JPS558236A - Commutator motor controller - Google Patents
Commutator motor controllerInfo
- Publication number
- JPS558236A JPS558236A JP7987078A JP7987078A JPS558236A JP S558236 A JPS558236 A JP S558236A JP 7987078 A JP7987078 A JP 7987078A JP 7987078 A JP7987078 A JP 7987078A JP S558236 A JPS558236 A JP S558236A
- Authority
- JP
- Japan
- Prior art keywords
- relay
- variable resistor
- time constant
- capacitor
- circuit
- 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 start and rotate at low speed a commutator motor against large load torque at the motor starting time by providing a contact for bypassing a variable resistor of a first time constant circuit consisting of a resistor, the variable resistor and a capacitor via a relay of a second time constant circuit for predetermined time in parallel with the variable resistor.
CONSTITUTION: A circuit for bypassing a variable resistor VR by connecting a first time constant circuit to first and second anodes of a switching element Q and the normally open contact Rya of a realy Ry to both terminals of the variable resistor VR. A series circuit of the coil of the relay Ry and a capacitor C2 is connected across a zener diode ZD1 to thereby form a second time constant circuit to thus instantaneously operate the relay via constant DC voltage converted via the diode ZD1 to thereby complete charging of the capacitor C2 after predetermined time via the CR time constant of the resistance of the relay Ry and the capacitor C2 to thus reset the operation of the relay. Thus it can start and rotate at low speed a commutator motor against large load torque.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7987078A JPS558236A (en) | 1978-06-30 | 1978-06-30 | Commutator motor controller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7987078A JPS558236A (en) | 1978-06-30 | 1978-06-30 | Commutator motor controller |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS558236A true JPS558236A (en) | 1980-01-21 |
Family
ID=13702238
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7987078A Pending JPS558236A (en) | 1978-06-30 | 1978-06-30 | Commutator motor controller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS558236A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4822493U (en) * | 1971-07-21 | 1973-03-14 | ||
JPS5131011B2 (en) * | 1972-12-11 | 1976-09-04 |
-
1978
- 1978-06-30 JP JP7987078A patent/JPS558236A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4822493U (en) * | 1971-07-21 | 1973-03-14 | ||
JPS5131011B2 (en) * | 1972-12-11 | 1976-09-04 |
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