Discrete capacitance switching circuit and capacitor array circuit including the same
AssigneeKorea Advanced Institute of Science and Technology
InventorsJIN-HO KIM, HYUN-BAE KIM, KEON-WOO KIM, GUN-WOO MOON, MOO-HYUN PARK, JAE-IL BAEK
Life of this patent
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Abstract
A discrete capacitance switching circuit includes a DC decoupling capacitor connected between a power node that receives an AC signal and a first node, a diode connected between the first node and a second node, a unit capacitor connected between the second node and a reference node that receives a ground voltage, and a bias circuit. The bias circuit is configured to apply a first DC voltage to the first node and apply a second DC voltage to the second node. The applied first and second DC voltages control a switching operation of the diode.
Claims20
A discrete capacitance switching circuit, comprising:
- a direct current (DC) decoupling capacitor connected between a power node that receives an alternating current (AC) signal and a first node;
- a diode connected between the first node and a second node;
- a unit capacitor connected between the second node and a reference node that receives a ground voltage;
- and
- a bias circuit configured to apply a first DC voltage to the first node and apply a second DC voltage to the second node, wherein the first DC voltage and the second DC voltage control a switching operation of the diode.
A discrete capacitance switching circuit, comprising:
- a direct current (DC) decoupling capacitor connected between a power node that receives an alternating current (AC) signal and a first node;
- a diode comprising a cathode electrode connected to the first node and an anode electrode connected to a second node;
- a unit capacitor connected between the second node and a reference node that receives a ground voltage;
- a bias circuit configured to apply a first DC voltage to the first node and apply a second DC voltage to the second node, wherein the first DC voltage and the second DC voltage control a switching operation of the diode;
- a chalk inductor connected between the first node and a switching node;
- a first switch connected between the switching node and the reference node;
- a second switch connected between the switching node and a bias node that receives a bias voltage;
- a DC inductor connected between the second node and the reference node;
- and
- a reference capacitor connected between the power node and the reference node.
A capacitor array circuit, comprising:
- a reference capacitor connected between a power node that receives an alternating current (AC) signal and a reference node that receives a ground voltage;
- and
- a plurality of discrete capacitance switching circuits connected in parallel between the power node and the reference node,
- wherein each of the plurality of discrete capacitance switching circuits comprises:
- a direct current (DC) decoupling capacitor connected between the power node and a first node;
- a diode connected between the first node and a second node;
- a unit capacitor connected between the second node and the reference node;
- and
- a bias circuit configured to apply a first DC voltage to the first node and apply a second DC voltage to the second node, wherein the first DC voltage and the second DC voltage control a switching operation of the diode.
Dependencies are inferred from the claim text.