115 results about "High voltage capacitors" patented technology

To provide a controller of a hybrid vehicle which can suppress a relay selectively connecting between a power storage device and a control unit to drive a motor from being solid-phase bonded.SOLUTION: A controller of a hybrid vehicle comprises: a first motor which converts power of an engine into electric power; a second motor which is driven by the electric power generated by the first motor; a step-up converter which boosts output voltage of a battery to be output to respective motors; a relay which is arranged between the battery and the step-up converter; a low voltage capacitor which is arranged close to the battery side relative to the step-up converter; and a high voltage capacitor which is arranged close to respective motor sides relative to the step-up converter. In a case that conductive state of the relay continues for a predetermined time period or more, voltage of the high voltage capacitor is kept being higher than that of the low voltage capacitor (step S3) and then the relay is switched to a cut-off state (step S6).SELECTED DRAWING: Figure 4

A gate driver circuit to receive an input drive signal and output an output drive signal is provided. The gate driver circuit may include a first capacitor having first and second terminals, a second capacitor having first and second terminals, a first set of switches to selectively couple the first terminals of the first and second capacitors to the input drive signal and a power supply voltage, a second set of switches to selectively couple the second terminals of the first and second capacitors to a reference voltage and a high impedance node, and a comparator having a first terminal coupled to the reference voltage and a second terminal coupled to the high impedance node. The comparator may output the output drive signal based on a comparison of the reference voltage and a voltage at the high impedance node.

The utility model relates to the technical field of capacitors, and discloses a high-frequency miniature high-voltage capacitor, which comprises a first electrode, a second electrode and a base film, a first metal spraying layer is arranged on the left side edge of the base film, a second metal spraying layer is arranged on the right side edge of the base film, the first metal spraying layer is connected with the first electrode, and the second metal spraying layer is connected with the second electrode; a plurality of edge metal coating belts, a plurality of middle metal coating belts and a plurality of non-coating belts are arranged on the base layer film; the edge metal coating strip is provided with a first thickening layer, and the middle metal coating strip is provided with a second thickening layer. By arranging the first thickening area, the contact area between the edge coating belt and the first metal spraying layer is increased, and the conductivity of the edge metal coating belt is improved. And by arranging the second thickening area, the conductivity of the middle metal coating belt is improved. Therefore, the reliability of the capacitor is integrally improved, and the voltage endurance capability of the capacitor is improved.

The present disclosure discloses a distributed capacitance energy absorption verification device, which belongs to the field of direct-current high-voltage surge suppression. The distributed capacitance energy absorption verification device mainly includes a direct-current high-voltage generator, a high-voltage switch, a high-voltage capacitor bank, an isolation transformer, an energy absorption device, a high-voltage sphere gap short-circuit switch and other components. The high-voltage capacitor bank is used for simulating a distributed capacitance, and the high-voltage sphere gap short-circuit switch is used for simulating a short-circuit fault of a direct-current high-voltage system, thereby implementing performance verification of the energy absorption device. The present disclosure has the advantages of accurate and adjustable verification voltage, adjustable pulse capacitor bank capacity, quantitative analysis and the like, and is a reliable device for performance evaluation in the design and manufacturing process of the distributed capacitance energy absorption device.

The invention discloses an electromagnetic ejection seismic source for seismic exploration in a well and an excitation method, which can continuously excite seismic waves, realize flexible output of seismic wave frequency and energy level, meet the requirement of shallow exploration for high-frequency signals in the well and adapt to the requirement of middle and deep layers for low-frequency signals. The seismic source comprises a control system, a shell and an electromagnetic ejection system, the control system is arranged at the top of the shell, the electromagnetic ejection system is arranged in the shell, the electromagnetic ejection system is connected with the control system, and the control system is used for controlling the electromagnetic ejection system, so that the electromagnetic ejection system hammers the well wall from the two sides of the shell at the same time, and the same seismic waves are generated on the well walls on the two sides of the shell at the same time; the excitation method comprises the steps of setting parameters, charging the high-voltage capacitor bank, charging the coil to enable the catapult to move in an accelerated mode, powering off the coil after the catapult reaches a balance position, enabling the hammer body to hammer a well wall when the catapult moves to a limit position, powering on the coil to enable the catapult to move reversely to enable the hammer body to return to an initial position after hammering delay time is reached, and the like.

