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US 9,960,672 B2Granted
High voltage generator
AssigneesSK hynix Inc., Industry-University Cooperation Foundation Hanyang University
InventorsYoung-Il Kim, Sang-Sun Lee, Sung-Wook Choi
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Abstract
A high voltage generator includes a voltage converting device that increases a level of an input voltage and outputs an output voltage having a level higher than the level of the input voltage. The high voltage generator further includes a precharge controller that gradually increases the level of the input voltage up to a level of an external voltage based on a reference voltage and the output voltage.
Claims21
A high voltage generator comprising:
- a voltage converting device configured to output an output voltage having a level higher than a level of an input voltage;
- and
- a precharge controller configured to increase the level of the input voltage of the voltage converting device up to a level of an external voltage to prevent breakdown of a circuit in the voltage converting device receiving the input voltage based on a reference voltage and the output voltage of the voltage converting device,
- wherein the precharge controller comprises a voltage transmitting device configured to transmit the external voltage to an input node of the voltage converting device in response to a control signal, and
- wherein the voltage transmitting device includes a MOS transistor having a source connected to one of a node of the external voltage and the input node of the voltage converting device, a drain connected to the other of the node of the external voltage and the input node of the voltage converting device, and a gate receiving the control signal.
2 more elements
Dependencies are inferred from the claim text.