GB836672A - Control circuit for a stored-energy welder - Google Patents
Control circuit for a stored-energy welderInfo
- Publication number
- GB836672A GB836672A GB554758A GB554758A GB836672A GB 836672 A GB836672 A GB 836672A GB 554758 A GB554758 A GB 554758A GB 554758 A GB554758 A GB 554758A GB 836672 A GB836672 A GB 836672A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grid
- voltage
- screen
- capacitor
- control
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/24—Electric supply or control circuits therefor
- B23K11/26—Storage discharge welding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arc Welding Control (AREA)
- Generation Of Surge Voltage And Current (AREA)
Abstract
836,672. Automatic voltage-control systems for charging condensers. ROBOTRON CORPORATION. Feb. 20, 1958, No. 5547/58. Class 38 (4). In a stored-energy welder, the voltage across a capacitor 27 is maintained constant when charged by varying the D.C. bias applied to the control grids of a pair of thyratrons 12 and 13 supplying the charging current. The anode of a screen-grid thyratron 36 is supplied with A.C. from a winding 31, the screen grid is biased negatively, and the control grid voltage is derived from a potential divider 32, 33 connected across the discharge capacitor 27. When the voltage across the discharge capacitor exceeds a predetermined value, the screen-grid thyratron conducts, and the anode current flowing through a primary 37 of a transformer 24 induces an E.M.F. in a secondary 23 which rectified and smoothed by a rectifier 26 and a capacitor 21, biases to cut-off the control grids of thyratrons 12 and 13. A grid resistor 22 determines the time constant of the grid circuit of thyratrons 12 and 13, and a potentiometer 44 across a voltage regulator tube 41 adjusts the voltage to which the capacitor 27 is charged. In a further embodiment, Fig. 2 (not shown), the screen grid 47 is connected to the cathode of the screen grid thyratron and the adjustable tapping 50 on potentiometer 44 is connected to the control grid 39.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB554758A GB836672A (en) | 1958-02-20 | 1958-02-20 | Control circuit for a stored-energy welder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB554758A GB836672A (en) | 1958-02-20 | 1958-02-20 | Control circuit for a stored-energy welder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB836672A true GB836672A (en) | 1960-06-09 |
Family
ID=9798211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB554758A Expired GB836672A (en) | 1958-02-20 | 1958-02-20 | Control circuit for a stored-energy welder |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB836672A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007051422A1 (en) * | 2005-11-04 | 2007-05-10 | Zhang, Xiaobing | A rivet welding machine with low energy storing capacitor |
-
1958
- 1958-02-20 GB GB554758A patent/GB836672A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007051422A1 (en) * | 2005-11-04 | 2007-05-10 | Zhang, Xiaobing | A rivet welding machine with low energy storing capacitor |
| CN100395066C (en) * | 2005-11-04 | 2008-06-18 | 王建平 | Welding machine with both riveting and welding function and its special torch |
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