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Low-power digital systems based on adiabatic-switching principles

Low-power digital systems based on adiabatic-switching principles,10.1109/92.335009,IEEE Transactions on Very Large Scale Integration Systems,William

Low-power digital systems based on adiabatic-switching principles   (Citations: 202)
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Adiabatic switching is an approach to low-power digital circuits that differs fundamentally from other practical low-power techniques. When adiabatic switching is used, the signal energies stored on circuit capacitances may be recycled instead of dissipated as heat. We describe the fundamental adiabatic amplifier circuit and analyze its performance. The dissipation of the adiabatic amplifier is compared to that of conventional switching circuits, both for the case of a fixed voltage swing and the case when the voltage swing can be scaled to reduce power dissipation. We show how combinational and sequential adiabatic-switching logic circuits may be constructed and describe the timing restrictions required for adiabatic operation. Small chip-building experiments have been performed to validate the techniques and to analyse the associated circuit overhead.<>
Journal: IEEE Transactions on Very Large Scale Integration Systems - VLSI , vol. 2, no. 4, pp. 398-407, 1994
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    • ...ROCL is determined by whether there is a diabatic or adiabatic charging /discharging [19], in another words, whether the magnitude of charging/discharging current is restraint to be a small enough value or free of control...

    Xiaopeng Wanget al. Capacitor energy variation based designer-side switching losses analys...

    • ...But in VLSI, the electric charge transfer between nodes of a circuit is considered as the process and various techniques can be applied to minimize the energy loss during charge transfer event [1, 2]...
    • ...In practical cases, energy dissipation with a charge transfer event is composed of an adiabatic component and a non-adiabatic component [1-5]...
    • ...From VDD to 0 transition of the output node, energy stored in the load capacitance is dissipated in the NMOS network (/F) [1]...
    • ...Adiabatic logic circuits reduce the energy dissipation during switching process, and reuse the some of energy by recycling from the load capacitance [1, 2]. For recycling, the adiabatic circuits use the constant current source power supply and for reduce dissipation it uses the trapezoidal [6] or sinusoidal power supply voltage [7]...
    • ...Here R is on resistance of the PMOS network, CL is the load capacitance [1]...
    • ...978-1-4244-7926-9/11/$26.00 ©2011 IEEE 776 Fig.2 Equivalent model during charging process in adiabatic circuits. Energy dissipation in resistance R is [1],...
    • ...E also depends upon the charging time T, If T>> 2RC then energy dissipation will be smaller than the conventional CMOS [1]...
    • ...Hence adiabatic switching technique offers the less energy dissipation in PMOS network and reuses the stored energy in the output load capacitance by reversing the current source direction [1, 2]...

    Rakesh Kumar Yadavet al. Adiabatic technique for energy efficient logic circuits design

    • ...In conventional CMOS circuits, power dissipation can be minimized by reducing the supply voltage, node capacitance, and switching activity [1, 2] to a certain extent but very nascent adiabatic computing has appeared as a naturally acceptable and very practical solution in low power VLSI systems...
    • ...In conventional CMOS logic we use constant voltage source to charge the load capacitance [2]...

    Atul Kumar Mauryaet al. Energy Efficient Adiabatic Logic for Low Power VLSI Applications

    • ...recovered during discharging process and stored for reuse [4]...

    Howard Tanget al. An energy recovery approach for a charge redistribution successive app...

    • ...Bennett [4] showed that kTln 2 energy dissipation would not occur, if a computation is carried out in a reversible way, since the amount of energy dissipated in a system bears a direct relationship to the number of bits erased during computation...

    Yiqing Zhanget al. Function Modular Design of the DES Encryption System Based on Reversib...

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