DC low-voltage double-push injection phase-locking power synthesis high-pressure sodium lamp
A technology of injecting phase-locked and high-pressure sodium lamps, which is applied in the direction of electric light sources, electrical components, lighting devices, etc., can solve problems such as power imbalance and oscillation voltage phase inconsistency, achieve stable lighting, prolong service life, and avoid device temperature rise Effect of Oscillation Frequency Variation on Power Imbalance
Active Publication Date: 2014-10-15
浙江龙鹰光电科技有限公司
View PDF4 Cites 0 Cited by
- 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
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0023] Embodiment DC low-voltage power supply voltage is 30V, inverter current is 2.8A, double-push output power is synthesized to match 70W high-pressure sodium lamp G, inverter efficiency is 83%, and the light is stable for a long time without flickering.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to the technical field of electric light source illumination and especially relates to a DC low-voltage double-push injection phase-locking power synthesis high-pressure sodium lamp. A self-oscillation chip 4 and a self-oscillation chip 6 are connected with a timing resistor R2 and a timing capacitor C4 for synchronous oscillation. The self-oscillation chip 4 and a push-pull inverter A output power transformer T1 and the self-oscillation chip 6 and a push-pull inverter B output power transformer T2 are subjected to the power synthesis through an addition coupler, and the synthesized power is subjected to voltage boost and then is fed to a tube trigger circuit for starting the high-pressure sodium lamp. Reference crystal oscillator signals are input to RC oscillators of the self-oscillation chip 4 and the self-oscillation chip 6 through a frequency divider for phase locking, so that luminance declination caused by power unbalance resulted from oscillation frequency change since temperature rise of a device is too high is avoided. Sawtooth signals output by a frequency modulation signal generator are input to the RC oscillators of the two self-oscillation chips 4 and 6 for suppressing lamp flickering in a frequency modulation manner. The high-pressure sodium lamp in the invention is suitable for high-pressure sodium lamp lighting occasions with DC low voltage and large current for power supply.
Description
technical field [0001] The invention relates to the technical field of electric light source lighting, in particular to a DC low-voltage double-push injection phase-locked power synthesis high-pressure sodium lamp. Background technique [0002] In the prior art, electronic ballasts generally use LC or RC oscillators as high-pressure sodium lamp light sources, and the oscillation frequency generated is affected by poor stability of temperature changes, and the power is unstable and the light intensity decreases. Although the structure is simple and the cost is low. Due to the low power supply voltage, it is necessary to increase the device current to obtain high-power lighting, so that 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 curre...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H05B41/292
Inventor 阮树成张妙娟
Owner 浙江龙鹰光电科技有限公司