CN1295375A - High-frequency switching power supply with power module capable of being inserted and drawn while power-on - Google Patents
High-frequency switching power supply with power module capable of being inserted and drawn while power-on Download PDFInfo
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- CN1295375A CN1295375A CN 99121280 CN99121280A CN1295375A CN 1295375 A CN1295375 A CN 1295375A CN 99121280 CN99121280 CN 99121280 CN 99121280 A CN99121280 A CN 99121280A CN 1295375 A CN1295375 A CN 1295375A
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Abstract
The high-frequency switching voltage regulator is used to provide programmed telephone exchange and other equipoment with -48V power supply. The high-frequency power source module has no input and output switch and the strong and weak signal lines including AC input, DC output, remote measurement, remote control, remote regulation, current equalizing, etc. to outer interface are connected to a connector being inserted and drawn while power-on. The charged insertion and drawing of high-frequency power source module reduces the maintenance time and cost of power supply system and eliminates the hidden trouble of power supply system in safety.
Description
The present invention relates to high frequency switch power, the hot-swappable high frequency switch power of saying so in more detail and forming by Alternating Current Unit (8), Direct Current Distribution Unit (18), power supply supervision unit (9), high-frequency switching power supply module (10), lightning arrester (7) etc.
The high frequency switch power that present SPC telephone exchange is used, have and adopt the HF switch converter technique to use intelligent high-frequency switching mode power supply with microcomputer-controlled communication, it is made up of several high-frequency switching power supply modules, monitoring unit and alternating current-direct current power supply unit.Alternating Current Unit also outwards provides to exchange output except that to module provides AC power; Direct Current Distribution Unit outwards provides two-way storage battery and multi-channel DC load output.Characteristics such as it has that power density is big, good stability and reliability height, weak point is that the module replacing can not realize warm swap, the dismounting of malfunctioning module and the installation of new module are carried out under the charged state of being everlasting, occur phenomenons such as sparking, short circuit sometimes, had a strong impact on the power supply safety of power-supply system and maintainer's personal safety.In addition, switch power module no-load running for a long time, module happens occasionally because of the unloaded incident of damaging.
Present inventors are through studying for a long period of time, and interchange input (3), direct current output (1), four distant interfaces, current equalizer (2) that discovery will have high-frequency switching power supply module (10) now all pass through high-performance hot-pluggable connector (5) and connect; Flow equalizing circuit in the module (10) is improved, made the dynamic requirements of its adaptive zone hot-line insertion and extraction control; Module output is by diode (14) back and can solve above-mentioned deficiency to dc bus (15), has realized the warm swap operation of high-frequency switching power supply module (10), has so far finished the present invention.
The purpose of this invention is to provide the high frequency switch power that a kind of power module (10) can warm swap, more stable to guarantee the power-supply system operation, safeguards safer, convenient, phenomenons such as the sparking of appearance, short circuit when solving power module and changing.
Second purpose of the present invention provides a kind of power module that can no-load running.
In order to achieve the above object, the present invention is achieved in that to SPC telephone exchange and provides-high frequency switch power of 48V power supply, it is characterized in that not having the input and output switch on the high-frequency switching power supply module (10), the interchange input (3) of external interface, direct current output (1), remote measurement, remote signalling, remote control, remote regulating and current-sharing strong and weak electricity holding wires such as (2) all connects by warm swap connector (5), each module output is also arrived on system's dc bus (15) by diode (14) back on the rack, realize the warm swap of high-frequency switching power supply module (10), and do not influence the normal operation of power supply and other module.
In order to realize second purpose of the present invention, power module of the present invention (10) hot-swappable high frequency switch power is characterized in that the module main circuit topology adopts the double tube positive exciting translation circuit.
In order to realize other purposes of the present invention, the current-mode control mode is adopted in high-frequency switching power supply module control of the present invention.
The present invention in detail described for illustrating better below by accompanying drawing.
Warm swap connector on accompanying drawing 1 power module;
Accompanying drawing 2 power module front and back panel structure charts;
Accompanying drawing 3 power supply cabinet outside drawings;
Accompanying drawing 4 double tube positive exciting translation circuit figure;
Accompanying drawing 5 modules are exported by diode to the bus interface line chart;
Accompanying drawing 6 warm swap current-sharing bus Dynamic Recognition and control circuit figure;
Accompanying drawing 7 power supply cabinet structure charts.Figure number wherein:
(1): module direct current output interface; (2): four distant, equal stream interfaces
(3): module exchanges input interface; (4): the power module rear board
(5): the warm swap connector; (6): the power module front panel
(7): lightning arrester; (8): AC distribution
(9): Power Supply Monitoring; (10): power module
(11): diode; (12): transformer
(13): switching tube; (14): the module output diode
(15): the direct current output bus; (16): the current-sharing bus
(17): the output of Dynamic Recognition circuit; (18): DC distribution
Describe the present invention in detail below in conjunction with accompanying drawing:
Warm swap connector (5) on the power module (10) is the highly reliable connector of 37 pins that is manufactured and designed by U.S. ELCON connector specialized company.Wherein 1 to 9 pin (3) can be used for exchanging input, and 10 to 33 pins (2) are used for four distant and current equalizer interfaces, and 34 to 37 pins (1) are used for direct current output.
Power module (10) front and back panel (6) (4) structure chart as shown in Figure 2.Do not have the input and output switch on the module front and back panel (6) (4) as can be seen by accompanying drawing 2, this is the present invention's important symbol structurally.