The utility model belongs to the technical field of high-voltage test equipment, and particularly relates to a high-capacity high-voltage pulse direct-current generator, which comprises a power supply, the power supply is connected with the input side of a voltage regulator through a disconnecting link and a fuse, and the output side of the voltage regulator is connected with the low-voltage side of a boosting transformer. A live wire port of the high-voltage side of the boosting transformer is connected with an anode of the high-voltage rectification silicon stack, a cathode of the high-voltage rectification silicon stack is connected with an anode of the discharge gap ball, a cathode of the discharge gap ball is connected with an anode of a tested device, and a cathode of the tested device is connected with a null line port of the high-voltage side of the boosting transformer. A high-voltage capacitor is connected in parallel between the positive electrode of the discharge gap ball and the negative electrode of the tested equipment, and the high-capacity capacitor unit is formed by connecting two capacitors in parallel, so that compared with the direct purchase of a high-capacity capacitor, not only is the equipment cost reduced, but also the capacity of the capacitor is remarkably improved.

This invention belongs to the field of high-voltage capacitors and discloses a method and related apparatus for evaluating the dielectric loss of high-voltage capacitors. First, by collecting low-voltage dielectric loss data and corresponding rated high-voltage loss data of high-voltage capacitor samples at various voltages and frequencies, a mapping table from low-voltage to high-voltage loss is constructed. Iterative partitioning and optimization of the dividing points are then used to ensure mapping accuracy. This method learns the overall law of loss variation with voltage in a data-driven manner, thereby avoiding the deviation caused by the Garton effect in direct low-voltage measurements and avoiding errors caused by parameter sensitivity in traditional nonlinear fitting. Using this method, high-voltage dielectric loss can be conveniently evaluated in engineering sites using only low-voltage measurements, without the need for high-voltage experimental conditions and professional operators, significantly reducing measurement costs and complexity, while effectively improving the accuracy and engineering applicability of loss evaluation.

The invention relates to the technical field of capacitor production, in particular to an oil immersion device for microwave oven high-voltage capacitor production, which comprises a rack, a vacuum tank and a filter are arranged at the upper part of the rack, a tank cover is arranged at the top of the vacuum tank, an accommodating disc for accommodating a capacitor is arranged in the vacuum tank in a sliding manner, and a spiral groove is formed in the inner wall of the vacuum tank; balls located in the spiral grooves are arranged on the outer wall of the containing disc, an annular frame located on the lower side of the containing disc is arranged in the vacuum tank, and push rods are connected to the top of the annular frame at intervals. The second driving mechanism can drive the lifting plate to drive the ring frame to ascend and descend, the ring frame ascends and descends to push the capacitor to ascend and descend through the push rod, and therefore dynamic oil immersion of the capacitor is achieved, sufficient oil immersion of the capacitor is guaranteed, and the oil immersion effect of the capacitor is improved. The containing disc is driven to rotate through the first driving mechanism, the containing disc rises from the interior of the vacuum tank when rotating through cooperation of the balls and the spiral grooves, redundant insulating oil on the outer surface of the capacitor is thrown away, the waiting time is shortened, and the oil immersion efficiency is improved.

Sensored insulation plug for a medium voltage or high-voltage separable connector in a national grid, and operable to insulate a connection element of the separable connector on an elevated voltage and to simultaneously detect and sense the elevated voltage. The sensored insulation plug comprises a) a plug body formed by a solidified insulating material, b) an externally accessible detection contact, c) a primary capacitor, operable as a high-voltage capacitor in a sensing voltage divider for sensing the elevated voltage, the primary capacitor having i) a high-voltage electrode; ii) a sensing electrode embedded in the plug body; iii) a dielectric formed by a first portion of the insulating material, and d) a testpoint capacitor, operable as a high-voltage capacitor in a detection voltage divider for detecting the elevated voltage and comprising i) the high-voltage electrode, ii) a testpoint electrode, embedded in the plug body and electrically connected to the detection contact, and iii) a dielectric formed by a second portion of the insulating material.

