71results about How to "Avoid Oscillation Frequency Variation Power Imbalance" patented technology

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.

The invention relates to the technical field of electric light source lighting, and particularly relates to a dual-full-bridge injection phase-locking power synthesis neon lamp. Two RC oscillators are both connected to a resistor R11 and a capacitor C14 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 adding coupler in opposite phases; synthesized power, booster voltage and rectified current are fed into a lamp tube; 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 the power and reduction of the lamplight; and lamp tube abnormal current detector signals are connected to SD ends of the oscillators of the two self-oscillation chips, thereby controlling quick stop of the oscillation so as to turn off a power tube of the full-bridge inverter. The dual-full-bridge injection phase-locking power synthesis neon lamp is applied to commercial decoration large-power neon lamp advertizing lighting.

The invention relates to the technical field of electric light source illumination and specifically discloses a solar power supply double-push injection-locking power synthesis fluorescent lamp. Two self-sustained oscillation chips 4, 6 are together connected to a timing resistor R2 and a capacitor C4 for synchronous oscillation. A self-sustained oscillation chip 4, an output power transformer T1 of a push-pull amplifier A, a self-sustained oscillation chip 6, and an output power transformer T2 of a push-pull amplifier B are fed into an addition coupler for power synthesis. The synthesized power is fed into a lamp tube for turning the lamp tube on. Signals of a reference crystal oscillator are injected into RC oscillators of the two self-sustained oscillation chips 4, 6 through a frequency divider for phase locking. Excessive temperature rise of the device, changes of oscillation frequency, imbalanced power and dim light are avoided. The fluorescent lamp is suitably used in illumination occasions as a fluorescent lamp powered by a solar low-voltage heavy-current power supply.

The invention relates to the technical field of electric light source lighting, and particularly relates to a DC low-voltage power supply injection locking power synthesis dimming fluorescent lamp which comprises a fluorescent lamp tube, a DC low-voltage power supply, a reference crystal oscillator, a phase dimming chip, a push-pull amplifier, a push-pull oscillator and a power synthesis coupler, wherein output of the phase dimming chip and the voltage controlled oscillator (VCO) is connected to the push-pull amplifier and fed into an adding coupler through a transformer T1 and a transformer T3 of the push-pull oscillator; synthesized power and booster voltage are matched with and turn on the lamp tube; reference crystal oscillator signals are injected to the voltage controlled oscillator (VCO) through a frequency divider to lock the phase; the transformer T1 of the push-pull amplifier and the transformer T3 of the push-pull oscillator carry out power synthesis, cross coupling and injection locking, and frequency pulling is coherent with the push-pull oscillator to lock the phase synchronously; and large-power lighting is acquired, thereby avoiding too high temperature rise of devices, changes in oscillation frequency, unbalance of the power and reduction of the lamplight. The DC low-voltage power supply injection locking power synthesis dimming fluorescent lamp is applied to dimming fluorescent lamp lighting occasions with DC low voltage and large-current power supply.

The invention relates to the technical field of electric light source lighting, in particular to a solar energy power source double half-bridge injection locked power synthesis black light lamp. The lamp comprises a solar power source, a black light lamp tube, a standard crystal oscillator, a frequency divider, a self-oscillation chip 4, a self-oscillation chip 6, a half-bridge inverter A, a half-bridge inverter B and a phase adding coupler. Two RC oscillators are jointly connected with a resistor R3 and a capacitor C5 to generate synchronous oscillation, namely, one is an output power transformer T1 of the self-oscillation chip 4 and the half-bridge inverter A, and the other is an output power transformer T2 of the self-oscillation chip 6 and the half-bridge inverter B; power synthesis and boost are conducted through the phase adding coupler; the signals are connected to the lamp tube, and the lamp tube is started. Signals of the standard crystal oscillator are injected into the RC oscillators of the self-oscillation chip 4 and the self-oscillation chip 6 through the frequency divider, then phase positions are locked, so that the phenomena that temperature of components is too high, oscillation frequency changes, power is unbalanced, and light dims are avoided. The solar energy power source double half-bridge injection locked power synthesis black light lamp is suitable for a farmland and an orchard to induce and kill pests.

