Title:
三角波発生回路
Document Type and Number:
Japanese Patent JP5412119
Kind Code:
B2
Abstract:
A triangle wave generating circuit comprising: a pulse generating circuit configured to generate a plurality of pulse signals with the same period and with phases different from one another; and a plurality of charge/discharge circuits configured to be supplied with the plurality of pulse signals, respectively, the plurality of charge/discharge circuits each including: a current supply circuit configured to supply to a capacitor a first current for charging at a predetermined current value or a second current for discharging at a predetermined current value; and a charge/discharge control circuit configured to switch between the first current and the second current when the pulse signals are supplied thereto and when a voltage across the capacitor reaches a predetermined reference voltage, the first current and the second current supplied from the current supply circuit to the capacitor.
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Inventors:
Oyagi Mitsuru
Tomoaki Nishi
Tomoaki Nishi
Application Number:
JP2009012281A
Publication Date:
February 12, 2014
Filing Date:
January 22, 2009
Export Citation:
Assignee:
Semiconductor Components Industries Limited Liability Company
International Classes:
H03K4/06
Domestic Patent References:
| JP2008306356A | ||||
| JP2007243922A | ||||
| JP2007215021A | ||||
| JP5226984A | ||||
| JP2004247828A | ||||
| JP62006522A | ||||
| JP2002217687A | ||||
| JP2007116685A |
Attorney, Agent or Firm:
Isshiki International Patent Service Corporation
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