Title:
PULSE WIDTH MODULATING AMPLIFIER
Document Type and Number:
Japanese Patent JPH0794963
Kind Code:
A
Abstract:
PURPOSE: To provide a pulse width modulating amplifier capable of reducing output offset voltage and output noise and having excellent characteristics as to a pulse width modulating amplifier to be used for amplifying an output from an acoustic reproducing device.
CONSTITUTION: Since an AC amplifier is constituted by connecting a capacitor 24 to the minus terminal side resistor 17 of an operational amplifier 1 and connecting one end of the capacitor 24 to earth, offset voltage can be reduced up to a value peculiar to the amplifier 1 irrespectively of gain and higher-order noise can be reduced.
Inventors:
KONNO FUMIYASU
Application Number:
JP23452193A
Publication Date:
April 07, 1995
Filing Date:
September 21, 1993
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
H03F3/217; (IPC1-7): H03F3/217
Attorney, Agent or Firm:
Akira Kobiji (2 outside)
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