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US 9,000,813 B2Granted
Waveform generation circuit
AssigneeMagnaChip Semiconductor, Ltd.
InventorKyu-Young Chung
Life of this patent
Estimating the term…
Abstract
Waveform generation circuits are provided. A waveform generation circuit includes a waveform generation block configured to generate a waveform signal corresponding to a driving control signal, and a control signal generation block configured to generate the driving control signal to compensate the waveform signal for an environmental factor affecting the waveform generation circuit.
Claims11
A waveform generation circuit, comprising:
- a waveform generation block configured to generate a waveform signal corresponding to a driving control signal, the waveform generation block comprising a variable current generation unit configured to generate a current corresponding to the driving control signal, and the variable current generation unit comprising a current source connected between a power source voltage terminal and an output terminal configured to output the waveform signal;
- and
- a control signal generation block configured to
- divide an internal reference voltage into a plurality of divided voltages,
- select one of the divided voltages based on comparisons of a voltage level of the waveform signal with reference voltages configured to define target voltage levels of the waveform signal, and
- generate the driving control signal according the one of the divided voltages.
3 more elements
A waveform generation circuit, comprising:
- a waveform generation block configured to generate a waveform signal corresponding to a driving control signal;
- and
- a control signal generation block configured to
- divide an internal reference voltage into a plurality of divided voltages,
- select one of the divided voltages based on comparisons of a voltage level of the waveform signal with reference voltages configured to define target voltage levels of the waveform signal, and
- generate the driving control signal according to the one of the divided voltages.
3 more elements
A waveform generation circuit, comprising:
- a waveform generation block configured to generate a waveform signal corresponding to a driving control signal;
- and
- a control signal generation block configured to generate the driving control signal based on comparisons of a voltage level of the waveform signal with reference voltages configured to define target voltage levels of the waveform signal,
- wherein the control signal generation block comprises a voltage dividing unit configured to divide an internal reference voltage into a plurality of divide voltages and select one of the divided voltage based on the comparisons of the voltage level of the waveform signal with the reference voltages, and a control signal output unit configured to generate the driving control signal according to the one of the divided voltages.
1 more element
Dependencies are inferred from the claim text.