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34 results about "Zeta converter" patented technology
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Coupled inductor-type three-level Zeta converter
InactiveCN104967313AHigh voltage gainReduce dependenceDc-dc conversionElectric variable regulationThree levelCapacitance
The invention discloses a coupled inductor-type three-level Zeta converter, which relates to the technical field of power electronics converters and aims at solving the problem that as voltage gain is limited by the value of a duty ratio, a voltage conversion ratio of the circuit depends too much on selection of the switch duty cycle. Primary ends of the coupled inductors in the circuit are connected in parallel with a power supply when two main switch transistors are conducted, the power supply charges the coupled inductors, n times of voltage are generated at the secondary ends of the coupled inductors correspondingly, voltage at two ends of bootstrap capacitors is enhanced to n+1 times of power voltage. When one of the two main switch transistors is cut off, the primary ends and the secondary ends of the two coupled inductors are serially connected together in the circuit for discharging. According to a volt-second balance circuit effect principle, the circuit can realize high voltage gain. As the circuit introduces a turn ratio of the coupled inductor, dependence on the duty cycle value by the voltage gain is fully reduced. The coupled inductor-type three-level Zeta converter can be used for changing the topological structure of a DC converter main circuit.
Owner:HARBIN INST OF TECH
Switch converter double-edge constant breakover time modulation voltage type control method and device thereof
ActiveCN103066811AImprove transient performanceQuick adjustment of off timePower conversion systemsDouble tubeBuck converter
The invention discloses a switch converter double-edge constant breakover time modulation voltage type control method and a device thereof. According to relation between output voltages and voltage reference value, the switch converter double-edge constant breakover time modulation voltage type control method and the device thereof use a control time series formed by constant breakover, turn-off and constant breakover or a control time series formed by turn-off, constant breakover and turn-off for controlling breakover and turn-off of the switch converter switch tube. The switch converter double-edge constant breakover time modulation voltage type control method and the device thereof can be used for controlling a plurality of switch converters with a topological structure, such as a Buck converter, a Buck2 converter, a Cuk converter, a Zeta converter, a single tube normal shock converter, a double-tube normal shock converter, a push-pull converter, a push-pull normal shock converter, a half-bridge converter and a full-bridge converter. The switch converter double-edge constant breakover time modulation voltage type control method and the device thereof has the advantages of being simple in control, fast in transient response speed, high in voltage stabilization accuracy, and capable of not compensating network.
Owner:SOUTHWEST JIAOTONG UNIV
Double-bootstrap three-level Zeta converter
ActiveCN103986325AIncrease Conversion RatioReduce volumeDc-dc conversionElectric variable regulationThree levelCascade converter
The invention discloses a double-bootstrap three-level Zeta converter and belongs to the technical field of power electronic converters. The invention aims to solve the problems that loss in a conversion circuit and a cascade converter which do not need to be isolated is high, the equipment size is large and the cost is high when a topological structure of a direct current converter main circuit is changed by means of adding a transformer or utilizing cascade connection at present. According to the double-bootstrap three-level Zeta converter, a switching inductor circuit with an auxiliary switch is added on the basis of a topological structure of an original two-level Zeta converter circuit, so that a conversion ratio of the direct current converter is improved. The switching loss of the double-bootstrap three-level Zeta converter is 3 / 2n the switching loss under the condition that n circuits are in cascade connection with one another on the premise of the same effect with the traditional mode of increase of transformers and cascade connection of n circuits; and moreover the transformer equipment is reduced, so that the total equipment size is reduced, and the cost is saved. The invention is applied to modification of the topological structure of the direct current converter main circuit.
Owner:HARBIN INST OF TECH
Actuation mechanism for a mechanical diode assembly
ActiveCN105580497AEfficient power electronics conversionElectroluminescent light sourcesCapacitanceTransformer
The present disclosure provides an actuation mechanism for applying a mechanical diode clutch. The actuation mechanism includes a capsule including a cylindrical body defining an interior chamber, the cylindrical body defining a first opening at a first end and a second opening at a second end thereof. The actuation mechanism also includes a pin having a body and a radially- extending arm, the pin being retained within the interior chamber of the capsule. An apply spring is coupled at one end to the pin and a return spring is retained within the interior chamber of the capsule. The return spring is disposed between the pin on one end and the cylindrical body on the opposite end thereof. The return spring substantially surrounds the apply spring.
