Low-power high-voltage rapid starting circuit

Abstract

The present invention relates to the field of the electronic technology, especially to a low-power high-voltage rapid starting circuit. The circuit can achieve rapid starting and low power at the sametime, and comprises a resistor R1 and a resistor R2. One end of the resistor R1 and one end of the resistor R2 are connected with a high-voltage source HV, the other end of the resistor R1 is connected with one end of a capacitor C0, a cathode of a diode D2 and a gate electrode of an NMOS switch tube Q1, a node is an enabling end of an IC drive chip, an anode of the diode D2 and the other end ofthe capacitor C0 are earthed, a drain electrode of the NMOS switch tube Q1 is connected with the other end of the resistor R2, a source electrode of the NMOS switch tube Q1 is connected with one end of a capacitor C1, a cathode of the diode D1 and a power supply VCC, and the anode of the diode D1 and the other end of the capacitor C1 are earthed.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a low-power high-voltage quick-start circuit. Background technique [0002] Today's high-voltage start-up circuit, its fast start-up speed and low power consumption are contradictory, that is, the start-up speed is fast, and the corresponding power consumption will also increase, such as the driver IC chip in the LED lamp, although the start-up speed becomes faster , but its own power consumption increases. If the power consumption is reduced, the startup speed will be correspondingly slower. Contents of the invention [0003] In order to solve the above problems, the present invention provides a low-power high-voltage quick-start circuit, which can realize quick start and low power consumption at the same time. [0004] Its technical solution is as follows: a low-power high-voltage quick-start circuit, characterized in that it includes a resistor R1 and a resistor R2, one...

AI Technical Summary

Problems solved by technology

[0002] Today's high-voltage start-up circuit, its fast start-up speed and low power consumption are contradictory, that is, the start-up speed is fast, and the corresponding power consumption will also increase, such as the driver IC chip in the LED lamp, although the start-up speed becomes faster , but its own power consumption increases. If the power consumption is reduced, the startup speed will be correspondingly slower.

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