Output circuit and output method
AssigneeOMRON Corporation
InventorsKazuaki MIYAMOTO, Ryota HASEGAWA, Hiroyuki TSUCHIDA
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Abstract
An output circuit outputs communication signals and communicates with an external device ED, and includes: a PNP first transistor, which is capable of outputting a collector current as the communication signals; and a first current source, which is capable of changing a base current of the first transistor, and which reduces the base current to a predetermined current value after the first transistor is turned on and before the first transistor is turned off
Claims20
An output circuit, which outputs communication signals and communicates with an external device, comprising:
- a first transistor which is PNP type, the first transistor is capable of outputting a collector current as the communication signals;
- and
- a first current source, which is capable of changing a base current of the first transistor, and reduces the base current to a predetermined current value after the first transistor is turned on and before the first transistor is turned off.
An output method, which is the output method of an output circuit that outputs communication signals and communicates with an external device, comprising a step in which
- a first current source, which is capable of changing a base current of a first transistor which is PNP type, reduces the base current to a predetermined current value after the first transistor is turned on and before the first transistor is turned off, wherein the first transistor is capable of outputting a collector current as the communication signals.
Dependencies are inferred from the claim text.