6 results about "Regenerative circuit" patented technology

A generator with a regeneration device. The electrosurgical generator according to the invention includes an oscillating circuit excited by means of an excitation circuit having a frequency preferably close to its resonant frequency, wherein the oscillation should be periodically interrupted. This can be done, for example, in situations where a pulse-pause modulation of a radio frequency voltage must be created, the fundamental frequency of which, for example, 350 kHz or 500 kHz, can be modulated with a modulation frequency of, for example, 50 kHz. To stop the oscillation in the generator's oscillating circuit as abruptly as possible without losing the energy stored in the oscillating circuit, a regeneration circuit is provided, implemented by means of a voltage multiplier circuit. Compared to a boost converter coupled inductor, it has the advantage of providing a low capacitive load to the oscillating circuit, especially because it is only electrically effectively connected to the oscillating circuit via a switch during the regeneration phase. This concept allows for efficient energy regeneration and therefore allows for precise amplitude modulation of the radio frequency voltage, particularly square wave modulation (on-off-switch).

A burst-mode laser driver includes a driver circuit, a switching circuit, and an energy recycling or harvesting circuit. The driver circuit is adapted to be electrically coupled to a burst-mode laser, the driver circuit configured to control a bias current supplied to the burst-mode laser to change the laser between the burst-on and the burst-off state. The switching circuit is electrically coupled to the driver circuit and adapted to switch the bias current between the laser during a burst-on state and a dummy electrical path during a burst-off state. The energy recycling circuit electrically coupled to the switching circuit and is adapted to harvest at least a portion of energy from the bias current during the burst-off state.

This invention provides an air conditioning circuit and a vehicle, relating to the field of automotive air conditioning circuits. The air conditioning circuit includes a main circuit and a regenerative circuit connected to each other. The main circuit is equipped with a first heat exchanger and a second heat exchanger, and is connected to the passenger compartment and the surrounding environment. The air conditioning circuit includes multiple four-way valves; by changing the connection mode of these four-way valves, the air conditioning circuit can be configured as a cooling circuit or a heating circuit to meet the needs of the passenger compartment for cooling in summer and heating in winter. Furthermore, this air conditioning circuit incorporates a regenerative circuit and can utilize the circulating air from the passenger compartment, thereby reducing compressor power consumption and increasing cooling or heating capacity. This effectively improves the coefficient of performance (COP) under high-temperature conditions in summer and the COP under low-temperature conditions in winter, thus reducing the energy consumption of the air conditioning circuit and improving the overall vehicle economy.

To provide a vibration sample type magnetometer capable of adopting a superconductive electromagnet as an exciting electromagnet, reducing power consumption more than before, and performing highly efficient operation.SOLUTION: In the vibrating sample magnetometer 1, the exciting electromagnet 102 is a superconducting electromagnet, and when the current supplied to the exciting electromagnet 102 is reduced, the magnetic energy of the exciting electromagnet 102 is returned to the battery 106 as a current by the regeneration circuit 110 disposed separately from the control circuit AMP, and the current flowing through the exciting electromagnet 102 is returned to the battery 106 by the control circuit AMP.SELECTED DRAWING: Figure 3

An electric power conversion apparatus includes: first and second electric power terminals; a switching circuit; a transformer; a rectifying circuit; a smoothing circuit including a first inductor and a first capacitor; an electric power regeneration circuit; and a control circuit. The electric power regeneration circuit includes: a first diode including an anode coupled to the rectifying circuit, and a cathode coupled to a first node; a second capacitor having one end coupled to the first node and another end coupled to a reference node; a first regeneration switching device having one end coupled to the first node and another end coupled to a second node; a second regeneration switching device having one end coupled to the second node and another end coupled to the reference node; and a second inductor and a second diode provided on a path coupling the second node and the one end of the first capacitor.

An integrated circuit includes an upper threshold circuit configured to set a logic level of a first enabling signal, a lower threshold circuit configured to set a logic level of a second enabling signal, and a control circuit configured to change an output voltage signal in response to a condition that the logic level of the first enabling signal and the logic level of the second enabling signal are changed consecutively. In the control circuit, a first switch is electrically connected to a second switch at a buffer output node. The control circuit includes a regenerative circuit configured to maintain the output voltage signal at the buffer output node while each of the first switch and the second switch is at a disconnected state.