Circuit to characterize matching of energy-storage components
AssigneeUnited Microelectronics Corp.
InventorChing-Hung Kao
Life of this patent
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Abstract
A circuit to characterize the matching of energy-storage components is provided. The circuit includes a linear resistor and a power source. The circuit is electrically connected to two serially connected energy-storage elements, for example, a pair of capacitors. The matching between the two capacitors can be evaluated by measuring the slopes of a function relating the input and the output voltageof the circuit.
Claims5
A circuit configured for checking a degree of a matching between a first energy-storage element and a second energy-storage element, wherein a second terminal of the first energy-storage element is coupled to a first terminal of the second energy-storage element, and the first energy-storage element and the second energy-storage element are electrically coupled in series;
- the circuit comprising:
- a linear resistor, wherein a first terminal thereof is electrically coupled to a signal output terminal of the circuit and a second terminal thereof is electrically coupled to a second terminal of the first energy-storage element and a first terminal of the second energy-storage element;
- and
- a power supply having an output terminal electrically coupled to the second terminal of the linear resistor, applying a plurality of voltages to a first terminal of the first energy-storage element and a second terminal of the second energy-storage element to ground, whereby the degree of the matching between the first energy-storage element and the second energy-storage element is obtained.
Dependencies are inferred from the claim text.