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DC low voltage power supply four push-pull injection lock light-emitting diode led array lights

A DC low-voltage power supply and light-emitting diode technology, applied in the direction of electric light source, lamp circuit layout, light source, etc., can solve the problems of power imbalance, oscillation voltage phase inconsistency, etc., achieve stable lighting, prolong service life, and avoid device temperature rise Effect of Oscillating Frequency Variation on Power Imbalance

Inactive Publication Date: 2017-12-01
唐山宏阔科技有限公司
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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 nonlinear intermodulation affects the power imbalance, which needs technical improvement

Method used

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  • DC low voltage power supply four push-pull injection lock light-emitting diode led array lights
  • DC low voltage power supply four push-pull injection lock light-emitting diode led array lights
  • DC low voltage power supply four push-pull injection lock light-emitting diode led array lights

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Embodiment Construction

[0015] refer to figure 1 , 2 , 3, 4( image 3Taking the push-pull inverter A' circuit of the self-oscillating chip A as an example, and the rest of the circuits are the same), the specific implementation mode and embodiment of the present invention include a DC low-voltage power supply 11, a light-emitting diode LED array lamp 9, a reference crystal oscillator 12, and a frequency divider 13. Self-oscillating chip A1, self-oscillating chip B2, self-oscillating chip C3, self-oscillating chip D4, push-pull inverter A', push-pull inverter B', push-pull inverter C', push-pull inverter Device D', adding coupler TB 1 5. Adding coupler TB 2 6. Adding coupler TB 3 7. Full-wave rectification circuit 8. Lamp abnormal current detector 10, wherein the reference crystal oscillator 12 is composed of a quartz crystal resonator JT, six inverters, resistors and capacitors, and an inverter IC 1-1 The bias resistor R is connected across the input and output terminals 1 , and connected to th...

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PUM

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Abstract

The invention relates to the technical field of electric light source lighting, in particular to a DC low-voltage power supply four-push-pull injection lock light-emitting diode LED array lamp. Self-oscillating chip A push-pull inverter A' output power transformer T1 and self-oscillating chip B push-pull inverter B' output power transformer T2 feeds into summing coupler TB1, self-oscillating chip C push-pull inverter C' The output power transformer T3 and the self-oscillating chip D push-pull inverter D' output power transformer T4 are fed into the summing coupler TB2, and the summing coupler TB1 and the summing coupler TB2 are fed into the summing coupler TB3, and the power synthesis is complete The wave rectification is connected to the lamp tube, and the reference crystal oscillator signal is injected into four self-oscillating chips through the frequency divider to lock the phase to stabilize the output power, so as to avoid excessive temperature rise of the device, oscillation frequency change, power imbalance, and light drop, and the abnormal current detector signal of the lamp tube is connected to four The SD end of the self-oscillating chip protects the power tube. The invention is suitable for lighting occasions of DC low-voltage power supply and high-power light-emitting diode LED array lamps.

Description

technical field [0001] The invention relates to the technical field of electric light source lighting, in particular to a DC low-voltage power supply four-push-pull injection lock light-emitting diode LED array lamp. Background technique [0002] Electronic transformers in the prior art usually use LC or RC oscillators as the light source for light-emitting diode LED array lamps. The oscillation frequency generated is affected by poor temperature stability and the power is not stable enough, resulting in a decrease in light intensity. Although the structure is simple and the cost is low. However, in order to obtain high-power lighting, the current of the device must be increased, and the power consumption of the oscillating 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 curren...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B37/02
Inventor 阮树成
Owner 唐山宏阔科技有限公司
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