The power supply cabinet appearance assumption diagram as shown in Figure 3.What accompanying drawing 3 provided is Single Cabinet structure (300A system), and the design maximum system is the 900A system, can be realized by many cabinet combination.
The double tube positive exciting translation circuit is compared with other translation circuit, and the conducting of two switching tubes (13) must be passed through transformer (12) winding, and switching tube (13) turn-offs the overvoltage that produces and obtains clamped by fly-wheel diode (11) by the input power supply.So the reliability extra-high-speed of this circuit matches with perfect control circuit of the present invention, has realized module (10) but no-load running.
The module of hot-swappable high frequency switch power of the present invention (10) output is by preventing that pouring in down a chimney diode (14) receives on the output bus (15).If should anti-not pour in down a chimney diode (14), when being inserted into rack, because the filter capacitor of module (10) output is bigger, the impulse current of moment is bigger, and is bigger to the influence of power supply and warm swap connector (5) in module (10).
The effect of warm swap current-sharing bus dynamic control circuit (accompanying drawing 6) is to be used for the warm swap process control module current-sharing output line of module (10) and the break-make of current-sharing bus (16).The current potential of current-sharing bus (16) changes because of the variation of the output current of module (10) in module (10) the warm swap process; particularly the dynamic adjustment of module (10) internal control circuit makes the potential jump of current-sharing bus (16); the sudden change of current-sharing bus potential can cause module (10) output overvoltage and make module (10) protection, causes the failure of module (10) warm swap.To this, the present invention has successfully developed the warm swap current-sharing bus dynamic control circuit shown in the accompanying drawing 6.
The current potential of (16) point is followed the potential change of current-sharing bus in the circuit, the variation that normal load variations current-sharing bus (16) goes up current potential is less, the current potential of warm swap current-sharing bus Dynamic Recognition control circuit output (17) is a low level, and it is constant that all current relay keeps adhesive; In module (10) warm swap process, the variation of current-sharing bus (16) current potential is bigger, warm swap current-sharing bus Dynamic Recognition control circuit output (17) point is high level, all current relay outages, current equalizer and system's current-sharing bus (16) of module (10) output disconnect, module (10) operation is not subjected to the influence of current-sharing bus (16) sudden change, when power up warm swap current-sharing just often bus Dynamic Recognition control circuit output (17) recovers low level, all current relay adhesives, power supply normally moves.This circuit is one of Key Circuit of this power supply realization warm swap.
The present invention does not use the input and output switch on power module (10), the interchange input (3) of external interface, direct current output (1), remote measurement, remote signalling, remote control, remote regulating, current-sharing signals such as (2) all pass through warm swap connector (5) and connect, reduced the preventive maintenance time of power supply, eliminated the hidden danger of power supply operation maintenance process, complicated power module is changed become very simple, user oneself is replaceable, for producer has saved considerable operation and maintenance cost, can in all high frequency switch power supply systems, use.
Claims (3)
1. the high frequency switch power of a warm swap, by Alternating Current Unit (8), Direct Current Distribution Unit (18), power supply supervision unit (9), high-frequency switching power supply module (10), lightning arrester (7) is formed, be used for providing-the 48V power supply to equipment such as stored-program control exchanges, it is characterized in that not having the input and output switch on the high-frequency switching power supply module (10), the interchange input (3) of external interface, direct current output (1), remote measurement, remote signalling, remote control, remote regulating and current-sharing strong and weak electricity holding wires such as (2) all connects by warm swap connector (5), each module (10) output realizes the warm swap of high-frequency switching power supply module (10) also arriving on the power supply dc bus (15) by diode (14) back on the rack.
2. hot-swappable high frequency switch power according to claim 1 is characterized in that high-frequency switching power supply module (10) adopts the double tube positive exciting translation circuit.
3. hot-swappable high frequency switch power according to claim 1 is characterized in that high-frequency switching power supply module adopts the current source PWM control mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99121280 CN1295375A (en) | 1999-11-04 | 1999-11-04 | High-frequency switching power supply with power module capable of being inserted and drawn while power-on |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99121280 CN1295375A (en) | 1999-11-04 | 1999-11-04 | High-frequency switching power supply with power module capable of being inserted and drawn while power-on |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1295375A true CN1295375A (en) | 2001-05-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99121280 Pending CN1295375A (en) | 1999-11-04 | 1999-11-04 | High-frequency switching power supply with power module capable of being inserted and drawn while power-on |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1295375A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102496969A (en) * | 2011-11-11 | 2012-06-13 | 江苏正佰电气有限公司 | Charging device for DC power cabinet |
| CN105301296A (en) * | 2015-11-27 | 2016-02-03 | 中国电力科学研究院 | Live plugging socket connector of low-voltage metering box |
| CN108780964A (en) * | 2016-03-03 | 2018-11-09 | 哈廷电子有限公司及两合公司 | Modular system for modularization umbilical connector |
-
1999
- 1999-11-04 CN CN 99121280 patent/CN1295375A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102496969A (en) * | 2011-11-11 | 2012-06-13 | 江苏正佰电气有限公司 | Charging device for DC power cabinet |
| CN105301296A (en) * | 2015-11-27 | 2016-02-03 | 中国电力科学研究院 | Live plugging socket connector of low-voltage metering box |
| CN105301296B (en) * | 2015-11-27 | 2023-07-18 | 中国电力科学研究院 | Live plug connector of low-voltage metering box |
| CN108780964A (en) * | 2016-03-03 | 2018-11-09 | 哈廷电子有限公司及两合公司 | Modular system for modularization umbilical connector |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |