The Effect of the Transformer Winding on the Reliability of Switching Power Supplies

Abdi, Babak; Menhaj, Mohammad Bagher; Yazdanparast, Leila; Milimonfared, Jafar

doi:10.1109/epepemc.2006.4778476

Cited by 8 publications

(6 citation statements)

References 2 publications

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“… The control structures of these converters are the same as the control circuit used in [9] whose reliability is also calculated in [9].…”

Section: International Journal Of Machinementioning

confidence: 99%

“…In this comparison, reliability is absent and is not considered, where as reliability is a key necessity in power electronic devices by which the life time, number of failures and associated cost are estimated. In [9], effect of leakage inductance on reduction of reliability of switching power supplies is discussed. In [10], the reliability of fuel cell DC-DC converters is calculated and optimum topology from reliability point of view is presented.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Reliability of MPPT Converter in Different Operating Modes

Abdi¹,

Mirtalaei²,

Ghasemi³

2013

IJMLC

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“… The control structures of these converters are the same as the control circuit used in [9] whose reliability is also calculated in [9].…”

Section: International Journal Of Machinementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Reliability of MPPT Converter in Different Operating Modes

Abdi¹,

Mirtalaei²,

Ghasemi³

2013

IJMLC

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“…The application of the product requires the power to be converted to maintain high reliability and stability. In order to pursue higher performance and smaller size, the switching frequency of power devices is becoming increasingly higher [2,3]. With the continuous improvement of the switching frequency in power devices, its reliability became a common and urgent problem that needs to be solved.…”

Section: Introductionmentioning

confidence: 99%

Reliability of Boost PFC Converters with Improved EMI Filters

et al. 2018

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The switching device in a power converter can produce very serious electromagnetic interference (EMI). In order to solve this problem and the associated reliability and stability issues, this article aimed to analyze and model the boost power factor correction (PFC) converter according to the EMI conduction path. The sources of common-mode (CM) and differential-mode (DM) noise of the boost PFC converter were analyzed, and the DM and CM equivalent circuits were deduced. Furthermore, high-frequency modeling of the common-mode inductor was developed using a precise model, and the EMI filter was designed. According to the Class B standard for EMI testing, it is better to restrain the EMI noise in the frequency range (150 kHz to 30 MHz) of the EMI conducted disturbance test. Using this method, a 2.4-kW PFC motor driving supply was designed, and the experimental results validate the analysis.

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“…Recently, reliability became to a prevalent issue in power electronic systems. The effect of transformer leakage inductance on SMPSs reliability is discussed in [2]. The effect of equivalent series resistance of capacitors on the reliability of SMPSs is presented in [3].…”

mentioning

confidence: 99%

The Effect of Electrolytic Capacitors on SMPS’s Failure Rate

Abdi¹,

Ghasemi²,

Mirtalaei³

2013

IJMLC

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Abstract-Recently, reliability is one of the serious requirements of electronic systems. The numbers of system failures, repair cost, guarantee and etc are estimated by reliability prediction. In this paper, the reliability of a switching power supply, which is used for personal computers, evaluates. It will show that electrolytic capacitors, used in input and output filters, play a significant role on the computer's power supply's life time. Ambient temperature, derating, and capacitance effect on the failure rate will discuss. The remedies are recommended for more life time.Index Terms-Electrolytic capacitor, reliability, SMPS, PC. I. INTRODUCTIONSwitch Mode Power Supplies (SMPSs) are used in Personal Computers (PCs), because of their high efficiency and low volume and weight. SMPSs are used in all PCs for convert the voltage to different levels and establish it against input voltage and load variations [1].The efficiency of joinery SMPSs, are used in PCs, is about 70% and all the power consumption of PC produced by subsystem. So they are the most critical point of PCs from reliability lookout and almost 90% of PC failures belong to their SMPSs.Lifetime and failure rate of a system can be predicted by reliability calculations. Recently, reliability became to a prevalent issue in power electronic systems. The effect of transformer leakage inductance on SMPSs reliability is discussed in [2]. The effect of equivalent series resistance of capacitors on the reliability of SMPSs is presented in [3]. Reliability modification of power electronic converter for full cell and photovoltaic application are discussed [4]- [6]. Dissertation of operating mode (continuous and discontinuous modes) with aim of reliability, for SMPSs, presented in [7] and using a single integrated power module (IPM) instead of paralleling power electronic devices are given in [8].The method of reliability calculation, for a PC's SMPS, is presented, and the most critical points are introduced in previous work [9]. It is shown that electrolytic capacitors have a major role in the SMPS's reliability.AC voltage is converted to DC via a rectifier and a bulk capacitor in the input stage of a SMPS. At the output stage of SMPSs, usually, an LC filter, which is composed of an inductor and a capacitor, is placed to filter out the ripple voltage and noises caused by the switching devices. So, it has Manuscript received January 5, 2013; revised May 18, 2013. This work was supported in part by Damavand Branch, Islamic Azad University.The Authors are with Damavand Branch, Islamic Azad University, Damavand, Tehran, Iran (e-mail: babakabdi@ieee.org).to be used some high capacitive capacitors in the input and output stages of SMPSs. Due to its large capacity and low cost, electrolytic capacitors with the abilities of energy storage and voltage regulation are used for filters of SMPSs. In order to reduce the size and cost, as well as to improve the performance of the SMPSs, different ratings of electrolytic capacitors are used in the design and construction proces...

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The Effect of the Transformer Winding on the Reliability of Switching Power Supplies

Cited by 8 publications

References 2 publications

Reliability of MPPT Converter in Different Operating Modes

Reliability of MPPT Converter in Different Operating Modes

Reliability of Boost PFC Converters with Improved EMI Filters

The Effect of Electrolytic Capacitors on SMPS’s Failure Rate

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