JPS54121919A - Single phase capacitor motor enabling variable frequency operation - Google Patents
Single phase capacitor motor enabling variable frequency operationInfo
- Publication number
- JPS54121919A JPS54121919A JP2958178A JP2958178A JPS54121919A JP S54121919 A JPS54121919 A JP S54121919A JP 2958178 A JP2958178 A JP 2958178A JP 2958178 A JP2958178 A JP 2958178A JP S54121919 A JPS54121919 A JP S54121919A
- Authority
- JP
- Japan
- Prior art keywords
- variable frequency
- single phase
- series
- capacitor
- auxiliary winding
- 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
Landscapes
- Control Of Ac Motors In General (AREA)
Abstract
PURPOSE: To improve the efficiency of variable frequency operation by applying ignition signals to the single phase inverter and on-off signals to a number of capacitor changeover switches in series to the motor auxiliary winding based on variable setting frequency from a controller.
CONSTITUTION: Ignition signals are applied to the single phase inverter INV from the controller CTL to set variable frequency and DC voltage is converted into the AC voltage of variable frequency. For example, the capacitors C1 and C2 with the changeover switches SW1 and SW2 are connected in series to the auxiliary winding Lx which is arranged at a right angle to the main winding lm of the capacitor motor and in parallel to the start and power factor improvement type capacitor C1 and the SW1 and SW2 on-off signals are applied from the controller CTL according to the ignition signals. The capacitor C2 and C3 are also connected in series to the auxiliary winding Lx and the capacitance value is varied. The switch on-off signal is not applied for fixed frequency operation and the start and power factor improvement type capacitor C1 is connected in series to the auxiliary winding Lx.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2958178A JPS54121919A (en) | 1978-03-15 | 1978-03-15 | Single phase capacitor motor enabling variable frequency operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2958178A JPS54121919A (en) | 1978-03-15 | 1978-03-15 | Single phase capacitor motor enabling variable frequency operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54121919A true JPS54121919A (en) | 1979-09-21 |
Family
ID=12280054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2958178A Pending JPS54121919A (en) | 1978-03-15 | 1978-03-15 | Single phase capacitor motor enabling variable frequency operation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54121919A (en) |
-
1978
- 1978-03-15 JP JP2958178A patent/JPS54121919A/en active Pending
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