Rectifying element and voltage converter comprising such a rectifying element

    公开(公告)号:US10608551B2

    公开(公告)日:2020-03-31

    申请号:US16052177

    申请日:2018-08-01

    Inventor: Frederic Gautier

    Abstract: A rectifying element includes a MOS transistor series-connected with a Schottky diode. A bias voltage is applied between the control terminal of the MOS transistor and the terminal of the Schottky diode opposite to the transistor. A pair of the rectifying elements are substituted for diodes of a rectifying bridge circuit. Alternatively, the control terminal bias is supplied from a cross-coupling against the Schottky diodes. In another implementation, the Schottky diodes are omitted and the bias voltage applied to control terminals of the MOS transistors is switched in response to cross-coupled divided source-drain voltages of the MOS transistors. The circuits form components of a power converter.

    Reversible AC-DC and DC-AC thyristor converter

    公开(公告)号:US10483874B2

    公开(公告)日:2019-11-19

    申请号:US16020431

    申请日:2018-06-27

    Abstract: A reversible converter includes a first field effect transistor and a second field effect transistor coupled in series between a first terminal and a second terminal for a DC voltage. A first thyristor and a second thyristor are coupled in series between the first and second terminals for the DC voltage. A third thyristor and a fourth thyristor are also coupled in series between the first and second terminals for the DC voltage terminals, but have an opposite connection polarity with respect to the first and second thyristors. A midpoint of connection between the first and second field effect transistors and a common midpoint of connection between the first and second thyristors and the third and fourth thyristors are coupled to AC voltage terminals. Actuation of the transistors and thyristors is controlled in distinct manners to operate the converter in an AC-DC conversion mode and a DC-AC conversion mode.

    CIRCUIT OF PROTECTION AGAINST ELECTROSTATIC DISCHARGES

    公开(公告)号:US20190326276A1

    公开(公告)日:2019-10-24

    申请号:US16388191

    申请日:2019-04-18

    Inventor: Mathieu ROUVIERE

    Abstract: An electrostatic discharge protection circuit includes a diode bridge in parallel with a thyristor and a first avalanche diode. The diode bridge is coupled between first and second nodes. The thyristor has an anode coupled to the first node and a cathode coupled to the second node. The first avalanche diode has a cathode coupled to the first node and an anode coupled to the second node. A second avalanche diode has a cathode coupled to the first node and an anode coupled to a gate of the thyristor. When an electrostatic discharge occurs, current flows through the diode bridge, into the first node, and is first dissipated by the avalanche diode and is thereafter also dissipated by the thyristor once the thyristor turns on.

    CIRCUIT OF PROTECTION AGAINST ELECTROSTATIC DISCHARGES

    公开(公告)号:US20190296545A1

    公开(公告)日:2019-09-26

    申请号:US16358964

    申请日:2019-03-20

    Inventor: Mathieu ROUVIERE

    Abstract: A circuit for protecting against electrostatic discharges includes two avalanche circuit components having different turn-on delays with respect to a beginning of an electrostatic discharge. The two avalanche circuit components are coupled in parallel. The avalanche circuit component closer to an output node has a turn-on delay on the order of 30 ns, while the avalanche circuit component closer to an input node has a turn-on delay on the order of 1 ns.

    BATTERY ENCAPSULATION METHOD
    27.
    发明申请

    公开(公告)号:US20190229302A1

    公开(公告)日:2019-07-25

    申请号:US16372604

    申请日:2019-04-02

    Inventor: Vincent JARRY

    Abstract: An electronic device includes a base substrate, and a plurality of battery substrates constructed from mica and being attached to the base substrate. An aggregate area of the base substrate is greater than an aggregate area of the plurality of battery substrates. The electronic device also includes a plurality of active battery layers, each active battery layer being attached to a different respective battery substrate, with each active battery layer having a smaller area than its corresponding battery substrate. A film is disposed over the plurality of active battery layers and sized such that the film extends beyond each active battery layer to contact each battery substrate, and such that the film extends beyond each battery substrate to contact the base substrate.

    RECTIFYING BRIDGE CONTROL CIRCUIT
    28.
    发明申请

    公开(公告)号:US20190222136A1

    公开(公告)日:2019-07-18

    申请号:US16362939

    申请日:2019-03-25

    Abstract: An AC/DC converter includes a first terminal and a second terminal to receive an AC voltage and a third terminal and a fourth terminal to deliver a DC voltage. A rectifying bridge is provided in the converter. A controllable switching or rectifying element has a control terminal configured to receive a control current. A first switch is coupled between a supply voltage and the control terminal to inject the control current. A second switch is coupled between the control terminal and a reference voltage to extract the control current. The first and second switches are selectively actuated by a control circuit.

    Methods for encapsulating flexible thin-film micro-batteries to protect against environmental intrusion

    公开(公告)号:US10290838B2

    公开(公告)日:2019-05-14

    申请号:US14847137

    申请日:2015-09-08

    Inventor: Vincent Jarry

    Abstract: A battery encapsulation method includes disposing an active battery layer on each of a plurality of battery substrates, with each battery substrate having a greater area than its corresponding active battery layer. The plurality of battery substrates are attached to an interposer having a greater area than an aggregate area of the plurality of battery substrates. The active battery layers are environmentally sealed by disposing a film over the active battery layers sized such that the film extends beyond the active battery layers to contact the battery substrates and the interposer. The interposer is physically along locations where the film contacts the interposer so as to form a plurality of battery units, with each battery unit including one of the battery substrates with the associated active battery layer disposed thereon and being environmentally sealed by the film.

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