Patent ID: 8907680
Filing Date: 2014-12-09
Classification: B60L,G01R,G06F,H02J,H02M,Y02T

Abstract:
1. A voltage detector for detecting a voltage generated in a second resonant coil that is disposed to face a first resonant coil and that performs at least one of electric power transmission and electric power reception to and from said first resonant coil in a contactless manner by means of electromagnetic resonance, said voltage detector comprising: a first high-impedance element having one end connected to one end of said second resonant coil: a second high-impedance element having one end connected to the other end of said second resonant coil; a low-impedance element connected between the other end of said first high-impedance element and the other end of said second high-impedance element and having an impedance smaller than each of those of said first and second high-impedance elements; and an output terminal for outputting a signal associated with a voltage applied across said low-impedance element, said first high-impedance element including a first capacitor, and said second high-impedance element including a second capacitor.