Patent ID: 11913997
Assignee: DENSO CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H  Y | IPC G  H

Claim 5:
6. The voltage detection apparatus according to claim 5, further comprising:
a voltage application circuit that applies a standard voltage to either electrode of the capacitor, wherein
the voltage application circuit is connected to a connection line that connects the output-side switch and the first differential voltage detection circuit, and has an application switch that switches between a state in which the standard voltage is applied to either electrode through the output-side switch and a state in which the standard voltage is not applied,
the first differential voltage detection circuit outputs a fourth voltage when the output-side switch is in an open state and the application switch is in a closed state, and
the fault determining unit determines a fault in the voltage application circuit based on the fourth voltage and the standard voltage.