The invention belongs to the technical field of fluid control, and discloses a high-speed electric control valve and a control method thereof, and the valve comprises a tubular valve body, an internal diaphragm, a metal explosion wire adhered to the diaphragm, a connecting electrode and a control circuit. The energy storage circuit module is composed of a high-voltage capacitor and a fast thyristor, when a trigger signal is received, the thyristor is conducted to enable the capacitor to instantly discharge to the explosion wire, the metal wire is gasified to generate shock waves to break down the diaphragm, and microsecond-level high-speed conduction is achieved. The diaphragm is preferably a polyimide film with the thickness of 10-100 microns, the explosion wire is a copper / tungsten wire with the diameter of 0.05-0.5 mm, and the explosion wire is matched with a capacitor with the charging voltage of 200-1000 V and the capacitance value of 10-1000 [mu] F. The control method comprises the steps of diaphragm installation, capacitor charging, triggering signal sending, high-voltage discharging and diaphragm breaking conduction, and reliable operation is ensured by dynamically adjusting charging voltage and adopting an optical fiber / wireless triggering mode. The invention has the characteristics of fast response and strong interference resistance, and is suitable for high pressure difference occasions needing to accurately control the on-off of gas.

The utility model relates to vehicle air conditioner compressor detection technical field, concretely relates to a kind of dynamometer function detection safety electrical connection mechanism:Including starting contactor, discharge contactor, high voltage capacitor, discharge resistance, LED pilot lamp, test start button and test stop button, starting contactor and high voltage capacitor are set in high voltage direct-current power supply and the high voltage direct-current bus of measured controller assembly, starting contactor controls power on-off, high voltage capacitor can inhibit the inrush current when contactor action, reduce the impact to measured controller assembly, avoid TVS tube burst, test stop, discharge contactor attraction, discharge through discharge resistance for high voltage capacitor, LED pilot lamp real-time display discharge state, guarantee the safety of operator, measured controller assembly is connected with measured permanent magnet synchronous motor, operating computer communication, ensure that test data accurate acquisition and analysis, improve the security and data accuracy of test process.

The utility model relates to the technical field of circuit breaker especially, a pole switch with image monitoring device, including high voltage capacitor electricity -taking power supply, camera device and 10KV high voltage circuit breaker, high voltage capacitor electricity -taking power supply and camera device are integrated in 10KV high voltage circuit breaker, and high voltage capacitor electricity -taking power supply obtains electric energy from high voltage line through 10KV high voltage circuit breaker, and high voltage capacitor electricity -taking power supply converts high voltage alternating current into low voltage direct current, and high voltage capacitor electricity -taking power supply powers camera device, and camera device is used for the monitoring of line, ground environment and forest fire prevention, and 10KV high voltage circuit breaker cuts off the line when detecting the fault. The utility model realizes real -time visual monitoring to high voltage line and its surrounding environment, can stably operate in the remote area without municipal power supply, solves the problem that traditional image acquisition equipment is difficult to deploy due to the lack of reliable power supply.

The utility model discloses peculiar smell treatment equipment for high-voltage capacitor production in the field of treatment equipment, which comprises a fixed box, a connecting frame is slidably inserted in the middle of the fixed box along the vertical direction, activated carbon is arranged on the inner side of the connecting frame and positioned above a bottom plate, and first porous screen plates are mounted in the middles of frame bodies on two sides of the connecting frame; a first fixed pipe communicated with the interior of the fixed box is installed in the middle of the surface of one side of the fixed box, and an induced draft fan is installed on the inner side of the first fixed pipe, so that in the using process, peculiar smell and harmful gas generated in the production of the high-voltage capacitor can be treated; according to the high-voltage capacitor production device, peculiar smell and harmful gas generated in high-voltage capacitor production can be conveniently extracted and filtered, harm to the body health of workers due to the peculiar smell and the harmful gas can be prevented, pollution to the surrounding environment due to the peculiar smell and the harmful gas can be avoided, and the living quality of surrounding residents can be guaranteed.

