Apparatus and method for generating ramp signal
AssigneeKorea University Research and Business Foundation
InventorsChul Woo KIM, Min Seob SHIM, Jun Won JUNG, Jung Moon KIM, Jun Young MAENG
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Abstract
Provided is a ramp signal generating apparatus. The ramp signal generating apparatus includes N (N is a natural number) ramp signal generating cells that are connected in series to each other. Each of the ramp signal generating cells includes a power voltage unit for supplying current source, a latch unit for latching an output voltage of the power voltage unit, and a switch unit for outputting the voltage latched by the latch unit as an output voltage in response to an input signal.
Claims7
A ramp signal generating apparatus comprising N (N is a natural number) ramp signal generating cells that are connected in series to each other, wherein each of the ramp signal generating cells comprises:
- a power voltage unit for supplying current source;
- a latch unit for latching an output voltage of the power voltage unit;
- and
- a switch unit for outputting the voltage latched by the latch unit as an output voltage in response to an input signal.
A ramp signal generating method comprising:
- generating constant current from a reference voltage generator for generating a constant reference voltage;
- latching a voltage generated according to the constant current;
- and
- outputting the latched voltage in response to an input signal.
Dependencies are inferred from the claim text.