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US 12,425,031 B2Granted
Inverter and bootstrap inverter with improved output characteristics
AssigneeHoseo University Academic Cooperation Foundation
InventorByung Seong Bae
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Abstract
The present invention provides an inverter and a bootstrap inverter with improved output characteristics. The inverter comprises a first and second load transistors, a driving transistor, and a control transistor. The control transistor, when turned on, effectively grounds the source of the first load transistor, ensuring a 0V output. The bootstrap inverter further includes a bootstrap transistor and a capacitor. This configuration solves the problems of output voltage being lower than VDD for logic ‘1’ and not completely 0V for logic ‘0’, achieving ideal output levels.
Claims2
An inverter, comprising:
- a first load transistor having a gate electrode and a drain electrode connected to a power supply voltage (VDD) terminal;
- a second load transistor having a gate electrode and a drain electrode connected to a source electrode of the first load transistor, and a source electrode connected to an output terminal;
- a driving transistor having a drain electrode connected to a source electrode of the second load transistor to constitute the output terminal, a gate electrode connected to an input (Vin) terminal, and a source electrode connected to a ground (GND) terminal;
- and
- a control transistor having a drain electrode connected to the source electrode of the first load transistor, a gate electrode connected to the input (Vin) terminal, and a source electrode connected to the ground (GND) terminal.
2 more elements
Dependencies are inferred from the claim text.