JPS5660919A - Control method of high-voltage generator - Google Patents
Control method of high-voltage generatorInfo
- Publication number
- JPS5660919A JPS5660919A JP13607579A JP13607579A JPS5660919A JP S5660919 A JPS5660919 A JP S5660919A JP 13607579 A JP13607579 A JP 13607579A JP 13607579 A JP13607579 A JP 13607579A JP S5660919 A JPS5660919 A JP S5660919A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- increase rate
- voltage
- current
- spark discharge
- 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
- Application Of Or Painting With Fluid Materials (AREA)
- Electrostatic Spraying Apparatus (AREA)
- Control Of Voltage And Current In General (AREA)
- Control Of Electrical Variables (AREA)
Abstract
PURPOSE: To prevent spark discharge from occurring by grasping premonitory symptoms of the spark discharge by detecting the increase amount of the increase rate of the electric current of an electrostatic coating device.
CONSTITUTION: The voltage detector built in high-voltage generation part 4 detects a high-voltage output and then supplies its detection signal to inverter control part 6 to hold the output voltage constant, and high-frequency inverter circuit 1 is controlled by the output of control part 6 to control the primary side of high-voltage transformer 3. At this time, the secondary side current of transformer 3 is detected by current detector 5, whose detection value is applied to sampling differentiating circuit 7. This circuit 7 detects the increase rate of the current within the sampling time and holding-comparing circuit 8 holds the detected increase rate. Then, circuit 8 compares it to a previously held increase rate and when the increment exceeds the prescribed limit, the operation of circuit 1 is stopped via control prt 6 to prevent spark discharge from occurring.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13607579A JPS5660919A (en) | 1979-10-22 | 1979-10-22 | Control method of high-voltage generator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13607579A JPS5660919A (en) | 1979-10-22 | 1979-10-22 | Control method of high-voltage generator |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5660919A true JPS5660919A (en) | 1981-05-26 |
JPS6318766B2 JPS6318766B2 (en) | 1988-04-20 |
Family
ID=15166637
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13607579A Granted JPS5660919A (en) | 1979-10-22 | 1979-10-22 | Control method of high-voltage generator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5660919A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01310414A (en) * | 1988-06-08 | 1989-12-14 | Murata Mfg Co Ltd | High voltage power source device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52153148A (en) * | 1976-06-15 | 1977-12-20 | Mitsubishi Electric Corp | Trouble detector for thyristor leonard |
-
1979
- 1979-10-22 JP JP13607579A patent/JPS5660919A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52153148A (en) * | 1976-06-15 | 1977-12-20 | Mitsubishi Electric Corp | Trouble detector for thyristor leonard |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01310414A (en) * | 1988-06-08 | 1989-12-14 | Murata Mfg Co Ltd | High voltage power source device |
Also Published As
Publication number | Publication date |
---|---|
JPS6318766B2 (en) | 1988-04-20 |
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