Solar Power Dual Full Bridge Injection Lock Power Combination Halogen Lamp Group

Abstract

The invention relates to the technical field of electric light source lighting, and particularly relates to a solar power supply dual-full-bridge injection locking power synthesis halogen lamp bank. Two RC oscillators are both connected with a resistor R3 and a capacitor C4 and oscillate synchronously; a self-oscillation chip 4, an output power transformer T1 of a full-bridge inverter A, a self-oscillation chip 6 and an output power transformer T2 of a full-bridge inverter B are fed into an addition coupler in opposite phases; power synthesis is matched with a halogen lamp bank; reference crystal oscillator signals are injected into the RC oscillators of the two self-oscillation chips 4, 6 to lock the phase; and large-power lighting is acquired, thereby avoiding too high temperature rise of devices, changes in oscillation frequency, unbalance of power and reduction of the lamplight. Lamp tube abnormal current detector signals are connected to SD ends of the oscillators of the two self-oscillation chips through a triode, thereby controlling quick stop of oscillation so as to turn off a power metal oxide semiconductor (MOS) field effect transistor of the full-bridge inverter. The solar power supply dual-full-bridge injection locking power synthesis halogen lamp bank is applied to commercial decoration large-power halogen lamp lighting.

Description

technical field [0001] The invention relates to the technical field of electric light source lighting, in particular to a solar power supply double full bridge injection lock power synthesis halogen lamp group. Background technique [0002] In the prior art, an LC or RC oscillator is usually used as the electric light source of the halogen lamp group. The oscillation frequency generated is affected by the poor stability of temperature changes 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, which will cause the power consumption of the oscillating power tube to 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 p...

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Problems solved by technology

[0002] In the prior art, LC or RC oscillators are usually used as the electric light source of the halogen lamp group. The oscillation frequency generated is affected by the poor stability of temperature changes 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, which will cause the power consumption of the oscillating power tube to 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 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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