JPS57139817A - Controller - Google Patents
ControllerInfo
- Publication number
- JPS57139817A JPS57139817A JP2444081A JP2444081A JPS57139817A JP S57139817 A JPS57139817 A JP S57139817A JP 2444081 A JP2444081 A JP 2444081A JP 2444081 A JP2444081 A JP 2444081A JP S57139817 A JPS57139817 A JP S57139817A
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- smoothly
- capacitor
- oscillation frequency
- period
- 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
- 230000010355 oscillation Effects 0.000 abstract 5
- 239000003990 capacitor Substances 0.000 abstract 3
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000010354 integration Effects 0.000 abstract 1
- 230000007257 malfunction Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B24/00—Open-loop automatic control systems not otherwise provided for
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
Abstract
PURPOSE:To prevent a malfunction in case when frequency is switched, by partially varying an oscillation frequency of an IC having a fixed resistance and a capacitor which have been provided outside, optionally setting a time interval in its period, and also smoothly varying the frequency. CONSTITUTION:A period in which a level of an output terminal (a) becomes low and a terminal (b) becomes a high level is decided by an internal circuit of an IC1. This IC1 executes oscillation by an oscillation frequency corresponding to a time constant by resistances 2, 4, a capacitor 3 and a transistor (TR) 5, which have been provided outside. Outputs of the terminals (a), (b) are converted to inverted outputs by an NOR gate 6 and an inverter 7. Subsequently, base voltage of the TR5 is varied smoothly by an integration circuit consisting of resistances 8, 9 and a capacitor 10, and the oscillation frequency of th IC1 is decreased smoothly. Accordingly, it is possible not only to optionally set the oscillation frequency of the IC1 and its period longer than a regular time interval by values of each resistance and condenser, but also to switch the frequency smoothly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2444081A JPS57139817A (en) | 1981-02-20 | 1981-02-20 | Controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2444081A JPS57139817A (en) | 1981-02-20 | 1981-02-20 | Controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57139817A true JPS57139817A (en) | 1982-08-30 |
Family
ID=12138198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2444081A Pending JPS57139817A (en) | 1981-02-20 | 1981-02-20 | Controller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57139817A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6238610U (en) * | 1985-08-23 | 1987-03-07 | ||
| CN106026745A (en) * | 2016-05-20 | 2016-10-12 | 广东百事泰电子商务股份有限公司 | Control chip for photovoltaic inverter integrated system |
-
1981
- 1981-02-20 JP JP2444081A patent/JPS57139817A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6238610U (en) * | 1985-08-23 | 1987-03-07 | ||
| JPH0514249Y2 (en) * | 1985-08-23 | 1993-04-16 | ||
| CN106026745A (en) * | 2016-05-20 | 2016-10-12 | 广东百事泰电子商务股份有限公司 | Control chip for photovoltaic inverter integrated system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5625290A (en) | Semiconductor circuit | |
| JPS57139817A (en) | Controller | |
| JPS5673919A (en) | Oscillation circuit | |
| JPS6439830A (en) | A/d converter | |
| JPS5483759A (en) | Mos inverter circuit | |
| JPS6477217A (en) | Variable clock delay circuit utilizing rc time constant | |
| GB1475724A (en) | Pulse generator circuits | |
| JPS6434012A (en) | Oscillation circuit | |
| JPS54113051A (en) | Integrating circuit of time-limit relay | |
| JPS57112135A (en) | Mos type analogue switch integrated circuit | |
| KR880002864Y1 (en) | Time delay circuit | |
| JPS6432715A (en) | Semiconductor integrated circuit device | |
| JPS5544272A (en) | Voltage-pulse width conversion circuit | |
| JPS5510267A (en) | Switching circuit | |
| SU851773A1 (en) | Timer | |
| JPS56165986A (en) | Voltage hold circuit | |
| JPS57201332A (en) | Electronic circuit device | |
| JPS57109406A (en) | Oscillating circuit | |
| JPS5739624A (en) | Logical gate circuit | |
| TW428309B (en) | Frequency adjusting method and device for oscillator built in the integrated circuit | |
| SU813711A1 (en) | Multivibrator | |
| JPS57181229A (en) | Driving circuit | |
| JPS5720021A (en) | Complementary mos transistor oscillating circuit | |
| JPS55100735A (en) | Oscillation circuit | |
| JPS55158726A (en) | Phase delay circuit |