Patent ID: 9106165
Filing Date: 2015-08-11
Classification: H02M,H02P

Abstract:
1. A voltage output circuit, comprising: an oscillator circuit configured to output an oscillation signal while changing an oscillation frequency thereof, the oscillator circuit configured to output the oscillation signal having the oscillation frequency determined according to a level of an applied voltage and to increase the oscillation frequency of the oscillation signal with increase in level of the applied voltage, and decrease the oscillation frequency of the oscillation signal with decrease in level of the applied voltage, wherein the oscillator circuit includes an odd number of a plurality of inverter circuits ring-connected and wherein each inverter circuit of the plurality of inverter circuits has a response time that decreases with an increase in level of the applied voltage, which response time is a time period from when an input voltage is inverted until when an output voltage is inverted, and has the response time increased with decrease in level of the applied voltage; and a voltage generating circuit configured to convert a first voltage into a second voltage higher than the first voltage, and output the second voltage, based on the oscillation signal.