JPS5556727A - Signal converting circuit - Google Patents
Signal converting circuitInfo
- Publication number
- JPS5556727A JPS5556727A JP13020978A JP13020978A JPS5556727A JP S5556727 A JPS5556727 A JP S5556727A JP 13020978 A JP13020978 A JP 13020978A JP 13020978 A JP13020978 A JP 13020978A JP S5556727 A JPS5556727 A JP S5556727A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- clocks
- clock
- potential
- point
- 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.)
- Granted
Links
Landscapes
- Analogue/Digital Conversion (AREA)
Abstract
PURPOSE: To shorten executive conversion time by varying a voltage by steps from zero to a power voltage by clocks, by applying it to one input terminal of a comparator together with an analog input voltage, and by applying a voltage, rising by a constant potential at fixed intervals of time, to the other input terminal of the comparator.
CONSTITUTION: Control circuit CNT, outputting clocks ϕ1...ϕ3, ϕS, ϕA, and ϕB, consists of two counters N1 and N2. Here, when power voltage VD is denoted by VD, clocks ϕ1...ϕ3, and ϕS are of 0...VDV in amplitude and input voltage V1 is between reference voltage Vref and 0V. Then, applying alternate clocks ϕA and ϕB to FETs T6 and T7 increase a potential at point A, constant potential by constant potential, and when the potential at point A becomes higher than that at point B, the output of comparator CMP is held high. Next, the number of clocks ϕA while clock ϕ3 is low and that of clocks ϕA while clock ϕ1 is low after clock ϕ3 changes from a low level to a high level are counted by counters N1 and N2 to find an unknown voltage, so that the executive conversion time can be shortened.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13020978A JPS5556727A (en) | 1978-10-23 | 1978-10-23 | Signal converting circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13020978A JPS5556727A (en) | 1978-10-23 | 1978-10-23 | Signal converting circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5556727A true JPS5556727A (en) | 1980-04-25 |
JPS6412124B2 JPS6412124B2 (en) | 1989-02-28 |
Family
ID=15028692
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13020978A Granted JPS5556727A (en) | 1978-10-23 | 1978-10-23 | Signal converting circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5556727A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51108561A (en) * | 1975-03-19 | 1976-09-25 | Nippon Electric Co | Anarogu deijitaruhenkankairo |
-
1978
- 1978-10-23 JP JP13020978A patent/JPS5556727A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51108561A (en) * | 1975-03-19 | 1976-09-25 | Nippon Electric Co | Anarogu deijitaruhenkankairo |
Also Published As
Publication number | Publication date |
---|---|
JPS6412124B2 (en) | 1989-02-28 |
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