Radio frequency apparatus and voltage generating device thereof
AssigneeRichWave Technology Corp.
InventorsHsien-Huang Tsai, Chih-Sheng Chen
Life of this patent
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Abstract
A radio frequency apparatus and a voltage generating device thereof are provided. The voltage generating device includes a first switch and a second switch. A first terminal of the first switch receives a first voltage. A control terminal of the first switch receives a second voltage. A first terminal of the second switch receives the second voltage. A control terminal of the second switch receives the first voltage. A second terminal of the second switch and a second terminal of the first switch are coupled to an output node, wherein the output node outputs an output voltage related to at least one of the first voltage and the second voltage.
Claims20
A voltage generating device, comprising:
- a first switch, having a first terminal configured to receive a first voltage, wherein a control terminal of the first switch is configured to receive a second voltage;
- a second switch, having a first terminal configured to receive the second voltage, wherein a control terminal of the second switch is configured to receive the first voltage, a second terminal of the second switch and a second terminal of the first switch are coupled to an output node, and the output node outputs an output voltage related to at least one of the first voltage and the second voltage,
- a third switch, coupled to the first switch;
- and
- a logic circuit, having a NAND gate, wherein the NAND gate of the logic circuit is coupled to the third switch and provides a control voltage to a control terminal of the third switch.
A voltage generating device comprising:
- a first switch, having a first terminal configured to receive a first voltage, wherein a control terminal of the first switch is configured to receive a second voltage;
- a second switch, having a first terminal configured to receive the second voltage, wherein a control terminal of the second switch is configured to receive the first voltage, a second terminal of the second switch and a second terminal of the first switch are coupled to an output node, and the output node outputs an output voltage related to at least one of the first voltage and the second voltage;
- a logic circuit;
- and
- a voltage generator, including a first diode circuit and a second diode circuit, wherein both the first diode circuit and the second diode circuit of the voltage generator are coupled to a power terminal of the logic circuit, wherein the voltage generator uses the first voltage and the second voltage to generate a regulating voltage, and the voltage generator outputs the regulating voltage to the power terminal of the logic circuit.
A radio frequency apparatus, comprising:
- a first switch, having a first terminal configured to receive a first voltage, wherein a control terminal of the first switch is configured to receive a second voltage;
- a second switch, having a first terminal configured to receive the second voltage, wherein a control terminal of the second switch is configured to receive the first voltage, a second terminal of the second switch and a second terminal of the first switch are coupled to an output node, and the output node outputs an output voltage related to at least one of the first voltage and the second voltage;
- a voltage regulating unit, coupled to the output node to receive the output voltage, and configured to generate at least one of a positive voltage and a negative voltage related to the output voltage;
- and
- a radio frequency circuit, coupled to the voltage regulating unit to receive the at least one of the positive voltage and the negative voltage, and configured to control a conducting state of at least one radio frequency transmission path of the radio frequency circuit according to the first voltage.
Dependencies are inferred from the claim text.