Solar power supply four-push-pull injection locking power synthesis halogen lamp bank

Abstract

The invention relates to the technical field of electric power source lighting, and particularly relates to a solar power supply four-push-pull injection locking power synthesis halogen lamp bank. A self-oscillation chip A, an output power transformer T1 of a push-pull inverter A', a self-oscillation chip B and an output power transformer T2 of a push-pull inverter B' are fed into an adding coupler TB1, a self-oscillation chip C, an output power transformer T3 of a push-pull inverter C', a self-oscillation chip D and an output power transformer T4 of a push-pull inverter D' are fed into an adding coupler TB2, the adding coupler TB1 and the adding coupler TB2 are fed into an adding coupler TB3 to synthesize power, and the synthesized power is fed into a lamp tube circuit to light on the halogen lamp bank. Reference crystal oscillator signals are injected into the four self-oscillation chips through a frequency divider to lock the phase so as to output power stably, thereby avoiding too high temperature rise of devices, changes in oscillation frequency, unbalance of the power and reduction of the lamplight. Lamp tube abnormal current detector signals are connected to SD ends of the four self-oscillation chips to protect a power tube. The solar power supply four-push-pull injection locking power synthesis halogen lamp bank is applied to large-power halogen lamp bank commercial decoration irradiation occasions.

Description

technical field [0001] The invention relates to the technical field of electric light source lighting, in particular to a solar power four-push-pull 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. 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 co...

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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

In order to obtain high-power lighting, the current of the device must be increased, 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 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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