Title:
出力回路
Document Type and Number:
Japanese Patent JP5608544
Kind Code:
B2
Abstract:
There is provided an output circuit for supplying an output current to a load coupled to an output terminal in response to an input signal. The output circuit includes an output transistor for supplying the output current to the output terminal, an output-drive circuit for driving the output transistor, a constant-current limiting circuit for generating a current control signal for limiting the output current to a predetermined current value, and a control circuit for implementing a control such that the output current is controlled on the basis of the current control signal if a voltage at the output terminal is at a predetermined voltage, or less after the input signal is supplied while the output transistor is driven by the output-drive circuit if the voltage at the output terminal is in excess of the predetermined voltage.
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Inventors:
Takayuki Yamauchi
Application Number:
JP2010286091A
Publication Date:
October 15, 2014
Filing Date:
December 22, 2010
Export Citation:
Assignee:
ルネサス electronics incorporated company
International Classes:
H03K17/08; G05F1/56; H05B44/00; H03K17/687
Attorney, Agent or Firm:
House ON 健