Owner:OSRAM GMBH
Bipolar transistor self-exciting Zeta converter
ActiveCN101877533ASimple structureReduce the numberDc-dc conversionElectric variable regulationEngineeringInductor
A bipolar transistor self-exciting Zeta converter comprises a PNP transistor Q1, an inductor L1, a capacitor C2, a diode D1, an inductor L2 and a capacitor C3 which form a main circuit of the Zeta converter and also comprises a PNP transistor Q2, wherein the emitting electrode of the PNP transistor Q1 is connected with the positive terminal of direct current input voltage Vi; the junction of the inductor L1 and the capacitor C2 is connected with the collecting electrode of the PNP transistor Q1; the emitting electrode and the collecting electrode of the PNP transistor Q2 are respectively connected with the emitting electrode and the base electrode of the PNP transistor Q1; the base electrode of the PNP transistor Q1 is also connected to the negative terminal of direct current input voltage Vi by a resistor R1; series branch circuits of a resistor R2 and a resistor R3 are connected at the two ends of the emitting electrode and the collecting electrode of the Q1 in parallel; and the junction of the resistor R2 and the resistor R3 is connected with the base electrode of the PNP transistor Q2. The converter has simple circuit structure, a few of components and widened application range.
Owner:苏州卫优知识产权运营有限公司
Novel high-gain Zeta DC-DC converter
ActiveCN112701923AReduce voltage stressHigh input and output gainDc-dc conversionElectric variable regulationCapacitanceHemt circuits
The invention discloses a novel high-gain Zeta DC-DC converter. The converter comprises a direct current input source, a basic Zeta converter and n-1 gain expansion units. Each gain expansion unit is composed of an inductor, two capacitors and a diode, and the input and output gain of the converter and the voltage stress of a switching device can be adjusted by adjusting the number of the gain expansion units. The converter has the advantages of being simple in control and drive circuit, wide in input and output voltage adjusting range, low in switching device voltage stress and the like, and is suitable for application occasions with large input voltage and output voltage change ranges.
Owner:CHINA THREE GORGES UNIV
High-voltage direct current breaker and fault cutting method thereof based on Zeta converter topologies
ActiveCN104767186ALow costReduce running lossEmergency protective circuit arrangementsClosed loopHigh-voltage direct current
The invention discloses a high-voltage direct current breaker and a fault cutting method thereof based on Zeta converter topologies, and aims at solving the problems that the cost of existing breaker equipment is high, the responding speed is low, and equipment operation wastage is high. The breaker comprises a breaker body and a control system, wherein the control system comprises inner ring adjustment control currents and outer ring adjustment control voltage; an auxiliary controller is added to double closed-loop adjustment, and voltage transformation and protective control are conducted on the high-voltage direct current breaker. Compared with a traditional high-voltage breaker, the high-voltage direct current breaker has the advantages that the breaker has more functions, the breaking speed is higher, and the cost is saved. When a high-voltage direct current transmission system is in a normal operation, functions of boosting and reducing voltage are achieved, a boost state and a reduction voltage state are switched over, and the breaker can be used in electric power circuits with different voltage classes; meanwhile when a short-circuit fault of electric transmission circuits occurs, the short-circuit fault can be effectively cut in time.
