18097862. CHARGE PUMP CIRCUIT RELATED TO OVERVOLTAGE simplified abstract (SK hynix Inc.)

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CHARGE PUMP CIRCUIT RELATED TO OVERVOLTAGE

Organization Name

SK hynix Inc.

Inventor(s)

Giovanni Bellotti of Agrate Brianza (MB) (IT)

Miriam Sangalli of Agrate Brianza (MB) (IT)

Lorenzo Bonuccelli of Agrate Brianza (MB) (IT)

Marco Passerini of Agrate Brianza (MB) (IT)

CHARGE PUMP CIRCUIT RELATED TO OVERVOLTAGE - A simplified explanation of the abstract

This abstract first appeared for US patent application 18097862 titled 'CHARGE PUMP CIRCUIT RELATED TO OVERVOLTAGE

Simplified Explanation

The abstract describes a charge pump circuit that boosts a supply voltage to provide higher voltages at its output terminals. It includes a first charge pump that boosts the supply voltage to provide a first charge pump voltage, and a second charge pump that further boosts the first charge pump voltage to provide a second charge pump voltage. The circuit also includes a voltage drop sensing device that detects drops in the first charge pump voltage and deactivates certain transistors when a drop is detected.

  • The circuit includes a first charge pump that boosts the supply voltage.
  • The first charge pump provides a first charge pump voltage at its output terminal.
  • A second charge pump is connected to the output terminal of the first charge pump.
  • The second charge pump further boosts the first charge pump voltage.
  • The second charge pump provides a second charge pump voltage at its output terminal.
  • A voltage drop sensing device is included in the circuit.
  • The voltage drop sensing device detects drops in the first charge pump voltage.
  • When a drop in the first charge pump voltage is detected, the voltage drop sensing device deactivates certain transistors of bypass units associated with the disabled charge pump stages.

Potential applications of this technology:

  • Power management systems in electronic devices.
  • Voltage boosting in battery-powered devices.
  • Voltage regulation in integrated circuits.

Problems solved by this technology:

  • Efficiently boosting supply voltage to higher levels.
  • Detecting and compensating for drops in the charge pump voltage.
  • Preventing damage to the circuit due to voltage drops.

Benefits of this technology:

  • Improved power management efficiency.
  • Enhanced voltage regulation.
  • Protection against voltage drops and potential circuit damage.


Original Abstract Submitted

A charge pump circuit is provided, comprising: a first charge pump having an input terminal for receiving a supply voltage and configured to boost the received supply voltage to provide at an output terminal of the first charge pump a first charge pump voltage; a second charge pump having an input terminal coupled to the output terminal of the first charge pump for receiving the first charge pump voltage and configured to boost the received first charge pump voltage to provide at an output terminal of the second charge pump a second charge pump voltage, and a voltage drop sensing device configured to detect drops in the first charge pump voltage and to deactivate second transistors of bypass units associated to the disabled charge pump stages when a drop in the first charge pump voltage is detected.

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