US 12,474,727 B2
Voltage generation circuit and semiconductor device
Koji Ooiwa, Yokohama (JP)
Assigned to KIOXIA CORPORATION, Tokyo (JP)
Filed by KIOXIA CORPORATION, Tokyo (JP)
Filed on May 14, 2024, as Appl. No. 18/663,832.
Application 18/663,832 is a continuation of application No. 18/194,686, filed on Apr. 3, 2023, granted, now 12,013,712.
Application 18/194,686 is a continuation of application No. 17/467,746, filed on Sep. 7, 2021, granted, now 11,681,318, issued on Jun. 20, 2023.
Claims priority of application No. 2021-045250 (JP), filed on Mar. 18, 2021.
Prior Publication US 2024/0295894 A1, Sep. 5, 2024
Int. Cl. G05F 3/24 (2006.01); G06F 13/16 (2006.01); G11C 16/04 (2006.01)
CPC G05F 3/24 (2013.01) [G06F 13/1668 (2013.01); G11C 16/0483 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A voltage generation circuit, comprising:
a voltage dividing circuit;
a first current path in parallel with the voltage dividing circuit between a first node and a second node, the first node being connected to a power source line, the power source line being configured to supply a first voltage, the first current path including a first transistor;
a second current path in parallel with the voltage dividing circuit between a third node and a fourth node, the third node being different from the second node, the fourth node being connected to a ground, the ground being configured to supply a second voltage, the second current path including a second transistor;
a bias circuit to which a third voltage is to be supplied;
a first output terminal connected to the second node;
a second output terminal connected to the third node; and
a switching circuit configured to switch connection of the first current path and the second current path based on the first voltage and the second voltage by using the first transistor and the second transistor, wherein
the first node, the second node, the third node, and the fourth node are connected in series in the voltage dividing circuit, and
when the first voltage is not supplied but the third voltage is supplied the switching circuit is configured to:
turn off the first transistor in the first current path to disconnect the first node to the first output terminal through the first current path, and
turn off the second transistor in the second current path to disconnect the fourth node to the second output terminal through the second current path.