Owner:SOUTHWEST JIAOTONG UNIV
Dual-edge constant-turnoff-time modulating voltage type control method and device for switching converter
ActiveCN103078475AImprove transient performanceOn-time fast adjustmentPower conversion systemsDouble tubePush pull
The invention discloses a dual-edge constant-turnoff-time modulating voltage type control method and a dual-edge constant-turnoff-time modulating voltage type control device for a switching converter. The turnoff and turn-on of a switching tube of the switching converter are controlled according to a relation between an output voltage and a voltage reference value by adopting a control time sequence consisting of constant turnoff, turn-on and constant turnoff or a control time sequence consisting of turn-on, constant turnoff and turn-on. The method and the device can be used for controlling switching converters of multiple topological structures such as a Buck converter, a Buck2 converter, a Cuk converter, a Zeta converter, a single-tube forward converter, a double-tube forward converter, a push-pull converter, a push-pull forward converter, a half-bridge converter, and a full-bridge converter, and have the advantages of no need of any compensation network, easiness in controlling, high transient response speed and high voltage stabilizing accuracy.
Owner:SOUTHWEST JIAOTONG UNIV
Switching converter double pulse frequency modulation V<2> type control method and device thereof
ActiveCN103095107AImprove transient performanceFast Adjustment On-TimePower conversion systemsImpulse frequencyDouble tube
The invention discloses a switching converter double pulse frequency modulation V<2> type control method and a device thereof. According to the relationship between a control voltage Vc generated by the fact that a reference voltage Vref and an output voltage Vos pass through an error compensator and the output voltage Vos, preset constant-on-time or constant-off-time is combined, three sections of time t1, t2 and t3 are generated, each period sequentially adopts a control timing sequence formed by the t1, the t2 and the t3, and switch-on and switch-off of a switching tube of a switching converter are controlled. The method and the device can be used for controlling a Buck converter, a Buck2 converter, a Cuk converter, a Zeta converter, a single-tube forward converter, a double-tube forward converter, a push-pull converter, a push-pull forward converter, a half-bridge converter, a full-bridge converter and other switching converters in various topological structures. The device has the advantages that load transient response speed is high, voltage stabilizing precision is high, and stabilizing performance is good.
Owner:SOUTHWEST JIAOTONG UNIV
MOSFET-based auto-excitation type Zeta converter
ActiveCN102510217ASimple structureImprove efficiencyDc-dc conversionElectric light circuit arrangementMOSFETEngineering
An MOSFET (Metal-Oxide -Semiconductor Field Effect Transistor)-based auto-excitation type Zeta converter comprises a Zeta converter main loop consisting of an input capacitor Ci, an N-type MOSFET M1, an inductor L1, a capacitor C, a diode D, an inductor L2 and a capacitor Co. The converter further comprises an auxiliary power supply U1, and adopts a single-MOSFET basic auto-excitation unit circuit consisting of the N-type MOSFET M1, a diode D1, a diode D2, a resistor R1, a resistor R2, a resistor R3, a capacitor C1, a hysteresis comparator U3 and a drive circuit U2. The MOSFET-based auto-excitation type Zeta converter provided by the invention has the advantages of higher efficiency and wider applicable power range.
Owner:金湖县农副产品营销协会
Wide-gain zeta converter
ActiveCN103490615AHigh Output Voltage GainSimple structureApparatus without intermediate ac conversionElectric variable regulationCapacitanceInductor
The invention provides a wide-gain zeta converter. The wide-gain zeta converter mainly comprises a switch tube, three power inductors, two middle energy-storage capacitors, an output capacitor and three diodes. In the working process of the wide-gain zeta converter, the inherent properties of an inductor-capacitor-diode network are utilized, when the switch tube is switched off, the second power inductor charges the first middle energy-storage capacitor, and the first power inductor discharges; when the switch tube is switched on, the first middle energy-storage capacitor and an input power supply charge the first power inductor simultaneously, therefore, output voltage is boosted, and the gain of output voltage of the converter is expanded by combining original characteristics of a traditional zeta converter.
