2016
DOI: 10.3390/s16030389
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A Novel Digital Closed Loop MEMS Accelerometer Utilizing a Charge Pump

Abstract: This paper presents a novel digital closed loop microelectromechanical system (MEMS) accelerometer with the architecture and experimental evaluation. The complicated timing diagram or complex power supply in published articles are circumvented by using a charge pump system of adjustable output voltage fabricated in a 2P4M 0.35 µm complementary metal-oxide semiconductor (CMOS) process, therefore making it possible for interface circuits of MEMS accelerometers to be integrated on a single die on a large scale. T… Show more

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Cited by 12 publications
(9 citation statements)
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References 17 publications
(24 reference statements)
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“…A MEMS gyro sensitive structure fabrication process based on SOG and inductively coupled plasma deep reactive ion etching (ICP DRIE) with an aspect ratio of about 20 developed by Peking University is shown in Figure 11 a [ 26 , 27 , 28 ]. The starting wafers are 4 inch highly doped silicon wafer produced by OKMETIC (Vantaa, Finland) and a Pyrex 7740 glass wafer.…”
Section: Fabrication and Characterizationmentioning
confidence: 99%
“…A MEMS gyro sensitive structure fabrication process based on SOG and inductively coupled plasma deep reactive ion etching (ICP DRIE) with an aspect ratio of about 20 developed by Peking University is shown in Figure 11 a [ 26 , 27 , 28 ]. The starting wafers are 4 inch highly doped silicon wafer produced by OKMETIC (Vantaa, Finland) and a Pyrex 7740 glass wafer.…”
Section: Fabrication and Characterizationmentioning
confidence: 99%
“…Many demodulation schemes are available for angle sensors [19,20,21,22], but there is no integrated circuit that has been specifically designed for it. The common capacitive angular displacement sensor usually needs a high supply voltage which leads to large power consumption, and the demodulation circuit is complex and difficult to integrate.…”
Section: Introductionmentioning
confidence: 99%
“…Таким образом, подходы, широко применяемые в измерительной технике, имеют общий недостаток: необходимо снижать чувствительность прибора для расширения полосы пропускания вследствие особенностей линейного контура управления, используемого в подавляющем большинстве конструкций акселерометров [1,[4][5][6][7].…”
unclassified
“…Традиционно для измерения ускорения используется подвешенная на упругих элементах инерционная масса, которая может перемещаться вдоль оси чувствительности прибора [1,12]. В случае линейного контура измерения фиксируется перемещение инерционной массы под действием приложенного ускорения посредством измерения связанной с ней физической величины: напряжения, емкости, тока или силы, которую необходимо приложить для возврата инерционной массы в положение равновесия (компенсационные приборы) [5][6][7].…”
unclassified
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