage is high voltage, low voltage such as 1.8V is supplied to low voltage devices, and high voltage such as 5V is supplied to high voltage devices. The series resistance of the resistance detection circuit divides the detection voltage power supply and takes out two divided voltages as the first voltage detection terminal ...
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