GB2358294A - DC-DC converter - Google Patents
DC-DC converter Download PDFInfo
- Publication number
- GB2358294A GB2358294A GB0000757A GB0000757A GB2358294A GB 2358294 A GB2358294 A GB 2358294A GB 0000757 A GB0000757 A GB 0000757A GB 0000757 A GB0000757 A GB 0000757A GB 2358294 A GB2358294 A GB 2358294A
- Authority
- GB
- United Kingdom
- Prior art keywords
- direct current
- amplifier
- voltage
- static electricity
- high voltage
- 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.)
- Withdrawn
Links
- 230000003068 static effect Effects 0.000 claims abstract description 11
- 230000005611 electricity Effects 0.000 claims 5
- 230000001419 dependent effect Effects 0.000 claims 1
- 101001044053 Mus musculus Lithostathine-1 Proteins 0.000 abstract 1
- 238000004804 winding Methods 0.000 description 4
- 230000003321 amplification Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of DC power input into DC power output
- H02M3/22—Conversion of DC power input into DC power output with intermediate conversion into AC
- H02M3/24—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters
- H02M3/28—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC
- H02M3/325—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/338—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in a self-oscillating arrangement
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
An amplifier for use particularly in the automotive industry which is capable of converting a low voltage direct current supply I into a very high static voltage X with low power usage. An input regulator stage REG 1 is coupled between the direct current supply I and a self oscillating DC-AC-DC converter Q1, Q2, TR1 and D4 to provide the high voltage output X.
Description
2358294
PATENT SPECIFICATION
This invention relates to a device for the amplification of a low voltage direct current supply into very high static voltage at low power levels. The level of the voltage produced can be controlled.
The device has applications in many fields as a power source, particularly in the automotive industry as it has the ability to produce high static voltages without drawing high direct currents. In comparison, conventional devices for generating high static voltages require very much higher power inputs.
The invention consists of a printed circuit board comprising the following elements; Regulator stage; DC voltage from 8V to 37V is input at I, being the positive connection to the supply. F1 is a fuse through which a lowvoltage DC current passes to diode Dl. Fl protects the circuit from overload, DI protects the, circuit from connection to the wrong polarity. DI feeds regulator Regl, which via resistor R1 and R2 produces a regulated output voltage. This voltage can be varied by varying the resistance of R2. The output of Regl is modulated and smoothed by capacitor C I. R3 is a current limiter. Light-emitting diode LED I is illuminated when the device is operational.
Driver stage; C2 is charged by R4 and R5. As C2 is charged and reaches 2/3 of its threshold voltage it discharges rapidly into the base of transistor Ql. A current of approximately IA from Q1 is fed into Q2, modulated by R6. This current flows through winding A of C) transformer Trl. A current is induced in winding B of Trl ("the sense loop"), which causes the current energising Q1 and Q2 to cease, switching off Q1 and Q2. The current flow in winding A ceases, collapsing the magnetic field of Trl. The cycle then begins again controlled by the negative feedback loop described above.
The magnetic field in Trl oscillates rapidly, generating a back-EMF in TH. Winding B controls the saturation of the core of TrI to maximise the output for minimum input. The cycle described above induces a high voltage in the secondary winding C of Trl. C3 and D4 control this voltage which is output as a static voltage at X. The level of this voltage is controlled by R2.
