Converter circuit design, semiconductor device selection and analysis of parasitics for micropower electrostatic Generators

Stark, Bernard H.; Mitcheson, PD; Miao, Peng; Green, Tim; Yeatman, Eric M.; Holmes, Andrew S.

doi:10.1109/tpel.2005.861113

Cited by 58 publications

(22 citation statements)

References 17 publications

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“…In an analysis of power processing circuits for the CFPG, it was shown that the power converter attached to this device needs to have an off-state impedance of more than 10 12 and less than 1 pF of input capacitance to maintain 80% of the generated energy [173]. To achieve this high level of impedance, a thin-layer silicon-oninsulator MOSFET was designed.…”

Section: Power Electronics For Micropower Generatorsmentioning

confidence: 99%

Energy Harvesting From Human and Machine Motion for Wireless Electronic Devices

et al. 2008

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Section: Power Electronics For Micropower Generatorsmentioning

confidence: 99%

Energy Harvesting From Human and Machine Motion for Wireless Electronic Devices

et al. 2008

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“…A number of architectures of conditioning circuits exist [15]. Virtually in all of them, the transducer conditioning is adjusted by a control signal derived from the parameters of available external vibrations (that can, in the general case, vary).…”

Section: A Architecture Of a Vehmentioning

confidence: 99%

Complexity in heterogeneous systems on chips: Dsign and analysis challenges

Galayko¹,

Blokhina²,

Zianbetov³

et al. 2014

2014 IEEE International Symposium on Circuits and Systems (ISCAS)

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In this review paper, we define and discuss the concept of complexity for heterogeneous systems. Due to the current progress in fabrication technology, modern micro-scale integrated systems may have a large number of interacting elements. Each of those elements not only displays its own dynamical properties, but also, in the most general case, can be nonlinear or can belong to different physical domains. We consider two different examples of systems that are complex in the terms we use in this paper. The first example is a network of oscillators and is heterogeneous since it is a mixed-signal system. The second example is an electrostatic vibration energy harvester, a micro scale system combining elements from the mechanical and electrical domains. In both cases we discuss the challenges that arise at the stage of the system design.

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“…Unfortunately a 10 H inductor is difficult to integrate due to its physical size and due to constraints that must be placed on its parasitic capacitance [9]. It is preferable to use a lower inductor value.…”

Section: Requirements Relating To System Integrationmentioning

confidence: 99%

Comparison of SOI Power Device Structures in Power Converters for High-Voltage, Low-Charge Electrostatic Microgenerators

Stark

Green

2005

IEEE Trans. Electron Devices

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Abstract-An inertial generator based on a moving-plate capacitor can provide energy for medical sensors from low-frequency (human body) motion. The energy exists as a very small charge (4 nC) at high voltage (300 V). An initial proposal for power processing used a carefully scaled lateral power MOSFET-diode pair, which results in a low, but sufficient, energy yield. It was found that increasing the area of the MOSFET to reduce conduction loss is highly detrimental to the energy yield because of capacitive loading of the generator. This paper examines alternative device topologies which may greatly increase the energy yield for a given system size by increasing both the generation efficiency and the conversion efficiency. An insulated gate bipolar transistors (IGBT) and a MOS-triggered thyristor, both based on previous silicon-on-insulator MOSFET designs, are examined for their switching speed and losses using physics-based finite-element simulation. The scaling criteria to achieve optimum system effectiveness are discussed. The small charge available from the generator results in a brief conduction period which does not allow the devices to reach their steady-state carrier distributions. Nevertheless the IGBT, and especially the MOS-triggered thyristor, switch on faster than the MOSFET, run at higher current densities, and provide improved efficiency. This allows the devices to be reduced in area leading to less capacitive loading on the generator. It also allows a reduction in the value and volume of the circuit inductor without a onduction loss penalty.We describe the device behavior in detail for the various phases of the conversion cycle and illustrate device/circuit tradeoffs graphically. Requirements are outlined for the development of power devices for microgenerators in implanted medical sensors.Index Terms-Energy scavenging, insulated gate bipolar transistors (IGBTs), microelectromechanical systems (MEMS), microgenerators, MOS controlled thyristor, MOSFETs, pulse power switches, silicon-on-insulator (SOI).

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Converter circuit design, semiconductor device selection and analysis of parasitics for micropower electrostatic Generators

Cited by 58 publications

References 17 publications

Energy Harvesting From Human and Machine Motion for Wireless Electronic Devices

Energy Harvesting From Human and Machine Motion for Wireless Electronic Devices

Complexity in heterogeneous systems on chips: Dsign and analysis challenges

Comparison of SOI Power Device Structures in Power Converters for High-Voltage, Low-Charge Electrostatic Microgenerators

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