Owner:SOUTH CHINA UNIV OF TECH
Automatic voltage-sharing bipolar Zeta DC-DC converter
ActiveCN112737324AReduce voltage stressHigh input and output gainConversion using Cuk convertorsElectric variable regulationCapacitanceHemt circuits
The invention discloses an automatic voltage-sharing bipolar Zeta DC-DC converter. The converter comprises a direct-current input source, a basic Zeta converter, m-1 homopolar expansion units and n reversed polarity voltage expansion units. Each of the homopolar and reversed polarity expansion units is composed of an inductor, two capacitors and a diode, and the input and output gain of the converter and the voltage stress of a switching device can be adjusted by adjusting the number of the expansion units. The converter provided by the invention has the advantages of simple control and drive circuit, wide input and output voltage adjustment range, low switching device voltage stress and the like, and is more suitable for the application occasions where positive and negative power supply output is needed and the input voltage and output voltage change range is large.
Owner:CHINA THREE GORGES UNIV
Input adaptive self-excited zeta converter
ActiveCN104038057BReduce freewheeling conduction lossLow current sense lossDc-dc conversionElectric variable regulationSelf excitedZeta converter
Owner:沈阳钢中宝科技有限公司
Converter switch current decoupling circuit
InactiveCN110445350AAchieve storageAchieve releasePower conversion systemsCapacitanceDc dc converter
The invention relates to a converter switch current decoupling circuit; for Buck, Boost and Buck-Boost converters, a switch current decoupling circuit is represented by taking an energy storage element as a center and a public branch, and with separated switch tube branch and diode branch; for Cuk and Zeta converters, if the branch circuit wherein an energy storage capacitor is located serves as the center branch of the circuit, the branch circuits where a first inductor and a first diode are located are arranged on the upper left and upper right of the central branch with an angle of 45 degrees; and branch circuits where a first switch tube and a second inductor are located are arranged on the lower left and lower right of the central branch with an angle of 45 degrees. Due to the adoption of the scheme, the circuit is simple and symmetrical, the physical process of energy storage and release of the energy storage element under the effect of the switch tube and the diode is achieved,the circuit is simple and easy to learn, and the circuit is a beneficial supplement of the existing basic DC-DC converter principle description.
Owner:NORTH CHINA UNIVERSITY OF TECHNOLOGY
Zero-voltage turn-off and zero-current turn-on high-gain Zeta converter
PendingCN113691123AEliminate turn-on lossesEliminates turn-off lossesApparatus without intermediate ac conversionCapacitanceHemt circuits
The invention discloses a zero-voltage turn-off and zero-current turn-on high-gain Zeta converter. The converter comprises a main circuit and an auxiliary circuit. the main circuit comprises a Zeta converter, at least one coat unit and an auxiliary unit. The Zeta converter comprises an inductor L1, an inductor L2, a power switch tube S1, a diode D1, a capacitor C1 and a capacitor C2. The auxiliary circuit comprises a zero-current inductor Lr, an auxiliary inductor Ls, a zero-voltage capacitor Cr and diodes D2, D3 and D4. According to the zero-voltage turn-off and zero-current turn-on high-gain Zeta converter, zero-voltage turn-off and zero-current turn-on of the power switch tube are realized through the auxiliary circuit, and the switching loss of the power switch tube in the circuit is reduced.
Owner:CHINA THREE GORGES UNIV
Input adaptive auto-excitation type Zeta converter
ActiveCN104038057AReduce freewheeling conduction lossLow current sense lossDc-dc conversionElectric variable regulationPower flowInductor
Owner:沈阳钢中宝科技有限公司
A rectifier for power factor correction at the receiving end of a wireless power transmission system
ActiveCN113193764BReduce switching frequencyReduce switching lossesEfficient power electronics conversionAc-dc conversionCapacitanceSwitching frequency
Owner:GUANGDONG UNIV OF TECH
Switching converter double pulse frequency modulation V<2> type control method and device thereof
ActiveCN103095107BImprove transient performanceHigh voltage regulation accuracyPower conversion systemsDouble tubePush pull
The invention discloses a switching converter double pulse frequency modulation V<2> type control method and a device thereof. According to the relationship between a control voltage Vc generated by the fact that a reference voltage Vref and an output voltage Vos pass through an error compensator and the output voltage Vos, preset constant-on-time or constant-off-time is combined, three sections of time t1, t2 and t3 are generated, each period sequentially adopts a control timing sequence formed by the t1, the t2 and the t3, and switch-on and switch-off of a switching tube of a switching converter are controlled. The method and the device can be used for controlling a Buck converter, a Buck2 converter, a Cuk converter, a Zeta converter, a single-tube forward converter, a double-tube forward converter, a push-pull converter, a push-pull forward converter, a half-bridge converter, a full-bridge converter and other switching converters in various topological structures. The device has the advantages that load transient response speed is high, voltage stabilizing precision is high, and stabilizing performance is good.
