CN103647339A - Power supply device with multiple power sources in parallel connection - Google Patents
Power supply device with multiple power sources in parallel connection Download PDFInfo
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- CN103647339A CN103647339A CN201310707922.1A CN201310707922A CN103647339A CN 103647339 A CN103647339 A CN 103647339A CN 201310707922 A CN201310707922 A CN 201310707922A CN 103647339 A CN103647339 A CN 103647339A
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Abstract
The invention discloses a power supply device with multiple power sources in parallel connection. The power supply device comprises a plurality of power modules, wherein each of the power modules is connected with load through a power circuit conversion module. Each of the power circuit conversion modules comprises a parallel connection anti-reversing unit which comprises a connection control subunit and an N type metal oxide semiconductor (MOS) tube 2. The power circuit conversion modules can simulate traditional diodes in parallel connection, voltage loss of the power circuit conversion modules is only 0.0085-0.0125V and is smaller than voltage drop of the traditional diodes in parallel connection, and the voltage drop of the traditional diodes in parallel connection is 0.7V. Furthermore, an over voltage protection unit and a slow start unit are additionally arranged, therefore, the problems of hot plugging and surge are solved, and impact on the load of large current in the instant of starting is prevented. Automatic locking can be performed when one of voltages is overvoltage, and the impact on the load of high voltage is prevented. A slow start function can control a start timing sequence within a certain time range.
Description
Technical field
The present invention relates to power supply supply field, more specifically, relate to a kind of many power supplys parallel operation device.
Background technology
Existing much equipment and system all need to possess the construction for electricity of backup battery, multi-power supply.And in existing system applies, system power supply does not generally all have function in parallel, so in the time need to using the construction for electricity of multi-power supply, existing traditional technology is that the mode of exporting by diodes in parallel realizes, as Fig. 1.
Although adopt in this way simple and can realize the parallel connection output of many power supplys, can the excessive pressure drop of loss on diode, be about 0.4 ~ 0.7V.
Summary of the invention
The present invention is at least one defect (deficiency) overcoming described in above-mentioned prior art, provides a kind of output voltage loss in parallel little many power supplys parallel operation device.
For solving the problems of the technologies described above, technical scheme of the present invention is as follows:
A kind of many power supplys parallel operation device, comprise several power modules, each power module connects load by a power circuit modular converter, and described power circuit modular converter comprises counnter attack filling in parallel unit, and control subelement and the N-type metal-oxide-semiconductor 2 that unit comprises connection filled with in described counnter attack in parallel.Adopt the control subelement of connection and the counnter attack in parallel of N-type metal-oxide-semiconductor 2 formations to fill with unit and can simulate the diode that tradition is connected in parallel, the voltage loss of this unit only has 0.0085 ~ 0.0125V, is far smaller than the pressure drop of tradition use in parallel diode 0.7V.
Compared with prior art, the beneficial effect of technical solution of the present invention is: adopt counnter attack in parallel to fill with unit and can simulate the diode that tradition is connected in parallel, the voltage loss of this unit only has 0.0085 ~ 0.0125V, is far smaller than the tradition pressure drop of using diode 0.7V in parallel.At electric supply installation of the present invention, also add the gentle start unit of overvoltage protective unit simultaneously, in order to solve hot plug, Anti-surging problem, prevented the impact of the large electric current of booting moment to load.Be automatically locked when an electric voltage over press therein, prevent the impact of high voltage to load; Soft start function can start sequential at certain hour scope control.
Accompanying drawing explanation
Fig. 1 is for adopting parallel diode to realize the structure diagram of power supply output in parallel.
Fig. 2 is the structural representation of power circuit modular converter in the present invention.
Fig. 3 is the circuit theory diagrams that in embodiment, unit is filled with in counnter attack in parallel.
Fig. 4 is the circuit theory diagrams of overvoltage protective unit in embodiment.
Fig. 5 is the circuit theory diagrams of slow start unit in embodiment.
Embodiment
Accompanying drawing, only for exemplary illustration, can not be interpreted as the restriction to this patent;
For better explanation the present embodiment, some parts of accompanying drawing have omission, zoom in or out, and do not represent the size of actual product;
To those skilled in the art, in accompanying drawing some known configurations and explanation thereof may to omit be understandable.
Below in conjunction with drawings and Examples, technical scheme of the present invention is described further.
Because the mode of existing employing parallel diode does not have over-voltage protection function, there is no Anti-surging function yet, there is not slow startup and the function of hot plug yet.Therefore in present embodiment, propose a kind of can solution of the above problems; as Fig. 2; a kind of many power supplys parallel operation device; comprise several power modules; each power module connects load by a power circuit modular converter,, described power circuit modular converter comprises the overvoltage protective unit connecting in turn, slow start unit and counnter attack in parallel filling unit; counnter attack in parallel is filled with unit and is comprised connection control subelement and N-type metal-oxide-semiconductor 2, as shown in Figure 3.
