Design and implementation of an isolated switched-mode power supply for led application

Reshma, K P; Sreenath, R; Pai, Namratha

doi:10.1109/iccpeic.2016.7557277

Cited by 9 publications

(8 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Isolated Switched-Mode Power Supply was presented by Reshma et al A new idea in the design of switched mode energy conversion is given on the account of its intense simplicity, flexibility and performance. It has the capacity to replace a few conventional electric power processing techniques presently in use (Reshma et al, 2016). Multilevel power conversion system was presented by Babaei (2008).…”

Section: Brief Literature Surveymentioning

confidence: 99%

An Improved Response of Multi Level Inverter Based PR Controlled SMPS

Sasikala

Krishnakumar

2020

Front. Energy Res.

View full text Add to dashboard Cite

This paper mainly focuses on identifying an optimum controller for Multi Level Inverter Based Switched Mode Power Supply (MLIBSMPS) for constant voltage applications. Generally, there is a greater demand of constant voltage for the sensitive loads. A closed loop control is introduced in the circuit in order to obtain constant voltage quickly if there are any disturbances occur at the input side. In this paper, closed loop Proportional Integral (PI) as well as Proportional Resonant (PR) controlled MLI based SMPS systems are simulated and the comparison of their performance is done. It is seen that an acceptable performance is achieved using PR controlled MLI based SMPS than PI Controlled MLI based SMPS. It also proves that PR Controlled SMPS with 7 level inverters has reduced steady state error and improved time domain response as compared to PI Controlled SMPS.Keywords: multi level inverter based switched mode power supply (MLIBSMPS), proportional integral controller (PIC), dynamic response, proportional resonant controller (PRC), steady state error

show abstract

Section: Brief Literature Surveymentioning

confidence: 99%

An Improved Response of Multi Level Inverter Based PR Controlled SMPS

Sasikala

Krishnakumar

2020

Front. Energy Res.

View full text Add to dashboard Cite

show abstract

“…The input voltage v in (t) is given in (1). Then, the rectifier voltage v m (t) can be obtained as in (2)…”

Section: Flyback Pfc Cellmentioning

confidence: 99%

“…Here, the minimum working frequency f min is selected as 50 kHz, the waveform factor K f is usually set to be 403, the magnetic flux density B w is chosen as 0.15 T, the minimum voltage across the primary-side inductor of transformer T 2 U pmin is 85 V. An EI33 ferrite core is selected as T 2 core, which has an effective area Ae = 118.50 mm 2 . So the number of N p2 is set to be 24.…”

Section: Design Of the Proposed Led Drivermentioning

confidence: 99%

“…Owing to the advantages of superior longevity, high luminous intensity, environmentally friendly, lighting-emitting diodes (LEDs) have been widely used in many applications, such as general lighting, street lighting, back light of liquid crystal display (LCD) and so on [1][2][3]. According to the non-linear currentvoltage (I-V) characteristic of LED, a constant current controlled LED driver is usually needed to regulate the output current injected to the LED loads.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Modified zero‐voltage‐switching single‐stage LED driver based on Class E converter with constant frequency control method

Zhang

Liu

Guan

et al. 2018

IET Power Electronics

View full text Add to dashboard Cite

This study presents an integrated-stage AC-DC lighting-emitting diode (LED) driver based on flyback and Class-E converter with high power factor (PF) with a wide range of the duty cycle. The flyback circuit works in discontinuous conduction mode to realise the PF correction function, and the Class-E circuit is used as DC-DC converter to transfer the energy to the LED load. By sharing the common switch of the two circuits, the cost of system can be decreased distinctly. In addition, the Class-E converter provides soft-switching operation in a resonant mode, which can improve the converter efficiency. By integrating the flyback and Class-E converters, the soft-switching characteristic is still kept. In addition, the LED driver can be operated with wide duty cycle range to achieve a design degree of freedom to regulate the output current at a constant working frequency which makes the design of EMI filter easier. The operational principles, detailed analysis and design considerations of the LED driver are presented. A 100 W prototype is presented in an experimental condition to certifying the validity of the proposed integrated-stage LED driver.

show abstract

“…Although there are already complex models that reliably reproduce the behaviour of the LED, taking into account even thermal effects, such as the one reported in [24, 25], these are not easy to implement when a new topology is being proposed, as is the case of several recent works [26–29] that deal with a recurring research topic such as the elimination of the output electrolytic capacitor in rectifiers. However, in the case of LED applications, they keep making the mistake of modelling the load as resistance, since their computations are based only on the voltage and power, ignoring the actual current, which will generate that the actual output ripples do not match those calculated.…”

Section: Introductionmentioning

confidence: 99%