Owner:SOUTHWEST JIAOTONG UNIV
An automatic voltage equalization bipolar zeta DC-DC converter
ActiveCN112737324BReduce voltage stressHigh input and output gainConversion using Cuk convertorsElectric variable regulationCapacitanceHemt circuits
Owner:CHINA THREE GORGES UNIV
Power factor correction rectifier for receiving end of wireless power transmission system
ActiveCN113193764AReduce switching frequencyReduce switching lossesEfficient power electronics conversionAc-dc conversionCapacitanceSwitching frequency
The invention discloses a power factor correction rectifier for a receiving end of a wireless power transmission system. The principle of inductance and capacitance resonance is utilized in the preceding stage, and the power factor correction technology of a medium-high frequency current continuous conduction mode is achieved. By reducing the switching frequency, the switching loss is reduced, and the influence of high-frequency parasitic parameters is reduced. The rear stage can be connected with various DC-DC converters, such as a Buck converter, a Buck-Boost converter and a Zeta converter, so that the output voltage can be flexibly controlled.
Owner:GUANGDONG UNIV OF TECH
Multi-input high-reliability Zeta DC-DC converter
PendingCN113890351AHigh input and output gainWork lessEfficient power electronics conversionDc-dc conversionCapacitanceHemt circuits
The invention discloses a multi-input high-reliability Zeta DC-DC converter. The converter comprises m + n + 1 direct current input sources, a basic Zeta converter, m forward voltage expansion units and n negative voltage expansion units. Each expansion unit is composed of a direct current source, two inductors, two capacitors and a diode, and the input and output gains of the converter and the voltage stress of a switching device can be adjusted by adjusting the number of the expansion units. The converter has the characteristics of simple control and drive circuit, wide input and output voltage regulation range and high reliability; when one switching tube is damaged, other circuits can work normally. The circuit is suitable for application occasions where the change range of output input voltage and output voltage is large, multiple power supplies are needed to supply power at the same time, and the reliability requirement is high.
Owner:CHINA THREE GORGES UNIV
Bipolar transistor self-exciting Zeta converter
ActiveCN101877533BSimple structureReduce the numberDc-dc conversionElectric variable regulationInductorEngineering
A bipolar transistor self-exciting Zeta converter comprises a PNP transistor Q1, an inductor L1, a capacitor C2, a diode D1, an inductor L2 and a capacitor C3 which form a main circuit of the Zeta converter and also comprises a PNP transistor Q2, wherein the emitting electrode of the PNP transistor Q1 is connected with the positive terminal of direct current input voltage Vi; the junction of the inductor L1 and the capacitor C2 is connected with the collecting electrode of the PNP transistor Q1; the emitting electrode and the collecting electrode of the PNP transistor Q2 are respectively connected with the emitting electrode and the base electrode of the PNP transistor Q1; the base electrode of the PNP transistor Q1 is also connected to the negative terminal of direct current input voltage Vi by a resistor R1; series branch circuits of a resistor R2 and a resistor R3 are connected at the two ends of the emitting electrode and the collecting electrode of the Q1 in parallel; and the junction of the resistor R2 and the resistor R3 is connected with the base electrode of the PNP transistor Q2. The converter has simple circuit structure, a few of components and widened application range.