I The following drawing illustrates the device; figure 1 -circuit diagram 1: 1 I
Claims (5)
- CLAIMS 1. an amplifier of low voltage direct current to high voltagestatic electricity
- 2. an amplifier of low voltage direct current to high voltage static electricity as claimed in z claim 1, operational from input voltages of 8 volts and upwards, the voltages dependent on Regl
- 3. an amplifier of low voltage direct current to high voltage static electricity as claimed in claim I or claim 2, stable to within 5% across the range of output voltages
- 4. an amplifier of low voltage direct current to high voltage static electricity as claimed in 1:1 claim 3 capable of producing output of 1000 volts from I volt DC supply
- 5. an amplifier of low voltage direct current to high voltage static electricity as claimed in claim 4 capable of producing a variable and controllable static voltage 3
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0000757A GB2358294A (en) | 2000-01-14 | 2000-01-14 | DC-DC converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0000757A GB2358294A (en) | 2000-01-14 | 2000-01-14 | DC-DC converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB0000757D0 GB0000757D0 (en) | 2000-03-08 |
| GB2358294A true GB2358294A (en) | 2001-07-18 |
Family
ID=9883631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0000757A Withdrawn GB2358294A (en) | 2000-01-14 | 2000-01-14 | DC-DC converter |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2358294A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1003891A (en) * | 1960-09-30 | 1965-09-08 | Lab For Electronics Inc | Apparatus for vehicular speed measurements |
| GB1126081A (en) * | 1965-02-19 | 1968-09-05 | Atomenergi Ab | Stabilized high voltage supply unit |
| GB1188117A (en) * | 1966-09-29 | 1970-04-15 | Marconi Instruments Ltd | Improvements in or relating to Oscillator Circuit Arrangements |
| GB1425506A (en) * | 1972-03-03 | 1976-02-18 | Redelec | High-voltage dc generator in an electrostatic apparatus |
| GB1528406A (en) * | 1976-06-15 | 1978-10-11 | Westinghouse Air Brake Co | Converter-regulator circuit arrangement |
| GB1547320A (en) * | 1976-07-02 | 1979-06-06 | Raytheon Co | Regulated power supply circuit |
| GB1602462A (en) * | 1977-04-02 | 1981-11-11 | Lucas Industries Ltd | Battery charging systems for road vehicles |
-
2000
- 2000-01-14 GB GB0000757A patent/GB2358294A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1003891A (en) * | 1960-09-30 | 1965-09-08 | Lab For Electronics Inc | Apparatus for vehicular speed measurements |
| GB1126081A (en) * | 1965-02-19 | 1968-09-05 | Atomenergi Ab | Stabilized high voltage supply unit |
| GB1188117A (en) * | 1966-09-29 | 1970-04-15 | Marconi Instruments Ltd | Improvements in or relating to Oscillator Circuit Arrangements |
| GB1425506A (en) * | 1972-03-03 | 1976-02-18 | Redelec | High-voltage dc generator in an electrostatic apparatus |
| GB1528406A (en) * | 1976-06-15 | 1978-10-11 | Westinghouse Air Brake Co | Converter-regulator circuit arrangement |
| GB1547320A (en) * | 1976-07-02 | 1979-06-06 | Raytheon Co | Regulated power supply circuit |
| GB1602462A (en) * | 1977-04-02 | 1981-11-11 | Lucas Industries Ltd | Battery charging systems for road vehicles |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0000757D0 (en) | 2000-03-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7030572B2 (en) | Lighting arrangement | |
| CN101316070B (en) | Method and apparatus to control two regulated outputs of a flyback power supply | |
| KR101480687B1 (en) | Buck converter for making power available to at least one led | |
| TW200625801A (en) | Power supply driver circuit | |
| KR960027297A (en) | Controller for switching power supply and switching power supply using same | |
| EP1130753A3 (en) | Switching power supply apparatus | |
| CN110401347B (en) | DC power supply device | |
| US6081439A (en) | Inverter provided with output regulating mechanism | |
| JP4741942B2 (en) | LED lighting device | |
| CN1483236B (en) | Step-down regulator | |
| KR940022994A (en) | Self-contained DC-DC Converter | |
| JP2574261Y2 (en) | Switching power supply circuit | |
| JPH07255168A (en) | DC / DC converter for generating a plurality of signals | |
| US6285569B1 (en) | Switched mode power supply controller circuit and method thereof | |
| GB2358294A (en) | DC-DC converter | |
| CN102801312B (en) | Power Supplies and Ripple Reduction Methods | |
| JP4846107B2 (en) | Power supply controller and its configuration | |
| CN223093672U (en) | Switching power supply control circuit with constant operating frequency | |
| CN220570463U (en) | Load adjustable circuit, power supply circuit, circuit board and electronic equipment | |
| CN211352047U (en) | Voltage conversion circuit | |
| JPH04251563A (en) | Switching regulator | |
| JP3603170B2 (en) | Inverter with output adjustment mechanism | |
| KR0114979Y1 (en) | Output control circuit of power supply | |
| KR0119799B1 (en) | Ringing Choke Converter Using Morse Transistor | |
| KR950003023Y1 (en) | Circuit for switching mode power supply |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |