Electromagnetic inductive lamp circuit

An electromagnetic induction lamp and circuit technology, which is applied in the layout of electric lamp circuits, electric light sources, electrical components, etc., can solve problems such as poor reliability, inability to use 12V/24V DC input for circuits, and drive square wave distortion.

Inactive Publication Date: 2005-09-28
江苏立德照明产业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above circuit is composed of discrete components, the circuit stability is poor, and there is no open circuit or short circuit protection.
And the driving square wave is distorted, which is not good for the normal use of the triode 100, 101, the temperature rises, the reliability is not good, and the s

Method used

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Embodiment Construction

[0035] The technical solution of the present invention will be further described below in conjunction with the drawings and embodiments.

[0036] figure 2 It is a circuit block diagram of an embodiment 200 of the electromagnetic induction lamp circuit of the present invention. Such as figure 2 As shown,

[0037] The circuit 200 includes a polarity controller 201, which is connected to the input power supply, and is used to protect the electronic ballast, prevent the positive and negative poles from being connected incorrectly, and is coupled with the half-bridge inverter 203; the half-bridge inverter 203 is connected to the power supply The central controller 202 is coupled to and controlled by it; the half-bridge inverter 203 inverts the power input and is connected to the coupling booster 205 through the DC-blocking coupler 204. The coupling booster 205 is used to increase the voltage and boost the voltage. The high voltage is rectified by the rectifier 206. In this embodimen...

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PUM

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Abstract

The present invention discloses an electromagnetic induction lamp circuit which is connected with power supply and can be used for converting DC input into AC output to drive lamp tube of electromagnetic induction lamp. Said circuit includes the following circuits: boost-up rectification circuit, voltage-stabilizing circuit, oscillating circuit and start-up circuit. Said invention also provides the concrete action of the above-mentioned every circuit. Besides, said invented circuit also has overcurrent and overvoltage protection devices, and said invention can utilize power supply control processor to raise constance of light and service life of light source.

Description

Technical field [0001] The invention relates to an electromagnetic induction lamp circuit, in particular to an electromagnetic induction lamp circuit used for a DC 12V / 24V power supply. Background technique [0002] Electromagnetic induction lamps are a new generation of energy-saving products with high luminous efficiency and long life. They have outstanding advantages in emergency lamps and solar lighting. Since the electromagnetic induction lamp has no filament, in the application of low-voltage DC power supply, it can completely avoid the blackening of the DC electronic energy-saving lamp and the very short life of the lamp. When the low-voltage DC electronic energy-saving lamp is in use, when the power supply voltage is low, there is glow discharge when the filament of the lamp is started, and the lamp decays and has a short life. [0003] figure 1 It is a partial circuit diagram of an electronic energy-saving lamp in the prior art. As shown in the figure, the input from t...

Claims

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Application Information

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IPC IPC(8): H05B41/282H05B41/285H05B43/00
Inventor 李维德
Owner 江苏立德照明产业有限公司
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