The invention relates to the technical field of electric light source illumination and specifically discloses a solar power supply injection phase-locking power synthesis metal halide lamp. The metal halide lamp comprises a metal halide lamp tube, a solar power supply, a reference crystal oscillator, an oscillation driving chip, a push-pull amplifier, a push-pull oscillator, an addition coupler, a lamp tube trigger circuit, a frequency modulation signal generator and a lamp tube abnormal current detector. The oscillation driving chip is connected with the push-pull amplifier. Power synthesis is carried out on an output power transformer T1 and a push-pull oscillator output power transformer T3 through the addition coupler, and the synthesized power further undergoes voltage boost and is then fed into the lamp tube trigger circuit for turning the metal halide lamp tube on. Signals of the reference crystal oscillator are injected into the oscillation driving chip through a frequency divider for phase locking. After the power synthesis of the push-pull amplifier output power transformer T1 and the push-pull oscillator output power transformer T3, a cross-coupling injection-locking frequency pulls the push-pull oscillator to realize coherent synchronous phase locking, and thus large-power illumination is achieved, and luminance declination caused by power unbalance resulted from oscillation frequency change since temperature rise of a device is too high is avoided. The metal halide lamp is suitable for illumination occasions of the metal halide lamp powered by the solar power supply in a low-voltage and heavy-current manner.

The invention relates to the technical field of electric light source lighting, in particular to a DC low-voltage power supply four-push-pull injection lock power synthesis high-pressure sodium lamp. Self-oscillating chip A push-pull inverter A' output power transformer T 1 With self-oscillating chip B push-pull inverter B' output power transformer T 2 Feeds into summing coupler TB 1 , self-oscillating chip C push-pull inverter C' output power transformer T 3 With self-oscillating chip D push-pull inverter D' output power transformer T 4 Feeds into summing coupler TB 2 , summing coupler TB 1 with summing coupler TB 2 Feeds into summing coupler TB 3 Power synthesis, boost feeding lamp trigger circuit lamp start, reference crystal oscillator signal is injected into four self-oscillating chips through the frequency divider to lock the phase to stabilize the output power, to avoid excessive temperature rise of the device, oscillation frequency change, power imbalance, light drop, frequency modulation signal The sawtooth signal of the generator is connected to four self-oscillating chips for frequency modulation to suppress light flickering, and the signal of the abnormal current detector of the lamp tube is connected to the SD end of the four self-oscillating chips to protect the power tube. The invention is suitable for lighting occasions of direct current low-voltage power supply high-pressure sodium lamps.

The invention relates to the technical field of electric light source lighting, in particular to a dual half-bridge injection phase-locked power synthesis electrodeless lamp. Including power filter EMI, rectifier bridge stack, power factor correction APFC, electrodeless lamp, reference crystal oscillator, frequency divider, two self-oscillating chips 4, 6, half-bridge inverter A, half-bridge inverter B, phase Add a coupler, and the RC oscillators of the two self-oscillating chips 4 and 6 are connected to the resistance R 4 , capacitance C 5 Synchronous oscillation, self-oscillating chip 4 and half-bridge inverter A output power transformer T 1 With self-oscillating chip 6 and half-bridge inverter B output power transformer T 2 The reverse phase is fed into the summing coupler, the power synthesis is inductively coupled to the lamp lighting through the magnetic ring, and the reference crystal oscillator signal is injected into the RC oscillators of the two self-oscillating chips 4 and 6 through the frequency divider to lock the phase to obtain high-power lighting and avoid The temperature rise of the device is too high, the oscillation frequency changes, the power is unbalanced, and the light drops. The invention is suitable for lighting occasions of high-power electrodeless lamps.

