NOS operating mode load voltage self-adapting series LED lamps with ribbed sectional bar structure

A load voltage, LED lamp technology, applied in constant current output circuit, LED array drive circuit, active power factor compensation circuit, LED lamp field, can solve the problem of output not contributing and achieve the effect of reducing power consumption

Inactive Publication Date: 2010-08-25
宋建国
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The electric energy absorbed by the snubber circuit is all consumed and does not contribute to the output

Method used

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  • NOS operating mode load voltage self-adapting series LED lamps with ribbed sectional bar structure
  • NOS operating mode load voltage self-adapting series LED lamps with ribbed sectional bar structure
  • NOS operating mode load voltage self-adapting series LED lamps with ribbed sectional bar structure

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Abstract

The invention discloses a series of LED lamps, aiming at providing the high efficiency and simple structure LED lamp with the high conversion-efficiency circuit operating mode, namely NOS mode (dead-beat switching mode). The circuit consists of a voltage source circuit, a load (an LED array) and a constant-current circuit, wherein the constant-current circuit consists of a constant-current control circuit, a base current circuit and a load voltage self-adapting circuit; the voltage source circuit operates in the NOS mode; and with regard to the structure, ribbed sectional bars are used as a major structure, thereby having simple configuration, good heat dissipation effect and low manufacturing cost. The disclosed NOS operating mode can be widely applied to a switch power circuit; and the load voltage self-adapting circuit can be widely applied to a constant-current output circuit.

Description

NOS working mode load voltage self-adaptive series LED lights with ribbed profile structure technical field The invention relates to a switching power supply circuit, that is, an AC-DC (alternating current-direct current) conversion circuit, including a PFC (power factor compensation) circuit and a DC-DC (direct current-direct current) conversion circuit. For the power factor compensation circuit, more specifically, it involves the active power factor compensation circuit; for the DC-DC conversion circuit, more specifically, it involves the working mode of the DC-DC conversion circuit and the DC-DC conversion circuit. Start-up circuit, power feed (that is, power supply for a complete set of control circuits) circuit, low-power voltage regulator circuit, current measurement and control circuit, voltage measurement and control circuit, and buffer circuit. The present invention also relates to an LED (light emitting diode) array drive circuit, more specifically, to a constant c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S2/00F21V17/10F21V19/00F21V23/00H05B37/02F21Y101/02
Inventor 宋建国
Owner 宋建国
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