GB908499A - Improvements relating to stepped voltage generating circuits - Google Patents
Improvements relating to stepped voltage generating circuitsInfo
- Publication number
- GB908499A GB908499A GB2831460A GB2831460A GB908499A GB 908499 A GB908499 A GB 908499A GB 2831460 A GB2831460 A GB 2831460A GB 2831460 A GB2831460 A GB 2831460A GB 908499 A GB908499 A GB 908499A
- Authority
- GB
- United Kingdom
- Prior art keywords
- capacitor
- diode
- generated
- stepped
- waveform
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
- F42C15/20—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a securing-pin or latch is removed to arm the fuze, e.g. removed from the firing-pin
- F42C15/21—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a securing-pin or latch is removed to arm the fuze, e.g. removed from the firing-pin using spring action
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
- F42C15/20—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a securing-pin or latch is removed to arm the fuze, e.g. removed from the firing-pin
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K4/00—Generating pulses having essentially a finite slope or stepped portions
- H03K4/02—Generating pulses having essentially a finite slope or stepped portions having stepped portions, e.g. staircase waveform
- H03K4/023—Generating pulses having essentially a finite slope or stepped portions having stepped portions, e.g. staircase waveform by repetitive charge or discharge of a capacitor, analogue generators
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K4/00—Generating pulses having essentially a finite slope or stepped portions
- H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
- H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
- H03K4/80—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements multi-layer diodes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Vibration Dampers (AREA)
- Radar Systems Or Details Thereof (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
- Video Image Reproduction Devices For Color Tv Systems (AREA)
Abstract
908,499. Stepped voltage generating circuits. ASSOCIATED ELECTRIC INDUSTRIES Ltd. Aug. 4, 1961 [Aug. 16, 1960], No. 28314/60. Class 40 (6). In a stepped voltage generator in which a capacitor C1 is alternately charged and discharged, the discharge being into a storage capacitor C2 across which a stepped time-base waveform is generated, a PNPN diode is connected across the storage capacitor C2 and arranged to trigger and discharge it when a predetermined voltage is reached. Capacitor C1 is charged by the negative excursion of the square input pulse through diode D1 and then discharged by diode D2 during the positive excursion of the input pulse into capacitor C2, the voltage across C2 being applied to the grid of valve V1 such that a rising staircase waveform is generated across cathode resistor R. When a predetermined voltage across the capacitor C2 is reached the PNPN diode triggers and discharges this capacitor. In a second embodiment, Fig. 2 (not shown), a falling staircase waveform is generated. In this case diodes D1, D2 and the PNPN diode are reversed in polarity and a Zener diode is included between the cathode of the valve and the cathode resistor. An application of the circuits is to lock the frame and line scan generators in television apparatus, a line scan occurring at each step and the total waveform constituting a frame scan.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2374552A GB708499A (en) | 1960-08-16 | 1952-09-22 | Improvements in or relating to fuses for bombs and projectiles |
GB2831460A GB908499A (en) | 1960-08-16 | 1960-08-16 | Improvements relating to stepped voltage generating circuits |
FR870677A FR1298625A (en) | 1960-08-16 | 1961-08-11 | Staircase voltage generator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2831460A GB908499A (en) | 1960-08-16 | 1960-08-16 | Improvements relating to stepped voltage generating circuits |
Publications (1)
Publication Number | Publication Date |
---|---|
GB908499A true GB908499A (en) | 1962-10-17 |
Family
ID=10273682
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2374552A Expired GB708499A (en) | 1960-08-16 | 1952-09-22 | Improvements in or relating to fuses for bombs and projectiles |
GB2831460A Expired GB908499A (en) | 1960-08-16 | 1960-08-16 | Improvements relating to stepped voltage generating circuits |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2374552A Expired GB708499A (en) | 1960-08-16 | 1952-09-22 | Improvements in or relating to fuses for bombs and projectiles |
Country Status (1)
Country | Link |
---|---|
GB (2) | GB708499A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1297660B (en) * | 1965-12-24 | 1969-06-19 | Siemens Ag | Method for n-fold increase in the delay time of a preferably electronic timing relay with RC element |
JPS49115457A (en) * | 1973-03-05 | 1974-11-05 | ||
GB2198305A (en) * | 1986-11-12 | 1988-06-08 | Crystal Semiconductor Corp | Staircase circuit for generating reference voltages |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2658600B1 (en) * | 1990-02-20 | 1992-06-12 | Mulleman Michel | EXERCISE BOMB. |
-
1952
- 1952-09-22 GB GB2374552A patent/GB708499A/en not_active Expired
-
1960
- 1960-08-16 GB GB2831460A patent/GB908499A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1297660B (en) * | 1965-12-24 | 1969-06-19 | Siemens Ag | Method for n-fold increase in the delay time of a preferably electronic timing relay with RC element |
JPS49115457A (en) * | 1973-03-05 | 1974-11-05 | ||
JPS5338074B2 (en) * | 1973-03-05 | 1978-10-13 | ||
GB2198305A (en) * | 1986-11-12 | 1988-06-08 | Crystal Semiconductor Corp | Staircase circuit for generating reference voltages |
GB2198305B (en) * | 1986-11-12 | 1991-02-20 | Crystal Semiconductor Corp | Method and circuitry for generating stair-step voltage waveforms |
Also Published As
Publication number | Publication date |
---|---|
GB708499A (en) | 1954-05-05 |
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