نتایج جستجو برای: power supply circuit

تعداد نتایج: 711613  

2011
Abhisek Dey Tarun Kanti Bhattacharyya

A high precision temperature compensated CMOS bandgap reference is presented. The proposed circuit employs current-mode architecture that improves the temperature stability of the output reference voltage as well as the power supply rejection when compared to the conventional voltage-mode bandgap referenc. Using only first order compensation the new architecture can generate an output reference...

Differential Power Analysis (DPA) implies measuring the supply current of a cipher-circuit in an attempt to uncover part of a cipher key. Cryptographic security gets compromised if the current waveforms obtained correlate with those from a hypothetical power model of the circuit. As FPGAs are becoming integral parts of embedded systems and increasingly popular for cryptographic applications and...

2014
NOREZMI JAMAL SHAKIR SAAT

This paper presents an Inductive Power Transfer (IPT) system design using a Class E converter circuit. The Class E converter is used to drive a nonlinear load and theoretically it offers 100% efficiency. To be specifically, the performance of IPT system at 1MHz operating frequency and 9V DC supply voltage is analyzed. Voltage doubler rectifier and Darlington circuit are proposed in this paper t...

2005
D. GRETKOWSKI A. GUZINSKI J. KANIEWSKI O. MASLENNIKOW

This paper deals with problems of logical level designing, modelling and simulations of digital, combinatorial circuits, which are based on the current mode gates – new digital elements operating with constant, continuous power supply current. For the modelling and simulation purpose some elements of standard Active – VHDL library IEEE1164 were changed. All designed circuits (one and four bits ...

2003
Wai-Ching Douglas Lam Cheng-Kok Koh Chung-Wen Albert Tsao

Simultaneous switching events in the clock lines and almost simultaneous switching events of sequential and combinational logic elements cause large L di dt and IR voltage variations in the power and ground network of a circuit. This is known as power supply noise and it affects the performance and reliability of the entire circuit. In this paper, we propose a genetic algorithm based clock sche...

Journal: :IEEJ Transactions on Industry Applications 1998

2006
Hamed Elsimary

This paper presents a 2.4 GHz 0.18 μm CMOS single-ended Variable Gain Low noise Amplifier (VGLNA). The circuit is suitable for low voltage, low power operation, uses a current-reuse topology to increase linear gain and save power consumption. The common-source gain stages are stacked for minimum power dissipation while maintaining high gain. The VGLNA exhibits noise figure less than 3 dB and ga...

2007
E M Yeatman

Power supply for electronics is one of the more recent application areas which has been explored for MEMS devices and techniques. Within this field, the most actively researched application has been MEMS power sources, particularly to replace batteries for portable electronic devices such as wireless sensor nodes. In addition, there are possibilities for MEMS devices in circuit protection, and ...

2005
Erik K. Reed Jonathan L. Paulsen

This paper describes a successful strategy for measuring the power dissipated by high-voltage, low-capacitance ceramic chip capacitors at frequencies typical of switch-mode power supplies. For these devices, the simpler techniques employed to measure the power dissipation of highcapacitance tantalum and aluminum devices prove inadequate, and a more fundamental approach is required. The various ...

Journal: :J. Low Power Electronics 2014
Karthik Naishathrala Jayaraman Vishwani D. Agrawal

Power dissipation in digital circuits has become a primary concern in electronic design. With increasing usage of portable devices, there are severe restrictions being placed on the size, weight and power of batteries. In this work, we propose a design of a dual Vth feedback type four-transistor level converter (DVF4) with reduced delay and power overheads. The use of DVF4 enhances the effectiv...

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