The application provides an earthquake-resistant high-voltage capacitor bank for extra-high voltage direct current transmission engineering, which comprises a high-voltage tower and a low-voltage tower, the high-voltage tower and the low-voltage tower comprise a plurality of capacitor frame layers, each capacitor frame layer comprises a frame and a plurality of capacitor units, the frame comprises six load-bearing channel steels and four vertical steel pipes, the frame has a rectangular frame structure, the load-bearing channel steels form the main body of the rectangular frame structure, the steel pipes are arranged at four corners of the rectangular frame structure, and the capacitor units are installed on the load-bearing channel steels, the capacitor frame layers are connected through interlayer composite support insulators, and the interlayer composite support insulators are connected with the steel pipes of the capacitor frame layers above and below. The application solves the problem that the high-voltage capacitor bank in the prior art cannot reach a high tower layer number and a high earthquake level acceleration on the basis of a double-tower.

The invention discloses a high-reliability small-size combined high-voltage capacitor convenient to assemble, and belongs to the technical field of high-voltage capacitor production, the high-reliability small-size combined high-voltage capacitor convenient to assemble comprises a shell and a plurality of capacitor cores arranged in the shell, the plurality of capacitor cores are sequentially arranged to form a capacitor core group, and in the capacitor core group, a plurality of capacitor cores are arranged in the shell. The first ends of all the capacitor cores and the second end of the first capacitor core are respectively provided with an extraction electrode, and after the extraction electrode at the second end of the first capacitor core is bent by 90 degrees, the end portion of the extraction electrode corresponds to the positions where the end portions of all the other extraction electrodes are located. The first end of the previous capacitor core is conductively connected with the second end of the next capacitor core through a conductive connecting sheet, an insulating isolation plate is arranged between two adjacent capacitor cores, and the conductive connecting sheet passes through a through groove or a through hole in the corresponding insulating isolation plate. The size of the whole capacitor is reduced, the assembling difficulty is reduced, the insulating property and the product reliability are improved, and application is convenient.

The invention provides a high-voltage capacitor charging and discharging circuit and method for testing a power device, and the circuit achieves the controllable connection between a high-voltage power supply and a testing circuit through the arrangement of a high-voltage relay group, and enables a system to be flexibly switched among a charging state, a charging disconnection state and an electric quantity recovery state. The high-voltage power supply charges the power device test circuit and the high-voltage capacitor bank; in a charging disconnection state, the high-voltage power supply and the test circuit are completely disconnected, so that interference signals and potential safety hazards possibly caused by the fact that the high-voltage power supply continuously supplies power to the test circuit are avoided; and in the electric quantity recovery state, the high-voltage power supply is disconnected and electric energy discharge is carried out on the high-voltage capacitor bank. According to the three-state switching design scheme, the safety problem of long-term connection between the high-voltage power supply and the test circuit in the traditional test system is effectively solved. In addition, the discharged electric energy can be used as the power supply voltage of the driving circuit, so that the test safety is ensured, and the recycling of the residual electric energy is realized.

The invention provides a polyaryletherketone-based energy storage dielectric composite material as well as a preparation method and application thereof. According to the preparation method, polyaryletherketone containing active functional groups is adopted as a base material, flame-retardant polyphosphazene particles are adopted as an additive filler, and aromatic groups are grafted on the surfaces of the polyphosphazene particles after functional modification, so that the heat resistance, the breakdown field strength and the energy storage density of the composite material can be improved. The functionalized and modified polyphosphazene particles can be subjected to a cross-linking reaction with a polyaryletherketone matrix to form a three-dimensional network structure, and the polyaryletherketone-based energy storage dielectric composite material with good heat resistance, pressure resistance and flexibility is obtained. The heat resistance grade of the composite dielectric material is higher than 150 DEG C, the energy storage density reaches 6.3-11.0 J / cm < 3 >, and the energy releasable efficiency is not lower than 90%. Meanwhile, the oxygen index value is about 40%, and the material belongs to a flame-retardant material. The invention provides a high-temperature-resistant, high-energy-storage and flame-retardant energy storage dielectric material which can be used for a high-voltage capacitor.

