CN2410816Y - Power source module directly obtaining low voltage from electric supply - Google Patents
Power source module directly obtaining low voltage from electric supply Download PDFInfo
- Publication number
- CN2410816Y CN2410816Y CN 00202414 CN00202414U CN2410816Y CN 2410816 Y CN2410816 Y CN 2410816Y CN 00202414 CN00202414 CN 00202414 CN 00202414 U CN00202414 U CN 00202414U CN 2410816 Y CN2410816 Y CN 2410816Y
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- CN
- China
- Prior art keywords
- voltage
- power
- low voltage
- civil power
- resistance
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- 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 - Fee Related
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Abstract
The utility model relates to a power source module directly obtaining a low voltage from an electric supply, which relates to the step-down transformer field which changes high voltage into low voltage. The utility model has the technical characteristics that a detecting driving gear is arranged between a load or a capacitor and a rectifier or an output end, and the detecting driving gear is composed of a voltage stabilizing diode and a thyristor. The utility model has the advantages of novel design, compact structure, high reliability and stability, minimal power consumption and heat productivity and no no-load loss. The capacitability can improve a power factor of a system and an electric network.
Description
The utility model relates to the reducing transformer field that obtains low-voltage from high voltage, refers in particular to the small-power stabilized voltage power supply.
At present, obtain low-voltage, mainly the small-sized DC power supply that obtains with resistance, electric capacity, transformer step-down rectifier mode from civil power, therefore the stability and the reliability of power supply are not enough, and power consumption is big, caloric value is big, and no-load loss is big, and influence is to the use of the responsive strong electrical equipment of power supply.
The purpose of this utility model is to provide a kind of stability and reliability strong, the small-power power module of voltage regulation that the consumption heating amount is little.
The utility model is achieved by the following technical solution: promptly civil power connects a detection driver by load (electric capacity), promptly between voltage stabilizing didoe and resistance, be connected a controllable silicon, controllable silicon one end links to each other with resistance, and the other end links to each other with voltage-stabiliser tube one end and forms the loop; When full-wave rectification, voltage stabilizing didoe is a pair of or some right, and when halfwave rectifier, voltage stabilizing didoe is single or several.
The utility model power circuit is novel, and compact conformation also has high reliability and stability, and power consumption and caloric value are minimum.Because the output voltage of this power circuit only depends on the burning voltage Uz of voltage-stabiliser tube, so be particularly suitable for being applied in the small-power stabilized voltage power supply (in theory as long as line voltage is the output voltage of power circuit greater than its burning voltage Uz) that needs under the unstable line voltage situation with high reliability and stability, fully alternative traditional small-sized DC power supply with resistance, electric capacity and transformer step-down rectifier mode.No no-load loss, its capacitive also can improve the power factor (PF) of system and electrical network.
Fig. 1 is a kind of block diagram that directly obtains the power module of low-voltage from civil power.
Fig. 2 is a kind of line map that directly obtains the power module of low-voltage from civil power.
Fig. 3 is a kind of voltage oscillogram that directly obtains the power module of low-voltage from civil power.
As shown in Figure 1, establishing one and detect driver 2 between load (electric capacity) 1 and output, can be direct alternating current output 3, also can be by whole ripple (all-wave, half-wave) device 4 with direct current output 5.
As shown in Figure 2, detecting driver 2 is by voltage-stabiliser tube 6, voltage-stabiliser tube 7 is connected with resistance 8, pick out controllable silicon 9 (BT137) between voltage-stabiliser tube and the resistance, controllable silicon 9 other two ends link to each other with voltage-stabiliser tube 6 other ends with resistance 8 respectively and constitute a loop, and loop one end and civil power link, the other end or directly export with alternating current, or by whole ripple device direct current output, Fig. 2 a is full-wave rectification 10 (bridge rectifier), and voltage-stabiliser tube 6 is a pair of with voltage-stabiliser tube 7; Fig. 2 b is half-wave (diode 11), and voltage-stabiliser tube 6 is single.Output cross-over connection one electric capacity 12, the mains electricity input end connects load 13, electric capacity 14.Its working method is as follows: when civil power during less than voltage-stabiliser tube 6 (voltage-stabiliser tube) puncture voltage and burning voltage Uz, voltage stabilizing didoe ends, controllable silicon (SCR) 9 not conductings, civil power charges to capacitor 12 by capacitor 14 (load 13), diode 11 (bridge rectifier 10).All-wave voltage equals Uz+0.7V, and half-wave voltage then equals Uz.When civil power was increased to voltage-stabiliser tube 6 (voltage-stabiliser tube 7) puncture voltage and burning voltage Uz, the electric current that flows through voltage-stabiliser tube sharply increased and 9 conductings of triggering controllable silicon (SCR).Back civil power forms the power supply circuits mode of exclusive can connect with load 13 (parallel connection) to capacitor 14 chargings (or load 13 gets), is specially adapted to control switch load (as intelligent switch).When the civil power zero passage, 14 pairs of electrical networks of capacitor discharge, and have improved the power factor (PF) of system and electrical network, and controllable silicon (SCR) 9 ends, and goes round and begins again, and make power circuit obtain reliable and stable voltage, electric current.Adopt different voltage stabilizing didoes just can obtain required power supply voltage.Because lower power supply voltage (as less than 12V) concerning controllable silicon 9, has been the zero cross fired state, so switch power consumption and caloric value are minimum.
As shown in Figure 3, this power module output voltage is a dash area, because the decision of its operation principle utilizes preceding half-wave.
Claims (4)
1, a kind of power module that directly obtains low-voltage from civil power, comprise load (electric capacity), rectification, resistance etc., it is characterized in that civil power detects driver by load (electric capacity) and and connects, detect driver and form by connecting a controllable silicon between voltage stabilizing didoe and the resistance and forming a loop.
2, a kind of power module that directly obtains low-voltage from civil power as claimed in claim 1 is characterized in that voltage stabilizing didoe connect with resistance, and their centres pick out controllable silicon, and other two ends of controllable silicon link to each other with the resistance other end with voltage-stabiliser tube respectively.
3, a kind of power module that directly obtains low-voltage from civil power as claimed in claim 1 is characterized in that when full-wave rectification voltage stabilizing didoe is a pair of or some right.
4, a kind of power module that directly obtains low-voltage from civil power as claimed in claim 1 is characterized in that when halfwave rectifier, voltage stabilizing didoe is single or several.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00202414 CN2410816Y (en) | 2000-01-19 | 2000-01-19 | Power source module directly obtaining low voltage from electric supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00202414 CN2410816Y (en) | 2000-01-19 | 2000-01-19 | Power source module directly obtaining low voltage from electric supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2410816Y true CN2410816Y (en) | 2000-12-13 |
Family
ID=33571400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00202414 Expired - Fee Related CN2410816Y (en) | 2000-01-19 | 2000-01-19 | Power source module directly obtaining low voltage from electric supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2410816Y (en) |
-
2000
- 2000-01-19 CN CN 00202414 patent/CN2410816Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |