JPS54101739A - Slope-output controlling circuit for resistance welder - Google Patents
Slope-output controlling circuit for resistance welderInfo
- Publication number
- JPS54101739A JPS54101739A JP875678A JP875678A JPS54101739A JP S54101739 A JPS54101739 A JP S54101739A JP 875678 A JP875678 A JP 875678A JP 875678 A JP875678 A JP 875678A JP S54101739 A JPS54101739 A JP S54101739A
- Authority
- JP
- Japan
- Prior art keywords
- pulse
- settling
- block
- circuit
- firing
- 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
Abstract
PURPOSE: To prevent the magnetic variation of the welding transformer on purpose to perform good welding, by employing stepped waveform in which the step transit for every one cycle of the power-source-frequency, for the purpose of settling the firing angle of the switching element included in the welding power source circuit.
CONSTITUTION: The circuit is constituted of the block I that is the stepped-waveform-generating-circuit portion, and of the block II that is the firing-pulse-settling- circuit portion. In the clock circuit portion of the block I, the power source frequency, whose phase is to be controlled, is detected by the controlling transformer 5; and the clock pulse signal for every one cycle of the power source frequency is prepared by the diode 6 and the Schmitt type digital IC 7. This signal is inputted to the integrator including the operational amplifier 16. In the firing-pulse-settling- circuit of the block II, the pulse for settling the firing position is prepared by constituting the integrator, which receives the output signal of above operational amplifier 16 as the charge signal, of the operational amplifier 20, etc.; and the phase control pulse for the switching element is prepared through the pulse transformer 40.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP875678A JPS54101739A (en) | 1978-01-27 | 1978-01-27 | Slope-output controlling circuit for resistance welder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP875678A JPS54101739A (en) | 1978-01-27 | 1978-01-27 | Slope-output controlling circuit for resistance welder |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54101739A true JPS54101739A (en) | 1979-08-10 |
JPS573465B2 JPS573465B2 (en) | 1982-01-21 |
Family
ID=11701762
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP875678A Granted JPS54101739A (en) | 1978-01-27 | 1978-01-27 | Slope-output controlling circuit for resistance welder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54101739A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS645237Y2 (en) * | 1981-01-07 | 1989-02-09 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4840180A (en) * | 1971-09-24 | 1973-06-13 |
-
1978
- 1978-01-27 JP JP875678A patent/JPS54101739A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4840180A (en) * | 1971-09-24 | 1973-06-13 |
Also Published As
Publication number | Publication date |
---|---|
JPS573465B2 (en) | 1982-01-21 |
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