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

Claim 6:
7. The voltage detection apparatus according to claim 5, wherein:
the capacitor has a first capacitor and a second capacitor that are connected in series;
a connection point that connects the first capacitor and the second capacitor is connected to an input terminal of the voltage output circuit to which the third reference voltage is supplied;
the voltage detection apparatus includes a voltage application circuit that applies a standard voltage to the connection point;
the voltage application circuit has an application switch that switches between a state in which the standard voltage is applied to the connection point and a state in which the standard voltage is not applied; and
the fault determining unit determines a fault in the voltage application circuit based on the third voltage and the standard voltage when the application switch is in a closed state.