LED lamp power supply capable of reducing power at regular time

Abstract

The invention provides an LED lamp power supply capable of reducing power at a regular time. The LED lamp power supply comprises a fuse F1, a rectifier transformer L1, a capacitor CX1, a filter U, a rectifier transformer L3, a sliding resistor VR2, a diode D, a resistor R4, a filter capacitor C3, a triode DW, a PWM regulator U1M and a resistor R6, wherein the right end of the fuse F1 is connected with the rectifier transformer L1; the right end of the rectifier transformer L1 is connected with the capacitor CX1; the filter U is mounted at the right end of the capacitor CX1; the right end of the filter U is connected with the rectifier transformer L3; the right end of the rectifier transformer L3 is connected with the sliding resistor VR2; through such a design, protection for the main body of a circuit is achieved; the right end of the diode D is connected with the resistor R4 and the filter capacitor C3 respectively; the right end of the resistor R4 is connected with the triode DW and the PWM regulator U1M respectively; the right end of the PWM regulator U1M is connected with the resistor R6; through such a design, regulation of the output power of a LED lamp L5 is achieved. The LED lamp power supply is convenient to operate, can protect the circuit, can carry out intelligent control, and is convenient to detach, good in stability and high in reliability.

Description

technical field [0001] The invention is a power supply for LED lamps with timing power reduction, which belongs to the field of LED lamp power supply equipment. Background technique [0002] LED power supply is a kind of power supply. It is a device that provides power to electronic equipment, also known as a power supply. It is deployed as a different power input on the device connected to an independent circuit device with two or three power inputs. Dry batteries, etc. are also called power supplies; devices that convert alternating current into direct current through transformers and rectifiers are called rectified power supplies. [0003] In the prior art, there is no short-circuit protection mechanism installed in the traditional traditional LED lamp power supply, resulting in that the circuit cannot be automatically shut down and cannot automatically alarm when the circuit is short-circuited, which will easily lead to damage to the main components of the circuit, incre...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, there is no short-circuit protection mechanism installed in the traditional traditional LED lamp power supply, resulting in that the circuit cannot be automatically shut down and cannot automatically alarm when the circuit is short-circuited, which will easily lead to damage to the main components of the circuit, increase the production cost, and easily Cause a fire, the traditional LED lamp power supply does not have a timing power reduction mechanism, resulting in the LED lamp usually using a constant power to work, resulting in the inability to intelligently regulate the LED lamp power supply, increasing energy loss, wasting non-renewable energy, and increasing pollution to the environment

Images