Patent ID: 11893435
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 4:
5. The internal voltage generation circuit of claim 1, wherein, in a third sub mode in the contact mode when a voltage level of the contact voltage is smaller than a first reference voltage and a second reference voltage and the second reference voltage is smaller than the first reference voltage,
the control signal generator is configured to disable the switched capacitor converter and the first contact switch, respectively, by using the first power-down signal and the first switching enable signal, in response to the first mode signal and the second mode signal,
the second contact switch is configured to switch the contact voltage having a first voltage level to the second node as the contact mode second driving voltage, and
the bidirectional switched capacitor converter is to be enabled in response to the second power-down signal, and is configured to boost the contact mode second driving voltage to output the contact mode first driving voltage having a second voltage level to the first node, the second voltage level being greater than the first voltage level.