Solar power supply injection phase-locking light-emitting diode LED array lamp

Abstract

The invention relates to the technical field of electric light source illumination and specifically discloses a solar power supply injection phase-locking light-emitting diode LED array lamp. The solar power supply injection phase-locking light-emitting diode LED array lamp comprises a light-emitting diode LED array lamp, a solar power supply, a reference crystal oscillator, an oscillation driving chip, a push-pull amplifier, a push-pull oscillator, an addition coupler, a full-wave rectifier circuit, and a lamp tube abnormal current detector. The output of the oscillation driving chip is connected with the push-pull amplifier. Power synthesis operation is performed on an output power transformer T1 and a push-pull oscillator output power transformer T3 through the addition coupler, and the synthesized power is connected to the lamp tube through the full-wave rectifier circuit. Signals of the reference crystal oscillator are injected into an RC oscillator of the oscillation driving chip through a frequency divider for phase locking. After the power synthesis of the push-pull amplifier transformer T1 and the push-pull oscillator transformer T3, a cross-coupling injection phase-locking frequency pulls coherent synchronous phase locking to achieve large-power illumination, and luminance declination caused by power unbalance resulted from oscillation frequency change since temperature rise of a device is too high is avoided. The light-emitting diode LED array lamp is suitable for commercial decoration illumination of light-emitting diode LED array lamps powered by the solar power supply in a low-voltage heavy-current manner.

Description

technical field [0001] The invention relates to the technical field of electric light source lighting, in particular to a solar power supply injection lock light-emitting diode LED array lamp. Background technique [0002] In the prior art, LC or RC oscillators are usually used as the light source for light-emitting diode LED array lamps. The oscillation frequency generated is poorly stabilized by temperature changes, which affects power instability and reduces light intensity. Although the structure is simple and the cost is low. However, if the power supply voltage is low, the device current must be increased to obtain high-power lighting, resulting in a sharp increase in the power consumption of the oscillating power tube and an excessively high temperature rise, 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 the coil, the...

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Problems solved by technology

[0002] In the prior art, LC or RC oscillators are usually used as light-emitting diode LED array light sources, and the oscillation frequency generated is poorly stabilized by temperature changes, which affects power instability and light intensity drops. Although the structure is simple and the cost is low

However, if the power supply voltage is low, the current of the device must be increased to obtain high-power lighting, resulting in a sharp increase in the power consumption of the oscillating power tube and an excessive temperature rise, resulting in a change in the oscillating 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 the coil, the temperature rises and the magnetic permeability decreases, and the magnetic saturation inductance becomes smaller and the impedance tends to zero. The working time of the lamp is proportional to the temperature rise, and the temperature rise accelerates the aging of the device. Burning out components shortens service life

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