Owner:苏州卫优知识产权运营有限公司
Dual-input high-reliability capacitor current consistent type Zeta DC-DC converter
PendingCN113890346AHigh input and output gainEfficient power electronics conversionDc-dc conversionCapacitanceHemt circuits
The invention discloses a dual-input high-reliability capacitor current consistent type Zeta DC-DC converter. The converter comprises two DC input sources, a basic Zeta converter, an input unit, m forward expansion units and n backward voltage expansion units. Each of the forward expansion unit and the reverse expansion unit is composed of an inductor, two capacitors and a diode, and the input and output gain of the converter and the voltage stress of a switching device can be adjusted by adjusting the number of the forward expansion unit and the number of the reverse expansion unit. The converter has the characteristics of simple control and drive circuit, wide input and output voltage regulation range and high reliability; when one switching tube is damaged, other circuits can work normally; and the circuit is quite suitable for application occasions where the change range of output input voltage and output voltage is large, two power supplies are needed to supply power at the same time, and the reliability requirement is high.
Owner:CHINA THREE GORGES UNIV
Double-edge constant on-time modulation voltage control method for switching converters
ActiveCN103066811BImprove transient performanceQuick adjustment of off timePower conversion systemsDouble tubePush pull
The invention discloses a switch converter double-edge constant breakover time modulation voltage type control method and a device thereof. According to relation between output voltages and voltage reference value, the switch converter double-edge constant breakover time modulation voltage type control method and the device thereof use a control time series formed by constant breakover, turn-off and constant breakover or a control time series formed by turn-off, constant breakover and turn-off for controlling breakover and turn-off of the switch converter switch tube. The switch converter double-edge constant breakover time modulation voltage type control method and the device thereof can be used for controlling a plurality of switch converters with a topological structure, such as a Buck converter, a Buck2 converter, a Cuk converter, a Zeta converter, a single tube normal shock converter, a double-tube normal shock converter, a push-pull converter, a push-pull normal shock converter, a half-bridge converter and a full-bridge converter. The switch converter double-edge constant breakover time modulation voltage type control method and the device thereof has the advantages of being simple in control, fast in transient response speed, high in voltage stabilization accuracy, and capable of not compensating network.
Owner:SOUTHWEST JIAOTONG UNIV
A wide gain zeta converter
ActiveCN103490615BHigh Output Voltage GainSimple structureApparatus without intermediate ac conversionElectric variable regulationCapacitanceInductor
The invention provides a wide-gain zeta converter. The wide-gain zeta converter mainly comprises a switch tube, three power inductors, two middle energy-storage capacitors, an output capacitor and three diodes. In the working process of the wide-gain zeta converter, the inherent properties of an inductor-capacitor-diode network are utilized, when the switch tube is switched off, the second power inductor charges the first middle energy-storage capacitor, and the first power inductor discharges; when the switch tube is switched on, the first middle energy-storage capacitor and an input power supply charge the first power inductor simultaneously, therefore, output voltage is boosted, and the gain of output voltage of the converter is expanded by combining original characteristics of a traditional zeta converter.
Owner:SOUTH CHINA UNIV OF TECH
Multi-input high-reliability capacitor current consistent type Zeta DC-DC converter
PendingCN113890350AHigh input and output gainEfficient power electronics conversionDc-dc conversionCapacitanceHemt circuits
The invention discloses a multi-input high-reliability capacitor current consistent type Zeta DC-DC converter. The converter comprises m + n + 1 direct current input sources, a basic Zeta converter, m forward voltage expansion units and n negative voltage expansion units. Each expansion unit is composed of a direct current source, two inductors, two capacitors and a diode, and the input and output gains of the converter and the voltage stress of a switching device can be adjusted by adjusting the number of the expansion units. The converter has the advantages of being simple in control and drive circuit, wide in input and output voltage adjusting range and high in reliability, and when one switching tube is damaged, other circuits can work normally; the circuit is suitable for application occasions where the change range of output input voltage and output voltage is large, multiple power supplies are needed to supply power at the same time, and the reliability requirement is high.
