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DC low-voltage double-push injection phase-locking light-emitting diode LED array lamp

A light-emitting diode and LED array technology, which is applied in the direction of converting DC power input to DC power output, light source, electric light source, etc., can solve the problems of inconsistent oscillation voltage phase and power imbalance, achieve stable lighting, prolong service life, and avoid The Effect of Power Imbalance on Oscillating Frequency Variation of Device Temperature Rise

Inactive Publication Date: 2014-10-15
张妙娟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the phases of the power synthesis oscillation voltage are inconsistent, and the power of the nonlinear interaction is unbalanced, which needs technical improvement

Method used

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  • DC low-voltage double-push injection phase-locking light-emitting diode LED array lamp
  • DC low-voltage double-push injection phase-locking light-emitting diode LED array lamp
  • DC low-voltage double-push injection phase-locking light-emitting diode LED array lamp

Examples

Experimental program
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Effect test

Embodiment

[0020] Embodiment The DC power supply voltage is 30V, the inverter current is 3A, and the double-push output power is combined to match the 75W light-emitting diode LED array lamp RL, the inverter efficiency is 83%, the light is stable, and the service life is long.

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Abstract

The invention relates to the technical field of electric light source lighting and specifically relates to a DC low-voltage double-push injection phase-locking light-emitting diode LED array lamp. A self-oscillation chip 4 and a self-oscillation chip 6 are connected with a timing resistor R2 and a timing capacitor C4 for synchronous oscillation. Power synthesis of the self-oscillation chip 4 and a push-pull inverter A output power transformer T1 and the self-oscillation chip 6 and a push-pull inverter B output power transformer T2 are realized through an addition coupler and the power is fed to the light-emitting diode LED array lamp. Reference crystal oscillator signals are input to RC oscillators of the self-oscillation chip 4 and the self-oscillation chip 6 through a frequency divider for phase locking, so that luminance declination caused by power unbalance resulted from oscillation frequency changes since temperature rise of a device is too high is avoided. The DC low-voltage double-push injection phase-locking light-emitting diode LED array lamp is suitable for LED array lamp lighting occasions with DC low voltage and large current for power supply.

Description

technical field [0001] The invention relates to the technical field of electric light source lighting, in particular to a DC low-voltage double injection lock light-emitting diode LED array lamp. Background technique [0002] In the prior art, electronic transformers generally use LC or RC oscillators as the light source of light-emitting diode LED array lamps. The oscillation frequency generated is affected by poor stability of temperature changes, and the power is unstable and the light intensity drops. Although the structure is simple and the cost is low. Due to the low power supply voltage, it is necessary to increase the device current to obtain high-power lighting, so that the power consumption of the power tube will increase sharply and the temperature will rise too high, resulting in a change in the oscillation frequency. As a result, the power amplitude of the light will be unbalanced as the frequency changes. At the same time, when the large current passes through ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B37/02H02M3/337
Inventor 阮树成张妙娟
Owner 张妙娟
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