A method and a system for initial self-healing type classification of metallized film capacitors, which relate to the technical field of high-voltage capacitors. The method comprises: applying voltages at different voltage ramp rates to metallized film capacitors to be tested, and determining a voltage bearing range of the metallized film capacitors; determining, according to a corresponding voltage of the metallized film capacitors when initial self-healing occurs and a residual voltage after the initial self-healing occurs, corresponding initial self-healing energy of metallized film capacitors when the initial self-healing occurs; establishing an initial self-healing voltage-energy database according to an initial self-healing voltage of the samples when the initial self-healing occurs and the corresponding initial self-healing energy when the initial self-healing occurs; and classifying the metallized film capacitors by combining an initial self-healing recovery condition and the subsequent service life and performance data of the metallized film capacitors.

According to the 10kV lightning arrester impact large current test system, the pulse capacitors are arranged in a lying mode instead of being arranged vertically and are divided into two layers, meanwhile, the pulse capacitors are connected in parallel in multiple paths, and the pulse capacitors in each path are connected through two capacitor cathodes. Wherein one positive electrode is connected with a resistor disc and then connected to the high-voltage capacitor side conductive disc, and the other positive electrode is connected to the zero potential conductive disc. The anode of the charging circuit is connected with the high-voltage capacitor side conductive disc, and the cathode is connected with the zero-potential conductive disc. The high-voltage capacitor side conductive disc and the zero potential conductive disc are connected to the two ends of the spherical discharge device respectively, and the spherical discharge device discharges up and down at the same time, so that the problems of non-uniform energy release, unstable current and easy explosion in the lightning arrester test process during the impact large current test are solved, and the accuracy and reliability of the test result are improved. According to the invention, the energy consumption during system testing can be effectively reduced.

The utility model relates to the technical field of transformers, in particular to an indoor melting type special voltage transformer. According to the technical scheme, the device comprises a frame, and one side of the frame is fixedly provided with a grounding terminal; the oil tank is fixedly clamped between the frames, an intermediate transformer and a compensation reactor are fixedly mounted on the inner bottom surface of the oil tank, and a damper is arranged at the upper end of the compensation reactor; the liquid measuring assembly is arranged in the oil tank and is used for monitoring the insulating oil; the porcelain bushing is fixedly arranged on the upper surface of the oil tank, a high-voltage capacitor and a low-voltage capacitor are fixedly arranged in the porcelain bushing, the high-voltage capacitor is electrically connected with the low-voltage capacitor, a wiring terminal is fixedly arranged at the upper end of the porcelain bushing, and the wiring terminal is electrically connected with one end of the high-voltage capacitor. The liquid level of the insulating oil can be monitored in real time, liquid leakage is avoided, it is ensured that the voltage transformer is always in a good working state, equipment faults are reduced, and the reliability of a whole electric power system is improved.

A vehicle mounted electrical circuit, wherein a parallel charging start processing includes a process of discharging a high-voltage capacitor via an inverter circuit and a three-phase motor in a state in which a connection switching circuit is controlled to stop voltage application from a serial circuit of a first battery and a second battery to the high-voltage capacitor, a process of charging the high-voltage capacitor by applying an output voltage of the first battery to the high-voltage capacitor, and a process of charging the first battery and the second battery in parallel by controlling a connection switching circuit such that a first battery is connected between the high-potential wiring and the low-potential wiring, a second battery between the neutral point and the low-potential wiring is connected, and a charging voltage generated by electric power supplied from an external charging facility is applied between the high-potential wiring and the low-potential wiring.