As Fig. 4, described overvoltage protective unit comprises resistance R 4, R8, R9, R11, R12, R14, capacitor C 10, EC1, voltage stabilizing didoe ZD2, triode Q 2, Q3, the diode D1 of two series aiding connections and two diode D2 in parallel in the same way; The Voltage-output of described power module is by one end of fuse F1 connecting resistance R4, two of another terminations of resistance R 4 are the positive pole of diode D2 in parallel in the same way, the negative pole of two diode D2 in parallel in the same way connects respectively the base stage of triode Q2, the collector electrode of triode Q3, also by one end of resistance R 12 connecting resistance R4, one end of resistance R 4 also connects the emitter of triode Q2 by resistance R 11, the base stage of the collector connecting transistor Q3 of triode Q2, the negative pole that also meets the diode D1 of two series aiding connections also passes through capacitor C 10 ground connection, the grounded emitter of triode Q3; One end of resistance R 4 also connects the negative pole of voltage stabilizing didoe ZD2, and the positive pole of voltage stabilizing didoe ZD2 is by one end of resistance R 8 difference connecting resistance R9, R14, the positive pole of the diode D1 of two series aiding connections of resistance R 9 another terminations, the other end ground connection of resistance R 14; The Voltage-output of power module is received the positive pole of electric capacity EC1, the minus earth of electric capacity EC1 by fuse F1; The positive pole of two diode D2 in parallel in the same way connects slow start unit.
As Fig. 5, described slow start unit comprises resistance R 1, R3, R7, R13, capacitor C 1, TC1, voltage stabilizing didoe ZD1, triode Q1 and MOS1 pipe, the Voltage-output of described power module is by one end of fuse F1 difference connecting resistance R3 and the negative pole of voltage stabilizing didoe ZD1, resistance R 3 other ends are connected with the positive pole of voltage stabilizing didoe ZD1, and connect the grid of metal-oxide-semiconductor 1, the source electrode of metal-oxide-semiconductor 1 connects the negative pole of voltage stabilizing didoe ZD1, and the drain electrode of metal-oxide-semiconductor 1 is by the capacitor C 1 being connected in series, the negative pole that resistance R 1 meets voltage stabilizing didoe ZD1; The grid of metal-oxide-semiconductor 1 connects the collector electrode of triode Q1 by resistance R 7, the grounded emitter of triode Q1, base stage and the emitter of resistance R 3 connecting triode Q1, the positive pole of electric capacity TC1 connects the base stage of triode Q1, negative pole connects the emitter of triode Q1, the drain electrode of metal-oxide-semiconductor 1 connects counnter attack in parallel and fills with unit, and wherein metal-oxide-semiconductor 1 is P channel-type.
When input output1 or output2 normally export, ZD2 is in cut-off state, and OVP protection circuit is not worked, overvoltage suddenly situation under; take output1 as example: ZD2 conducting; Q3 base voltage is drawn high, Q3 conducting, and Q2 base voltage is dragged down; Q2 conducting; CON1 is by locked in low level, and Q1 ends, and MOS1 G pole tension is drawn high; MOS1 cut-off, output1 is in OVP state.Q1 starts conducting when base stage is greater than 0.7V, TC1 charges when powering on, and Q1 base voltage is slowly climbed, and time-to-climb can be controlled by the capacitance of TC1, it is more of a specified duration time-to-climb that capacitance being larger, fast the time-to-climb that capacitance being less, thus the time of control Q1 conducting, and then the time of control MOS1 conducting, reach the function of having delayed, owing to delaying startup, in the time of can effectively preventing from starting shooting, the impact of surge current to load, realizes warm connection function simultaneously.
The corresponding same or analogous parts of same or analogous label;
In accompanying drawing, describe position relationship for only for exemplary illustration, can not be interpreted as the restriction to this patent;
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all execution modes.All any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in the protection range of the claims in the present invention.
Claims (5)
1. the device of power supply parallel operation more than a kind, comprise several power modules, each power module connects load by a power circuit modular converter, it is characterized in that, described power circuit modular converter comprises counnter attack filling in parallel unit, and described counnter attack in parallel is filled with unit and comprised connection control subelement and N-type metal-oxide-semiconductor 2.
2. many power supplys parallel operation device according to claim 1; it is characterized in that; described electric supply installation also comprises the overvoltage protective unit start unit that eases up, and described power module is connected with counnter attack filling in parallel unit by connecting in turn the gentle start unit of overvoltage protective unit.
