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US 10,296,033 B2Granted
Substrate voltage control circuit
AssigneePanasonic Corporation
InventorKazuhiro Adachi
Life of this patent
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Abstract
A substrate voltage control circuit comprising: a first connection terminal; a second connection terminal; a substrate voltage control terminal; a first switch having a first source, a first drain, and a first gate, the first source being connected to the substrate voltage control terminal, the first drain being connected to the first connection terminal; a first resistor connected between the first gate and the second connection terminal; a second switch having a second source, a second drain, and a second gate, the second source being connected to the substrate voltage control terminal, the second drain being connected to the second connection terminal; and a second resistor connected between the second gate and the first connection terminal.
Claims10
A substrate voltage control circuit comprising:
- a first connection terminal;
- a second connection terminal;
- a substrate voltage control terminal;
- a first switch having a first source, a first drain, and a first gate, the first source being connected to the substrate voltage control terminal, the first drain being connected to the first connection terminal;
- a first resistor connected between the first gate and the second connection terminal;
- a second switch having a second source, a second drain, and a second gate, the second source being connected to the substrate voltage control terminal, the second drain being connected to the second connection terminal;
- and
- a second resistor connected between the second gate and the first connection terminal,
- wherein the first switch becomes in an ON state and causes the first source and the first drain to be short-circuited to each other when voltage at the first gate relative to voltage at the first source is higher than threshold voltage of the first switch,
- the first switch becomes in an OFF state and causes the first source and the first drain to be open-circuited to each other when the voltage at the first gate relative to the voltage at the first source is lower than the threshold voltage of the first switch,
- the second switch becomes in an ON state and causes the second source and the second drain to be short-circuited to each other when voltage at the second gate relative to voltage at the second source is higher than threshold voltage of the second switch, and
- the second switch becomes in an OFF state and causes the second source and the second drain to be open-circuited to each other when the voltage at the second gate relative to the voltage at the second source is lower than the threshold voltage of the second switch.
9 more elements
A substrate voltage control circuit comprising:
- a first connection terminal;
- a second connection terminal;
- a substrate voltage control terminal;
- a first switch having a first source, a first drain, and a first gate, the first source being connected to the substrate voltage control terminal, the first drain being connected to the first connection terminal;
- a first resistor connected between the first gate and the second connection terminal;
- a second switch having a second source, a second drain, and a second gate, the second source being connected to the substrate voltage control terminal, the second drain being connected to the second connection terminal;
- a second resistor connected between the second gate and the first connection terminal;
- a first diode having a first anode and a first cathode, the first anode being connected to the first gate, the first cathode being connected to the second connection terminal;
- and
- a second diode having a second anode and a second cathode, the second anode being connected to the second gate, the second cathode being connected to the first connection terminal,
- wherein
- the first diode causes voltage at the first gate to be lower than threshold voltage of the first switch so as to set the first switch to an OFF state, by the time that voltage at the second connection terminal becomes equal to voltage at the first connection terminal, and
- the second diode causes voltage at the second gate to be lower than threshold voltage of the second switch so as to set the second switch to an OFF state, by the time that the voltage at the first connection terminal becomes equal to the voltage at the second connection terminal.
10 more elements
A substrate voltage control circuit comprising:
- a first connection terminal;
- a second connection terminal;
- a substrate voltage control terminal;
- a first switch having a first source, a first drain, and a first gate, the first source being connected to the substrate voltage control terminal, the first drain being connected to the first connection terminal;
- a first resistor connected between the first gate and the second connection terminal;
- a second switch having a second source, a second drain, and a second gate, the second source being connected to the substrate voltage control terminal, the second drain being connected to the second connection terminal;
- a second resistor connected between the second gate and the first connection terminal;
- a first capacitor connected between the first connection terminal and the first gate;
- and
- a second capacitor connected between the second connection terminal and the second gate.
7 more elements
Dependencies are inferred from the claim text.