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公开(公告)号：US11719232B2
公开(公告)日：2023-08-08
申请号：US17301951
申请日：2021-04-20
Applicant: MICROJET TECHNOLOGY CO., LTD.
Inventor： Hao-Jan Mou , Shih-Chang Chen , Che-Wei Huang , Chun-Hung Liao , Wei-Chuan Liao , Chi-Feng Huang , Yung-Lung Han , Tsung-I Lin , Chin-Wen Hsieh
CPC classification number: F04B43/046 , H10N30/802
Abstract: A driving system for driving piezoelectric pump includes one or more mechanical devices and a driving circuit system electrically connected to the at least one mechanical device. The driving circuit system includes a pump-driving unit, a linear voltage-stabilizing unit, a microcontroller unit, a current-sensing unit, and a connection unit. The microcontroller unit generates a first signal, a second signal, and a third signal, and the pump-driving unit receives these signals to drive the mechanical device. The current-sensing unit receives a fourth signal transmitted by the pump-driving unit to obtain an actuation current value of the mechanical device. The linear voltage-stabilizing unit, the current-sensing unit, and the microcontroller unit are coupled to each other through a fifth signal and a sixth signal. The connection unit and the microcontroller unit are coupled to each other through a reset signal, a seventh signal, and an eighth signal provided by the microcontroller unit.
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公开(公告)号：US20210332811A1
公开(公告)日：2021-10-28
申请号：US17301951
申请日：2021-04-20
Applicant: MICROJET TECHNOLOGY CO., LTD.
Inventor： Hao-Jan Mou , Shih-Chang Chen , Che-Wei Huang , Chun-Hung Liao , Wei-Chuan Liao , Chi-Feng Huang , Yung-Lung Han , Tsung-I Lin , Chin-Wen Hsieh
Abstract: A driving system for driving piezoelectric pump includes one or more mechanical devices and a driving circuit system electrically connected to the at least one mechanical device. The driving circuit system includes a pump-driving unit, a linear voltage-stabilizing unit, a microcontroller unit, a current-sensing unit, and a connection unit.
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公开(公告)号：US11286922B2
公开(公告)日：2022-03-29
申请号：US16677942
申请日：2019-11-08
Applicant: Microjet Technology Co., Ltd.
Inventor： Hao-Jan Mou , Shen-Wen Chen , Shih-Chang Chen , Chun-Hung Liao , Chi-Feng Huang , Yung-Lung Han , Chun-Yi Kuo
Abstract: A miniature piezoelectric pump module is provided and includes a piezoelectric pump, a microprocessor, a driving component and a feedback circuit. The piezoelectric pump includes two electrodes and a piezoelectric element and has the best efficiency while operating under an ideal operating voltage. The driving component is electrically connected to the microprocessor and the piezoelectric pump and includes a transform element and an inverting element. The transform element outputs an effective operating voltage to the piezoelectric pump. The inverting element controls the two electrodes to receive the effective operating voltage or to be grounded. The piezoelectric element is subjected to deformation for transporting fluid due to piezoelectric effect. The feedback circuit generates a feedback voltage according to the effective operating voltage. The microprocessor adjusts the modulation signal according to the feedback voltage for adjusting the effective operating voltage outputted by the transform element to approach the ideal operating voltage.
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公开(公告)号：US20200149524A1
公开(公告)日：2020-05-14
申请号：US16677942
申请日：2019-11-08
Applicant: Microjet Technology Co., Ltd.
Inventor： Hao-Jan Mou , Shen-Wen Chen , Shih-Chang Chen , Chun-Hung Liao , Chi-Feng Huang , Yung-Lung Han , Chun-Yi Kuo
Abstract: A miniature piezoelectric pump module is provided and includes a piezoelectric pump, a microprocessor, a driving component and a feedback circuit. The piezoelectric pump includes two electrodes and a piezoelectric element and has the best efficiency while operating under an ideal operating voltage. The driving component is electrically connected to the microprocessor and the piezoelectric pump and includes a transform element and an inverting element. The transform element outputs an effective operating voltage to the piezoelectric pump. The inverting element controls the two electrodes to receive the effective operating voltage or to be grounded. The piezoelectric element is subjected to deformation for transporting fluid due to piezoelectric effect. The feedback circuit generates a feedback voltage according to the effective operating voltage. The microprocessor adjusts the modulation signal according to the feedback voltage for adjusting the effective operating voltage outputted by the transform element to approach the ideal operating voltage.
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