Title:
PWM CONVERSION CIRCUIT
Document Type and Number:
Japanese Patent JP2017163517
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a PWM formation circuit capable being used in a low voltage and low power consumption in a hearing aid or the like.SOLUTION: Two pairs of transistors 5 in which an emitter is earthed, and a collector is connected to a first power source through a resistance 8 are provided. A base of one transistor is connected to the collector of the other transistor through capacitance. The base of the other transistor is connected to the collector of one transistor through the capacitance, thereby constructing an astable FF circuit. A PWM modulation signal voltage source 10 and a resistance 9 are serially connected between the base of each transistor and the first power source.SELECTED DRAWING: Figure 6
Inventors:
KUNO TAKASHI
Application Number:
JP2016066733A
Publication Date:
September 14, 2017
Filing Date:
March 10, 2016
Export Citation:
Assignee:
MIMII DENSHI KK
International Classes:
H03K7/08
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