3. many power supplys parallel operation device according to claim 2, it is characterized in that, described overvoltage protective unit comprises resistance R 4, R8, R9, R11, R12, R14, capacitor C 10, EC1, voltage stabilizing didoe ZD2, triode Q 2, Q3, the diode D1 of two series aiding connections and two diode D2 in parallel in the same way; The Voltage-output of described power module is by one end of fuse F1 connecting resistance R4, two of another terminations of resistance R 4 are the positive pole of diode D2 in parallel in the same way, the negative pole of two diode D2 in parallel in the same way connects respectively the base stage of triode Q2, the collector electrode of triode Q3, also by one end of resistance R 12 connecting resistance R4, one end of resistance R 4 also connects the emitter of triode Q2 by resistance R 11, the base stage of the collector connecting transistor Q3 of triode Q2, the negative pole that also meets the diode D1 of two series aiding connections also passes through capacitor C 10 ground connection, the grounded emitter of triode Q3; One end of resistance R 4 also connects the negative pole of voltage stabilizing didoe ZD2, and the positive pole of voltage stabilizing didoe ZD2 is by one end of resistance R 8 difference connecting resistance R9, R14, the positive pole of the diode D1 of two series aiding connections of resistance R 9 another terminations, the other end ground connection of resistance R 14; The Voltage-output of power module is received the positive pole of electric capacity EC1, the minus earth of electric capacity EC1 by fuse F1; The positive pole of two diode D2 in parallel in the same way connects slow start unit.
4. many power supplys parallel operation device according to claim 3, it is characterized in that, described slow start unit comprises resistance R 1, R3, R7, R13, capacitor C 1, TC1, voltage stabilizing didoe ZD1, triode Q1 and MOS1 pipe, the Voltage-output of described power module is by one end of fuse F1 difference connecting resistance R3 and the negative pole of voltage stabilizing didoe ZD1, resistance R 3 other ends are connected with the positive pole of voltage stabilizing didoe ZD1, and connect the grid of metal-oxide-semiconductor 1, the source electrode of metal-oxide-semiconductor 1 connects the negative pole of voltage stabilizing didoe ZD1, the drain electrode of metal-oxide-semiconductor 1 is by the capacitor C 1 being connected in series, resistance R 1 connects the negative pole of voltage stabilizing didoe ZD1, the grid of metal-oxide-semiconductor 1 connects the collector electrode of triode Q1 by resistance R 7, the grounded emitter of triode Q1, base stage and the emitter of resistance R 3 connecting triode Q1, the positive pole of electric capacity TC1 connects the base stage of triode Q1, negative pole connects the emitter of triode Q1, and the drain electrode of metal-oxide-semiconductor 1 connects counnter attack in parallel and fills with unit.
5. many power supplys parallel operation device according to claim 4, is characterized in that, described metal-oxide-semiconductor 1 is P channel-type.
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| CN201310707922.1A CN103647339B (en) | 2013-12-20 | 2013-12-20 | Many power sources in parallel electric supply installation |
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| CN201310707922.1A CN103647339B (en) | 2013-12-20 | 2013-12-20 | Many power sources in parallel electric supply installation |
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| CN103647339B CN103647339B (en) | 2015-10-28 |
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| CN105098965A (en) * | 2014-05-14 | 2015-11-25 | 广达电脑股份有限公司 | Servo system and power supply switching method thereof |
| CN105673541A (en) * | 2015-12-30 | 2016-06-15 | 广东威创视讯科技股份有限公司 | Electric fan control circuit |
| WO2017114136A1 (en) * | 2015-12-30 | 2017-07-06 | 深圳光启空间技术有限公司 | Power source interface device |
| WO2017113458A1 (en) * | 2015-12-31 | 2017-07-06 | 邦彦技术股份有限公司 | Dual input power supply system for mtca chassis |
| TWI594111B (en) * | 2016-01-28 | 2017-08-01 | 廣達電腦股份有限公司 | Electronic device |
| CN109842108A (en) * | 2019-02-25 | 2019-06-04 | 西安微电子技术研究所 | A kind of grid-connected counnter attack filling power distribution equipment of multichannel high-current supply |
| CN112088476A (en) * | 2018-04-17 | 2020-12-15 | 德州仪器公司 | USB TYPE-C/PD controller with integrated VBUS to CC short-circuit protection |
| CN116032105A (en) * | 2023-03-24 | 2023-04-28 | 深圳市南方硅谷半导体股份有限公司 | Power supply overvoltage protection IC |
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| CN112088476B (en) * | 2018-04-17 | 2024-04-05 | 德州仪器公司 | USB TYPE-C/PD controller with integrated VBUS to CC short circuit protection |
| CN109842108A (en) * | 2019-02-25 | 2019-06-04 | 西安微电子技术研究所 | A kind of grid-connected counnter attack filling power distribution equipment of multichannel high-current supply |
| CN116032105A (en) * | 2023-03-24 | 2023-04-28 | 深圳市南方硅谷半导体股份有限公司 | Power supply overvoltage protection IC |
| CN116032105B (en) * | 2023-03-24 | 2023-06-16 | 深圳市南方硅谷半导体股份有限公司 | Power supply overvoltage protection IC |
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| CN103647339B (en) | 2015-10-28 |
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