40 results about "Reverse converter" patented technology

An object of the present invention is to provide a computer power supply in which, by improving the circuit itself, internal heat loss can be reduced, thereby greatly improving efficiency. A partial resonance circuit 8 is constituted by a primary side winding N1 of a high frequency transformer 3, a resonance condenser 7 , and two switching elements Q1, Q2, a secondary side output circuit 4 for driving a load is connected to a secondary side of the high frequency transformer 3 via a winding, and a reverse converter for driving and halting the first switching element and second switching element by causing the respective phases thereof to differ on the basis of a driving signal is provided.

The present invention is a structure of a mechanical diverter. A reverse converter, the input shaft (1) and the eccentric shaft (17) are fixedly connected as one, disconnected from the output shaft (14), and coincide with the axes of the output shaft (14) and the output sleeve (13); The inner rotor (7) and the output shaft (14) of the short-width epicycloidal gear are fixedly connected as one, and the outer rotor (8) of the short-width hypocycloid ring gear, the output disk (9) and the output sleeve (13) The fixed connection is integrated, the inner rotor (7) and the outer rotor (8) respectively mesh with the pin teeth (5) located between them; the column pin (3) is fixed on the front cover (4), and the pin teeth (5) are fixed On the translation disk (6), there are a plurality of pin holes on the translation disk (6). The pin teeth (5) are evenly distributed circumferentially and fixed on the translation disk (6), and the translation disk (6) is installed on a section of the eccentric shaft (17) on the input shaft (1) through a bearing (16). The invention has the advantages of compact structure, reduced volume and reduced weight. The rotational speed of two coaxial and reversed output shafts is lower than that of the input shaft (1), and the lowering multiple corresponds to the number of teeth of the cycloidal gear.

An apparatus for making recording media with audio code images by combining visual images converted from image information and audio code images encoded to be optically readable from audio information relating to the image information. This apparatus includes a monitor for displaying composite images of visual images and audio code images. To transmit to a speaker audio signals corresponding to the audio code images displayed on the monitor, the apparatus has a first audio code image checking function including a pointing device or keyboard, an audio data retriever, an audio reproducer, a speaker and a controller, and a second audio code image checking function including the pointing device or keyboard, audio reproducer, speaker, a reverse converter and controller.

A control circuit for an electroluminescent display in which a high-voltage AC current is supplied from a low-voltage DC source to a capacitive load using a flyback converter and an H-bridge. The capacitive load discharges whenever the polarity of the capacitive load is reversed. This high voltage discharge is stored on the low voltage capacitor, which is then used as an auxiliary power supply for powering the switching elements of the control circuit.

The invention discloses a direct current power transmission system commutation failure fault recovery method. The method comprises the following steps of step1, collecting the direct voltage and the direct current of a direct current power transmission system, and the alternating voltage of an alternating current power grid connected to a reverse converter station; step2, according to an analog quantity collected in step 1, determining whether the direct current power transmission system has a commutation failure fault; step3, If the commutation failure fault occurs, making a rectifier converter station increase a firing angle, and making the reverse converter station trip off a direct current circuit breaker, simultaneously using the commutation failure time accumulator of the reverse converter station to start carrying out timekeeping and accumulate commutation failure time; when waiting set time is up or the commutation failure fault disappears within a certain time, making the rectifier converter station reduce the firing angle, making the reverse converter station reconnect the direct current circuit breaker, trying to restore direct current power to a level before the fault and resetting the commutation failure time accumulator of the reverse converter station. In the invention, the commutation failure fault of the direct current power transmission system can be effectively processed, and a condition that a power fluctuation brought by a direct current continuous commutation failure jeopardizes the safety and stability of the connected alternating current power grid is avoided.

This application describes a driver circuit for providing drive current to an LED lighting scheme. In particular, the present invention relates to an AC input driver circuit operable in conjunction with a current regulator arrangement utilizing a plurality of Zener diodes connected in parallel combinations. The driver circuit includes a feedback mechanism operable to maintain a constant voltage across the current regulator. Embodiments of the present invention seek to address LED ripple, and thus optical flicker, caused by an LED driver connected to an AC power source at its input.

Guided adiabatic bend transitions for multimode fibers are presented to preserve the power of guided light in the fundamental mode while guiding from one level of curvature to another for improved operation of mode filters and fiber amplifiers. A method is provided to find the guidance path. Implementations of these transducers include modal power back converters, and guidance paths into and out of higher order mode filtering devices which work on bending. A spiral structure is shown to incorporate adiabatic bends for a forward-pumped fiber amplifier.

The invention discloses an adjustment device for a digital optical phase-phase inverter, which comprises: a light source module for providing collimated light with a short coherence length; an object stage for placing the digital optical phase-phase inverter; A striped digital camera; a reflective imaging optical path module for adjusting the position of the digital camera; a mirror for switching the optical path between the digital camera and the reflective imaging optical path module; wherein, the entire optical path is centered on the stage The points are distributed in an L-shaped right angle. The invention also discloses a method for adjusting the digital optical phase-phase inverter. Since it is equal-magnitude imaging, only one positioning is required to ensure the relative lateral position coincidence and pixel alignment of the optical phase-phase inverter digital camera and the spatial light modulator. One-to-one correspondence, and gradually increase the number of grids in the checkerboard pattern, so that the border is gradually dense, repeated adjustments, increase the lateral positioning accuracy, in order to ensure the final performance of the digital optical phase inverter.