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

Claim 8:
9. The voltage detection apparatus according to claim 8, wherein:
the first voltage and the second voltage change within a predetermined output range based on changes in the voltage of the capacitor;
the input-side switch connects between the detection block and the capacitor such that a polarity of the voltage of the capacitor switches between a positive polarity and a negative polarity; and
the reference voltage supplying unit sets the first reference voltage and the second reference voltage to a voltage on a lower-limit side of the output range and sets the third reference voltage to a voltage on an upper-limit side of the output range when the polarity of the voltage of the capacitor is the positive polarity, and sets the first reference voltage and the second reference voltage to a voltage on the upper-limit side of the output range and sets the third reference voltage to a voltage on the lower-limit side of the output range when the polarity of the voltage of the capacitor is the negative polarity.