Owner:CHINA THREE GORGES UNIV
MOSFET-based auto-excitation type Zeta converter
ActiveCN102510217BSimple structureImprove efficiencyDc-dc conversionElectric light circuit arrangementMOSFETInductor
An MOSFET (Metal-Oxide -Semiconductor Field Effect Transistor)-based auto-excitation type Zeta converter comprises a Zeta converter main loop consisting of an input capacitor Ci, an N-type MOSFET M1, an inductor L1, a capacitor C, a diode D, an inductor L2 and a capacitor Co. The converter further comprises an auxiliary power supply U1, and adopts a single-MOSFET basic auto-excitation unit circuit consisting of the N-type MOSFET M1, a diode D1, a diode D2, a resistor R1, a resistor R2, a resistor R3, a capacitor C1, a hysteresis comparator U3 and a drive circuit U2. The MOSFET-based auto-excitation type Zeta converter provided by the invention has the advantages of higher efficiency and wider applicable power range.
Owner:金湖县农副产品营销协会
Electronic resonant and isolated half-bridge zeta converters
ActiveCN105580497BEfficient power electronics conversionElectroluminescent light sourcesCapacitanceSwitching cycle
An electronic half-bridge ZETA converter comprising: a transformer (T), wherein a half-bridge (S1, S2) is connected to the primary winding (T1) of the transformer (T), and capacitors (CA1, CA2) and diodes (DA1, DA2) is associated with the half-bridge switches (S1, S2). The ZETA converter is connected to the secondary winding (T2) of the transformer (T), the converter comprises a first inductance comprising the leakage inductance (LM) and the second inductance (L0) of the transformer (T). The converter includes a control unit (112) that drives the half-bridge switches. During a fourth time interval of the switching cycle, the first switch (S1) and the second switch (S2) are opened, so that the capacitor (CA2) associated with the second switch (S2) charges and is connected to The capacitor (CA1) associated with the first switch (S1) is discharged, thereby achieving zero voltage switching.
Owner:OSRAM GMBH
Self-stimulated DC-DC converter with switch at input side, and interleaved parallel connection form thereof
PendingCN109787477AImprove vibrationVarious formsDc-dc conversionElectric variable regulationDc dc converterBuck converter
The invention discloses a self-stimulated DC-DC converter with a switch at an input side, and an interleaved parallel connection form thereof. The self-stimulated DC-DC converter with the switch at the input side comprises one self-stimulating unit and a follow current unit, or a self-stimulating unit, an inductor L1 and a capacitor C0. The interleaved parallel connection form of the self-stimulated DC-DC converter comprises one self-stimulating unit and n flow current units, or one self-stimulating unit, the inductors L1-1 to Ln-1 and the capacitor C0. The self-stimulated DC-DC converter withthe switch at the input side, which can be formed by the invention, and the interleaved parallel connection form thereof (comprising a Buck-Boost converter, a Zeta converter, a Flyback converter, a Buck converter, and so on), can satisfy diversified power conversion demands, meanwhile, also have the following advantages: being easy to start oscillation, having low requirements on elements and devices participating in self stimulating, being easy to expand and increasing capacitor.
Owner:ZHEJIANG UNIV OF TECH
Single-input high-reliability Zeta DC-DC converter
PendingCN113890348AHigh input and output gainEfficient power electronics conversionDc-dc conversionCapacitanceHemt circuits
The invention discloses a single-input high-reliability Zeta DC-DC converter. The converter comprises a DC input source, a basic Zeta converter, m forward expansion units and n backward voltage expansion units. Each of the forward expansion unit and the reverse expansion unit is composed of two inductors, two capacitors and a diode, and input and output gains of the converter can be adjusted by adjusting the number of the forward expansion units and the number of the reverse expansion units. The converter has the characteristics of simple control and drive circuit, wide input and output voltage regulation range and high reliability and when one switch tube of the expansion unit is damaged, other circuits can work normally. The circuit is quite suitable for application occasions where the change range of output input voltage and output voltage is large, two power supplies are needed to supply power at the same time, and the reliability requirement is high.quite.
Owner:CHINA THREE GORGES UNIV
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