JPS6436255A - Feeding circuit - Google Patents
Feeding circuitInfo
- Publication number
- JPS6436255A JPS6436255A JP62192357A JP19235787A JPS6436255A JP S6436255 A JPS6436255 A JP S6436255A JP 62192357 A JP62192357 A JP 62192357A JP 19235787 A JP19235787 A JP 19235787A JP S6436255 A JPS6436255 A JP S6436255A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- circuits
- terminals
- input
- current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE:To reduce sound distortion or sensible noise by inserting a diode to a pre-stage of a voltage-current converting circuit converting a divided voltage between a power terminal and a terminal of a telephone set into a DC current flowing between the two terminals so as to avoid the clipping of a waveform with respect to an excess input. CONSTITUTION:A feeder circuit is constituted between power terminals 101, 105 and telephone set terminals 103, 107. Voltage division circuits 111, 121 output the voltage division voltage between the two terminals. Smoothing circuits 113, 123 smooth the output voltage of the circuits 111, 121. Voltage-current conversion circuits 115, 125 convert the output voltage of the smoothing circuits 113, 123 into the DC current flowing between the two terminals. Through the constitution above, diodes 117, 127 are inserted respectively to the pre-stage of the voltage-current conversion circuits 115, 125. Thus, the DC voltage between the terminals of the feeding circuits 110, 120 is the sum of the base-emitter voltage of the circuits 115, 125 and the forward voltage of the diodes 117, 127 in response to the AC input and the clipping strength of the waveform with respect to the excess optical input is improved.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62192357A JPS6436255A (en) | 1987-07-31 | 1987-07-31 | Feeding circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62192357A JPS6436255A (en) | 1987-07-31 | 1987-07-31 | Feeding circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6436255A true JPS6436255A (en) | 1989-02-07 |
Family
ID=16289933
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62192357A Pending JPS6436255A (en) | 1987-07-31 | 1987-07-31 | Feeding circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6436255A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5743409A (en) * | 1993-08-12 | 1998-04-28 | Nikon Corporation | Case for housing a substrate |
US8569367B2 (en) * | 2004-11-16 | 2013-10-29 | Allergan, Inc. | Ophthalmic compositions and methods for treating eyes |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61199397A (en) * | 1985-02-28 | 1986-09-03 | Nec Corp | Loop circuit for channel |
-
1987
- 1987-07-31 JP JP62192357A patent/JPS6436255A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61199397A (en) * | 1985-02-28 | 1986-09-03 | Nec Corp | Loop circuit for channel |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5743409A (en) * | 1993-08-12 | 1998-04-28 | Nikon Corporation | Case for housing a substrate |
US8569367B2 (en) * | 2004-11-16 | 2013-10-29 | Allergan, Inc. | Ophthalmic compositions and methods for treating eyes |
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