The utility model discloses an intermittent charging circuit of a high-voltage capacitor. The intermittent charging circuit comprises a first filter rectifier module, a first switch module, a power management module, a transformer, a switch tube Q2 and an output module, the first output end of the first filtering and rectifying module, the first switch module and the power management module are electrically connected with the grid electrode of the switch tube Q2 in sequence, the first end of a primary coil of the transformer is electrically connected with the second output end of the first filtering and rectifying module, and the second end of the primary coil of the transformer is electrically connected with the drain electrode of the switch tube Q2. The output end of the transformer is electrically connected with the output module, and the source electrode of the switch tube Q2 is grounded; the first switch module is used for controlling on and off of power supply of the power management module; the power management module is used for converting the direct current output by the second output end of the first filtering and rectifying module into alternating voltage; the power supply control module is switched on and switched off through the first switch module, so that the power supply control module is converted between a normal working state and a working stopping state in unit time, intermittent high-voltage output is further realized, the output time is short, the impact on the high-voltage capacitor is relatively small, and the high-voltage capacitor is not damaged. Therefore, the intermittent and low-impact-current charging requirements are met.

This invention discloses a hot air circulating oven for the production of high-voltage capacitors in microwave ovens, relating to the field of capacitor processing technology. The invention includes a base plate, which comprises a protective structure fixedly connected to its upper surface. Condensation structures are fixedly connected to both sides of the inner cavity of the protective structure. A water-pumping structure is symmetrically arranged on the lower end of the inner cavity of the protective structure. The upper part of the ends of the two water-pumping structures that are far apart from each other is fixedly connected to the condensation structure. Through the flow structure on the condensation structure, condensate is blocked and stored during use. Furthermore, a one-way permeation membrane ensures that water flow between the placement structure and the base plate is unidirectional, facilitating the placement and removal of capacitors within the protective frame. Simultaneously, the presence of the protective frame and door panel protects internal components during the drying process, preventing moisture accumulation that could affect the drying effect. It also effectively treats the moisture generated during drying, maintaining a relatively dry internal environment.

The multilayer ceramic high-voltage capacitor comprises end electrodes and a ceramic body, the inner sides of the two end electrodes are attached to the left side and the right side of the ceramic body respectively, the inner wall of the ceramic body is connected with a capacitor structure, the outer walls of the end electrodes are connected with a reinforcing structure, and the bottoms of the outer sides of the two end electrodes are fixedly connected with bases respectively. A screw rod penetrates through two square plates from back to front, the rear portion of the outer wall of the screw rod is attached to the rear square plate, then a lantern ring is in threaded connection with the front portion of the outer wall of the screw rod till the rear portion of the outer wall of the lantern ring abuts against the front face of the front square plate, at the moment, tightening force towards the inner side is formed by the square plates, and then the square plates drive the square frame to retract towards the inner side. The pressing force is formed on the outer side of the joint of the square frame, so that the connection stability of the terminal electrode and the ceramic body is improved, the service life of the ceramic high-voltage capacitor is ensured, and the normal use of the ceramic high-voltage capacitor is ensured.

The application discloses a daisy chain communication structure and a communication method. The communication structure comprises a conversion module and a daisy chain. The conversion module is connected with an MCU. The daisy chain comprises a plurality of devices connected in sequence. The device arranged at one end is connected with the conversion module, and the device arranged at the other end is defined as a top device. DUART communication is adopted between every two adjacent devices. The MCU is used for receiving external instructions and transmitting the instructions to the conversion module. The daisy chain device of the application is provided with a built-in DUART communication interface protocol. Only two communication interfaces are needed at the top and bottom, half-duplex bidirectional setting and communication protocol support are realized, the top device is set to support bidirectional differential DUART, and the differential DUART in the voltage mode supports low-cost high-voltage capacitor isolation, improves communication efficiency, and makes power consumption more balanced.

