Flyback converter with novel active clamp control and secondary side post regulator for low standby power consumption under high-efficiency operation

Jung, Jee‐Hoon; Ahmed, Shamsuddin

doi:10.1049/iet-pel.2010.0363

Cited by 36 publications

(28 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Differentiating Equation 2 yields to Equation 3 and substitution of the current charging rates of inductor currents and capacitor current of clamp circuit into Equation 3 gives Equation 4.…”

Section: Dcmmentioning

confidence: 99%

“…[1][2][3][4][5][6][7][8][9] Successful implementation of these techniques requires a perfect model of the converter which can be used in various operating modes and loading conditions. Several techniques are applied to regulate output voltages of multiple-output converters such as a multiple-output flyback converter.…”

Section: Introductionmentioning

confidence: 99%

“…Several techniques are applied to regulate output voltages of multiple-output converters such as a multiple-output flyback converter. [1][2][3][4][5][6][7][8][9] Successful implementation of these techniques requires a perfect model of the converter which can be used in various operating modes and loading conditions. In this regard, in this paper, the focus is on presenting a suitable model for the converter to derive the dynamic characteristics and then design the controller and check the stability once the loop is closed by any regulation technique.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Dynamic model development and control for multiple‐output flyback converters in DCM and CCM

Delavaripour

Dehkordi

Adib

et al. 2018

Circuit Theory & Apps

View full text Add to dashboard Cite

Multiple-output flyback converters are widely used in switching power supplies due to their low component count and cost-effective structure. The main problem of this structure is how to balance output voltages in different load conditions. This paper proposes a new approach for single-input multiple-output flyback converters operating in DCM and CCM by a small-signal averaged model. The averaged model is derived by presenting the piecewise-linear waveform for the inductor currents inside the converter. In DCM, the magnetizing current and currents through the output windings reach zero when the switch is turned off. In CCM, the magnetizing current of the converter is continuous over a switching interval and this possibility exists that only some of the output diodes completely conduct when the switch is off. The proposed model of the converter can be used in a wide range of operations within identical and non-identical loading conditions. Using a laboratory prototype, several case studies and input-to-output transfer functions are considered to verify the proposed model. The controller design is performed for the both CCM and DCM, and then dynamic characteristics of the overall system are evaluated.

show abstract

Section: Dcmmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Dynamic model development and control for multiple‐output flyback converters in DCM and CCM

Delavaripour

Dehkordi

Adib

et al. 2018

Circuit Theory & Apps

View full text Add to dashboard Cite

show abstract

“…Among the various configurations, Flyback topology has been widely used in the consumer electronics as well as in the telecommunication industry due to the low cost, simple configuration and low components count [18] [19]. In the past decades, this topology has been successfully applied in the high voltage generation situations, such as the power supply for CRT displays, high voltage capacitor charging applications, etc [20] [21] [22].…”

Section: Hv Power Stagementioning

confidence: 99%

DEAP actuator and its high voltage driver for heating valve application

Huang

Nørmølle²,

Sarban

et al. 2014

SPIE Proceedings

View full text Add to dashboard Cite

Due to the advantages of DEAP (Dielectric Electro Active Polymer) material, such as light weight, noise free operation, high energy and power density and fast response speed, it can be applied in a variety of applications to replace the conventional transducers or actuators. This paper introduces DEAP actuator to the heating valve system and conducts a case study to discuss the feasible solution in designing DEAP actuator and its driver for heating valve application. First of all, the heating valves under study are briefly introduced. Then the design and the development for DEAP actuator is illustrated in detail, and followed by the detailed investigation of the HV driver for DEAP actuator. In order to verify the implementation, the experimental measurements are carried out for DEAP actuator, its HV driver as well as the entire heating valve system.

show abstract

“…Active snubber circuits [7] need additional auxiliary switch and complex control mechanisms to perform the snubber action. Passive snubber circuits [8] use resistors, capacitors and diodes only and require no external control mechanism.…”

Section: Introductionmentioning

confidence: 99%

Low-inductance snubber arrays for high-power, high-bandwidth switch-mode amplifiers

Rogers

Lakshmanan

2015

2015 IEEE Applied Power Electronics Conference and Exposition (APEC)

View full text Add to dashboard Cite

This paper presents a low inductance snubber design incorporating a damped DC bus capacitance and multiple RC+RCD cells arranged in two arrays. The design suppresses transient over-voltage peaks seen at the switching transitions in hard-switched, high-frequency switch-mode circuits which are created by an unavoidable interaction between circuit parasitic inductances, IGBT turn-off current slopes and free-wheeling diode reverse recovery currents. The array arrangement allows the use of small surface-mount, ultrafast diodes by enforcing current sharing between many devices. An industrial application example is presented where the snubber design enables an increase in DC bus voltage from 200V to 400V when using 600V Si IGBTs operated at a switching frequency of 75 kHz. Simulation results are presented and compared to experimental measurements to illustrate the operating principle and effectiveness of the array design.Low-inductance snubber arrays for high-power, high-bandwidth switch-mode amplifiers S 978-1-4799-6735-3/15/$31.00 ©2015 IEEE

show abstract

Flyback converter with novel active clamp control and secondary side post regulator for low standby power consumption under high-efficiency operation

Cited by 36 publications

References 23 publications

Dynamic model development and control for multiple‐output flyback converters in DCM and CCM

Dynamic model development and control for multiple‐output flyback converters in DCM and CCM

DEAP actuator and its high voltage driver for heating valve application

Low-inductance snubber arrays for high-power, high-bandwidth switch-mode amplifiers

Contact Info

Product

Resources

About