Analysis and reduction of radiated EMI noise from converter systems

Igarashi, Seiki; Takizawa, Satoki; Kuroki, K.; Shimizu, Toshihisa

doi:10.1002/(sici)1520-6416(200001)130:1<106::aid-eej13>3.0.co;2-3

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Cited by 5 publications

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Research and design of a novel current mode charge pump

Li¹,

Xinquan²,

Li³

et al. 2009

J. Semicond.

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To meet the demands for a number of LEDs, a novel charge pump circuit with current mode control is proposed. Regulation is achieved by operating the current mirrors and the output current of the operational transconductance amplifier. In the steady state, the input current from power voltage retains constant, so reducing the noise induced on the input voltage source and improving the output voltage ripple. The charge pump small-signal model is used to describe the device's dynamic behavior and stability. Analytical predictions were verified by Hspice simulation and testing. Load driving is up to 800 mA with a power voltage of 3.6 V, and the output voltage ripple is less than 45 mV. The output response time is less than 8 μs, and the load current jumps from 400 to 800 mA.

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Research and design of a novel current mode charge pump

Li¹,

Xinquan²,

Li³

et al. 2009

J. Semicond.

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show abstract

Modelling and simulation of power converters using the FDTD-SPICE approach

Felic

Evans

2003

2003 IEEE International Symposium on Electromagnetic Compatibility, 2003. EMC '03.

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Study of heat sink EMI effects in SMPS circuits

Felic

Evans²

2001 IEEE EMC International Symposium. Symposium Record. International Symposium on Electromagnetic Compatibility (Cat. No.01CH

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EMC is an integral part of Switching Mode Power Supply design. An optimal SMPS could be considered as one, which achieves the best possible compromise between power losses and EM1 disturbances, both of which are directly related to the switching speed of the device. Thus the process of finding an acceptable switching speed becomes a critical part of the design process. This paper considers heat sink aspects of this power loss/EMI trade-off.

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Analysis and reduction of radiated EMI noise from converter systems

Cited by 5 publications

References 3 publications

Research and design of a novel current mode charge pump

Research and design of a novel current mode charge pump

Modelling and simulation of power converters using the FDTD-SPICE approach

Study of heat sink EMI effects in SMPS circuits

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