The invention relates to the technical field of electric light source lighting, in particular to a double half-bridge injection phase-locked light-emitting diode LED array lamp. Including power filter EMI, rectifier bridge stack, power factor correction APFC, light-emitting diode LED array lights, reference crystal oscillator, frequency divider, two self-oscillating chips 4, 6, half-bridge inverter A, half-bridge inverter B , summing coupler, full-wave rectifier, the RC oscillators of the two self-oscillating chips 4 and 6 are connected to the resistance R 11 , capacitance C 15 Synchronous oscillation, self-oscillating chip 4 and half-bridge inverter A output power transformer T 2 With self-oscillating chip 6 and half-bridge inverter B output power transformer T 3 The reverse phase is fed into the summing coupler, and the power synthesis is driven by full-wave rectification to drive the light-emitting diode LED array lamp. The reference crystal oscillator signal is injected into the RC oscillator of the two self-oscillating chips 4 and 6 through the frequency divider to lock the phase to obtain high-power lighting to avoid The temperature rise of the device is too high, the oscillation frequency changes, the power is unbalanced, and the light drops. The invention is suitable for lighting occasions of high-power light-emitting diode LED array lamps.

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.

The invention relates to the technical field of electric light source illumination and specifically discloses a solar power supply injection phase-locking power synthesis neon lamp. The neon lamp comprises a neon lamp tube, a solar power supply, a reference crystal oscillator, an oscillation driving chip, a push-pull amplifier, a push-pull oscillator, an addition coupler and a lamp tube abnormal current detector. The output of the oscillation driving chip is connected with the push-pull amplifier. An output power transformer T1 and a push-pull oscillator output power transformer T3 are fed into the addition coupler for power synthesis, and the synthesized power further undergoes voltage boost and is then accessed to the lamp tube for turning the lamp tube on. 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-locking frequency pulls the push-pull oscillator to realize coherent synchronous phase locking, and thus large-power illumination is achieved, and luminance declination caused by power unbalance resulted from oscillation frequency change since temperature rise of a device is too high is avoided. The neon lamp is suitable for commercial decorative advertisement illumination of neon lamps powered by the solar power supply in a low-voltage and heavy-current manner.

The invention relates to the technical field of electric light sources, in particular to a solar energy power source double-pushing injection locking LED array lamp. Two self-oscillation chips (4 and 6) are jointly connected with a timing resistor element R2 and a timing capacitor element C3 to generate synchronous oscillation, namely, one is the self-oscillation chip 4 and the output power transformer T1 of a push-pull inverter A, and the other is the self-oscillation chip 6 and the output power transformer T2 of a push-pull inverter B; signals are fed into an adding coupler in an anti-phase mode; power synthesis is conducted; the signals are fed to the LED array lamp in a full-wave rectification mode. Signals of a benchmark crystal oscillator are injected into RC oscillators of the two self-oscillation chips (4 and 6) through a frequency divider to enable phase positions to be locked, lamplight descending caused by excessive temperature rising, oscillation frequency changes and power imbalance of a device is avoided, and the service life of the LED array lamp is prolonged. The solar energy power source double-pushing injection locking LED array lamp is suitable for lighting occasions powered by solar energy power sources with the low voltage and the large current.

The invention relates to the technical field of electric light source illumination and specifically discloses a direct-current low-voltage power supply injection-locking power synthesis neon lamp. The neon lamp comprises a neon lamp tube, a direct-current low-voltage power supply, a reference crystal oscillator, an oscillation driving chip, a push-pull amplifier, a push-pull oscillator, an addition coupler and a lamp tube abnormal current detector. The output of the oscillation driving chip is connected to the push-pull amplifier. A power synthesis operation is performed on a transformer T1 and a push-pull oscillator transformer T3 through the addition coupler. The synthesized power further undergoes a voltage boost and is then accessed to the lamp tube for turning the lamp tube on. 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 power synthesis of the push-pull amplifier transformer T1 and the push-pull oscillator transformer T3, a cross-coupling injection-locking frequency pulls a coherent synchronous locking phase to achieve large-power illumination. Excessive temperature rise of the device, changes of oscillation frequency, imbalanced power and dim light are avoided. The neon lamp is suitably used in commercial decorative illumination occasions as a neon lamp powered by a direct-current low-voltage heavy-current power supply.