Voltage protection circuit-based adjustable voltage stabilization power supply for electrodeless fluorescent lamp
A technology for electrodeless fluorescent lamps and voltage protection, applied in electric light sources, light sources, electrical components, etc., can solve problems such as voltage instability, achieve stable working voltage, ensure stability and reliability, and prolong service life
Inactive Publication Date: 2018-02-23
CHENGDU JIESHENG TECH CO LTD
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Problems solved by technology
[0004] The purpose of the present invention is to overcome the defect that the output voltage of the power supply of the electrodeless fluorescent lamp in the prior art is unstable, and to provide an adjustable voltage stabilized power supply for electrodeless fluorescent lamps based on a voltage protection circuit
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[0021] Such as figure 1 As shown, the present invention mainly consists of a transformer T1, a diode rectifier U, a pulse transformer circuit, a three-manifold adjustable voltage stabilizing circuit connected to the negative output terminal of the diode rectifier U, and the positive pole is connected to the positive output terminal of the diode rectifier U , the polarity capacitor C1 whose negative pole is connected to the negative output terminal of the diode rectifier U, the N pole is connected to the positive output terminal of the diode rectifier U after passing through the resistor R1, and the P pole is connected to the three-manifold adjustable voltage regulator circuit. The voltage diode D1, the source amplifier circuit connected with the positive output terminal and the negative output terminal of the diode rectifier U respectively, the buffer trigger circuit connected in series between the source amplifier circuit and the pulse transformer circuit, and the buffer trigg...
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The invention discloses a voltage protection circuit-based adjustable voltage stabilization power supply for an electrodeless fluorescent lamp. The voltage protection circuit-based adjustable voltagestabilization power supply is characterized by mainly comprising a transformer T1, a diode rectifier U, a triode adjustable voltage stabilization circuit, a pulse transformation circuit, a polarization capacitor C1, a voltage stabilization diode D1, a source amplification circuit, a buffer trigger circuit and a voltage protection circuit, wherein the source amplification circuit is connected witha positive output end and a negative output end of the diode rectifier U, the buffer trigger circuit is connected in series between the source amplification circuit and the pulse transformation circuit, and the voltage protection circuit is connected in series between the buffer trigger circuit and the pulse transformation circuit. By the voltage protection circuit-based adjustable voltage stabilization power supply, a voltage can be modulated to a high-frequency pulse width voltage, an output pulse peak is maintained stable after transformation of the pulse transformer, so that the output voltage is consistent with a rated starting voltage of the electrodeless fluorescent lamp, and a stable voltage is enabled to be output.
Description
technical field [0001] The invention relates to a power supply for an electrodeless fluorescent lamp, specifically, an adjustable and stabilized voltage supply for an electrodeless fluorescent lamp based on a voltage protection circuit. Background technique [0002] Electrodeless fluorescent lamps, that is, electrodeless lamps, cancel the filaments and electrodes of traditional fluorescent lamps, and use the principle of electromagnetic coupling to excite mercury atoms from the original state to excited states. Good color rendering and other advantages. Before the electrodeless fluorescent lamp is lit or the arc burns, it has a high input impedance, so to light the electrodeless fluorescent lamp, a stable high voltage is required as the rated starting voltage. However, the existing electrodeless fluorescent lamp power supply has the problem of unstable output voltage, which causes flickering when the electrodeless fluorescent lamp is started, resulting in too long start-up ...
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IPC IPC(8): H02M9/06H02M1/32H05B41/30
CPCH02M1/32H02M11/00H05B41/30H02M1/0038
Inventor 王丹
Owner CHENGDU JIESHENG TECH CO LTD