MOSFET duty cycle controller
AssigneeRenesas Electronics America Inc.
InventorsDong-Young Chang, Steven Ernest Finn
Life of this patent
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Abstract
An apparatus is disclosed that includes a duty cycle controller. The duty cycle controller includes a tuning circuit comprising a first field-effect transistor. The first field-effect transistor is configured to implement a capacitor. The duty cycle controller further includes an edge delay circuit. The edge delay circuit includes a second field-effect transistor that, when activated by an input clock signal of the duty cycle controller, is configured to connect a voltage source to an output clock signal of the duty cycle controller. The edge delay circuit further includes a third field-effect transistor that, when activated, is configured to connect the first field-effect transistor of the tuning circuit to the output clock signal.
Claims9
An apparatus comprising:
- a duty cycle controller comprising a tuning circuit, the tuning circuit comprising:
- a first field-effect transistor, the first field-effect transistor implementing a capacitor, the tuning circuit being configured to discharge the first field-effect transistor to delay a portion of an output clock signal of the duty cycle controller;
- a second field-effect transistor, the tuning circuit being configured to activate the second field-effect transistor to connect a source and a drain of the first field-effect transistor to a voltage source;
- and
- a third field-effect transistor, the tuning circuit being configured to activate the third field-effect transistor to connect the source and the drain of the first field-effect transistor to a ground.
Dependencies are inferred from the claim text.