The utility model discloses a high-voltage breakdown resistant capacitor structure, which relates to the field of high-voltage breakdown resistant capacitors and comprises a box body, a capacitor and pins arranged at two ends of the capacitor, the capacitor is arranged on the inner wall of the box body in a sliding manner, and a high-voltage breakdown resistant structure is arranged on the outer side wall of the capacitor; compared with the prior art, the insulating performance of the capacitor is improved, efficient heat insulation and heat dissipation functions are achieved, the capacitor is effectively protected except for the pins, the high-voltage breakdown resistance of the capacitor is greatly enhanced, meanwhile, the structure gives consideration to optimization of heat dissipation performance on the basis of enhancing the high-voltage breakdown resistance, and the service life of the capacitor is prolonged. When the capacitor works, the generated heat can be quickly transferred to the fixing sleeve and is quickly dissipated through the cavity and the heat dissipation holes, so that the stable operation of the capacitor is effectively ensured, and the service life of the capacitor is prolonged.

The utility model discloses a circuit board circuit adjusting module, which comprises a circuit board, a wiring port, a radiating fin, an electric control silicon wafer, a clamping type radiating fin, a high-voltage capacitor, a fuse, an adjusting knob and a mistaken touch prevention locking block, the wiring port is arranged on the side end face of the circuit board, and the electric control silicon wafer, the high-voltage capacitor and the fuse are arranged in a circuit board body. The electronic control silicon wafer is installed in a clamping mode through the cooling fins and the clamping type cooling fins, the independent module of the adjusting knob and the circuit board are installed in a positioning mode, and the mistaken touch prevention locking block is fixedly installed on one side of the adjusting knob through a screw, and the circuit adjusting module of the circuit board is suitable for efficient cooling of electronic components and parts and mistaken touch prevention design of the adjusting knob. The electronic control silicon wafer is clamped and installed through the cooling fins and the clamping type cooling fins, the cooling silicone grease layer, the center heat conduction copper plate and the front cooling fins are matched with the cooling fins to achieve double-face efficient cooling, the tightening bolts are screwed to drive the clamping blocks to move after the adjusting knobs are adjusted, and the adjusting knobs are extruded and fixed through the anti-skid rubber cushion blocks to prevent the knobs from being touched by mistake.

The utility model provides a kind of 3VA ultra-low power consumption's primary and secondary depth fusion device, including primary switch and FTU controller, primary switch is built-in for the pole of capacitor power taking, and its power side and load side are connected with the output end of a pole respectively;Capacitor power taking module is arranged in pole, and capacitor power taking module includes capacitor voltage divider and electromagnetic unit, one end of the high voltage capacitor of capacitor voltage divider is connected with the high voltage terminal of primary switch, and the other end is connected with the low voltage terminal of primary switch by low voltage capacitor, and the medium voltage capacitor tap of high voltage capacitor and low voltage capacitor is connected with the input end of electromagnetic unit, and electromagnetic unit provides matching inductive compensation output standard 24V low-voltage alternating current.The utility model reaches the effect of easy installation and maintenance, efficient electric energy conversion, low-power operation and self-adapting power management by setting the pole of built-in capacitor power taking in primary side and the power management module of FTU controller.

A defibrillator of the present disclosure includes a H-bridge type biphasic pulse generation circuit connected to the rear stage side of a high-voltage capacitor. The biphasic pulse generation circuit includes a first switch, a second switch connected in parallel to the first switch, a third switch connected in series and to the rear stage side of the first switch, and a fourth switch connected in series and to the rear stage side of the second switch. The biphasic pulse generation circuit outputs a biphasic pulse from a first output line connected to a connection intermediate point between the first and third switches and from a second output line connected to a connection intermediate point between the second and fourth switches. In at least one of the first switch to the fourth switch, a plurality of thyristors are connected in series, and a resistor is connected in parallel to each thyristor.

A single-drive gate cascaded high-voltage MOSFET module circuit includes: a MOSFET, a static voltage equalization resistor, a high-voltage capacitor, a high-voltage avalanche diode, a transient voltage suppressor (TVS) diode, a drive resistor, and a varistor (MOV). The present invention has a simple drive structure and also has excellent switching characteristics, superior dynamic and static voltage equalization effects, and low module loss.