Electronic circuit and control method for electronic circuit
AssigneeSony Corporation
InventorAKITO SEKIYA
Life of this patent
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Abstract
To control a drive voltage of a transistor to be constant in a circuit that captures signals. A duty ratio control unit changes a duty ratio of a predetermined input periodic signal and outputs the predetermined input periodic signal as an output periodic signal. A transistor is a transistor that outputs an input signal input to a source from a drain as an output signal. A charge control unit charges the condenser with a predetermined voltage in a case in which the output periodic signal is not at a specific level. A transistor drive unit applies the charged predetermined voltage between a gate and the source of the transistor in a case in which the output periodic signal is at the specific level.
Claims8
An electronic circuit comprising:
- a duty ratio control unit configured to change a duty ratio of a predetermined input periodic signal and output the predetermined input periodic signal as an output periodic signal;
- a transistor configured to output an input signal input to a source from a drain as an output signal;
- a condenser;
- a charge control unit configured to charge the condenser with a predetermined voltage in a case in which the output periodic signal is not at a specific level;
- and
- a transistor drive unit configured to apply the charged predetermined voltage between a gate and the source of the transistor in a case in which the output periodic signal is at the specific level.
A control method for an electronic circuit, the control method comprising:
- a duty ratio control procedure of changing a duty ratio of a predetermined input periodic signal and outputting the predetermined input periodic signal as an output periodic signal;
- a charge control procedure of charging the condenser with a predetermined voltage in a case in which the output periodic signal is not at a specific level;
- and
- a transistor drive procedure of applying the charged predetermined voltage between a gate and a source of a transistor in a case in which the output periodic signal is at the specific level.
Dependencies are inferred from the claim text.