JPS555535A - Pulse width converter - Google Patents
Pulse width converterInfo
- Publication number
- JPS555535A JPS555535A JP7830878A JP7830878A JPS555535A JP S555535 A JPS555535 A JP S555535A JP 7830878 A JP7830878 A JP 7830878A JP 7830878 A JP7830878 A JP 7830878A JP S555535 A JPS555535 A JP S555535A
- Authority
- JP
- Japan
- Prior art keywords
- output
- pulse width
- voltage
- constitution
- input voltage
- 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 always keep constant the oscillating frequency, by providing the integrator adding and integrating the input voltage and the reference voltage and the comparator comparing this output voltage in comparison level with the pulse width converter of self-excitation type, and by changing the comparison level of the comparator with the input voltage in voltage division.
CONSTITUTION: The pulse width converter is constituted by providing the resistor R, capacitor C1, operational amplifiers A1 and A2 and further the switch SW1 switched according to the output of the amplifier A2 among the input terminal IN2 to which the reference voltage Vr is fed, input terminal IN1 to which the input voltage -e1 is fed, and the output terminal OUT. To the conventional converter with this constitution, the resistors R3 and R4, capacitor C2, operational amplifier A3, and switches SW1 and SW2 are provided to constitute the smoothing circuit FI having inversion performance. With this constitution, the switches SW2 and SW3 are operated according to the output of the comparator CO. The input voltage is made intermittent depending on the pulse width of output to keep the oscillation frequency constant.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7830878A JPS555535A (en) | 1978-06-28 | 1978-06-28 | Pulse width converter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7830878A JPS555535A (en) | 1978-06-28 | 1978-06-28 | Pulse width converter |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS555535A true JPS555535A (en) | 1980-01-16 |
JPS5741853B2 JPS5741853B2 (en) | 1982-09-06 |
Family
ID=13658294
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7830878A Granted JPS555535A (en) | 1978-06-28 | 1978-06-28 | Pulse width converter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS555535A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0502701A2 (en) * | 1991-03-04 | 1992-09-09 | Mikuni Corporation | Circuit for use in connection with signals representative of fuzzy information |
-
1978
- 1978-06-28 JP JP7830878A patent/JPS555535A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0502701A2 (en) * | 1991-03-04 | 1992-09-09 | Mikuni Corporation | Circuit for use in connection with signals representative of fuzzy information |
Also Published As
Publication number | Publication date |
---|---|
JPS5741853B2 (en) | 1982-09-06 |
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