Direct-current low-voltage power supply injection locking power synthesis dual halogen lamp

Abstract

The invention relates to the electric light source illumination technology field, particularly to a direct-current low-voltage power supply injection locking power synthesis dual halogen lamp. The halogen lamp comprises two halogen lamp tubes, a direct-current low-voltage power supply, a reference crystal oscillator, an oscillation driving chip, a push-pull amplifier, a push-pull oscillator, and an addition coupler. The output of the oscillation driving chip is connected with the push-pull amplifier; power synthesis of a push-pull amplifier transformer T1 and a push-pull oscillator transformer T3 is carried out by the addition coupler; and the two halogen lamp tubes are matched to realize ignition. A signal of the reference crystal oscillator is injected into an RC oscillator of the oscillation driving chip by a frequency divider to lock a phase; and the push-pull amplifier transformer T1 and the push-pull oscillator transformer T3 carry out coherent and synchronous phase locking under power synthesis cross-coupling injection locking frequency pulling so as to obtain high-power irradiation, thereby avoiding high temperature rising of the device, oscillation frequency changing, power unbalancing, and lamplight reduction. According to the invention, the halogen lamp is suitable for commercial decoration irradiation occasions needing halogen lamps with direct currents, low voltages and heavy-current power supplying.

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 injection-lock power synthesis double-halogen lamp. Background technique [0002] Electronic ballasts in the prior art usually use LC or RC oscillators as the light source for halogen lamps, and the oscillation frequency generated is affected by poor stability of temperature changes. , although this electronic ballast is simple in structure and low in cost. Due to the low power supply voltage, it is necessary to increase the device current 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 temperature rises and t...

AI Technical Summary

Problems solved by technology

[0002] Electronic ballasts in the prior art usually use LC or RC oscillators as the light source for halogen lamps, and the oscillation frequency generated is affected by poor stability of temperature changes. , although this electronic ballast is simple in structure and low in cost

Due to the low power supply voltage, it is necessary to increase the device current 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 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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