CN107947145B - A kind of anti-battery reversal connection circuit of charged pool power module - Google Patents
A kind of anti-battery reversal connection circuit of charged pool power module Download PDFInfo
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- CN107947145B CN107947145B CN201711326339.0A CN201711326339A CN107947145B CN 107947145 B CN107947145 B CN 107947145B CN 201711326339 A CN201711326339 A CN 201711326339A CN 107947145 B CN107947145 B CN 107947145B
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- current node
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- mos pipe
- battery
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- 239000003990 capacitor Substances 0.000 claims description 24
- 230000005611 electricity Effects 0.000 claims description 10
- 239000004065 semiconductor Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H11/00—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
- H02H11/002—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result in case of inverted polarity or connection; with switching for obtaining correct connection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/045—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage adapted to a particular application and not provided for elsewhere
Abstract
The present invention relates to power supply technical fields; a kind of anti-battery reversal connection circuit of charged pool power module is provided; including the diode D124, the relay K103 that are serially connected on positive busbar DC+ and the signal drive circuit being made of power MOS pipe Q306 and power MOS pipe Q307; when battery reversal connection; relay K103 is not attracted; power MOS pipe Q306 and power MOS pipe Q307 are not turned on; the backward voltage that battery generates loads on diode D124; to protect the component on circuit, Improving The Quality of Products.
Description
Technical field
The invention belongs to a kind of anti-battery of power supply technical field more particularly to charged pool power module reversal connection electricity
Road.
Background technique
In order to power in system cut-off to disk array or entire disk array, after many storage power configurations have now
Standby battery can save relevant information in computer room power-off, and this battery is usually to be embedded in power source internal, by golden finger or
Terminal is connected with power supply, can have detachable handle, and battery is facilitated to install or replace.
Wherein, the output of backup battery is positive minus two terminals, for convenience of installing and dismantling battery, when structure designs
Generally by the cell shapes after encapsulation and the space of battery is installed all it is made into symmetrically, once so backup battery is being just
Cathode is reversed to be likely to result in burning for power supply media board.
Summary of the invention
The purpose of the present invention is to provide a kind of anti-batteries of charged pool power module to be reversely connected circuit, it is intended to solve existing skill
In art when the positive and negative anodes of backup battery are reversed, the problem of burning of power supply media board is caused.
The invention is realized in this way a kind of anti-battery of charged pool power module is reversely connected circuit, the anti-battery reversal connection
Circuit includes that relay a K103, the relay K103 is equipped with stationary contact 3, normally opened contact 5, normally-closed contact 4 and electromagnet
Input terminal 2 and output end 1, the normally opened contact 5 of the relay K103 connect with the positive busbar DC+ of backup battery, it is described after
Route between the normally opened contact 5 and positive busbar DC+ of electric appliance K103 is equipped with the first current node, and first current node is drawn
Diode 124 is connected on route out, the other end of the diode 124 is connected to the stationary contact 3 of the relay K103,
Route between the diode 124 and the stationary contact 3 of the relay K103 is equipped with the second current node, second electricity
Flow connection that node is drawn to resistance R373, the normally opened contact 5 of the relay K103 and first current node it
Between route be equipped with the 5th current node, the connection that the 5th current node is drawn to negative busbar D-；
The input terminal 2 of the electromagnet connects the drain electrode of power MOS pipe Q306, and the output end 1 of the electromagnet connects
The end VCC2；
The source electrode of the power MOS pipe Q306 is connect after being sequentially connected in series two diode D329 with the end VCC2, the power
The grid of metal-oxide-semiconductor Q306 is connected to the source electrode of power MOS pipe Q307, the drain electrode series resistor R374 of the power MOS pipe Q307
After be connected to the end VCC2, the end VCC2, the resistance R377 are connected to after the grid series resistor R377 of the power MOS pipe Q307
It is connect after concatenation bleeder circuit with the positive busbar DC+ of backup battery.
As an improvement scheme, between the diode 124 and second current node route be equipped with resistance
R128。
As an improvement scheme, route between the output end 1 of the electromagnet and the end VCC2 is equipped with electricity
Hinder R129；
Capacitor C143 is parallel on the resistance R129.
As an improvement scheme, the power MOS pipe Q306 drain electrode the input terminal 2 of the electromagnet between
Route is equipped with the 4th current node, and the route between two diode D329 is equipped with third current node, the third electricity
Connection that node is drawn is flowed to the 4th current node.
As an improvement scheme, the bleeder circuit include be serially connected between the resistance R377 and positive busbar DC+
Route on capacitor C347, resistance R378, capacitor D325 and resistance R373.
As an improvement scheme, route between the capacitor C347 and resistance C378 is equipped with the 6th electric current section
Point is successively arranged the 7th current node on the route between the 6th current node and the source electrode of the power MOS pipe Q306；
Route between the source electrode of the power MOS pipe Q307 and the grid of the power MOS pipe Q306 is equipped with the 8th
Current node；
It is connect after the route series resistor R385 that 7th current node is drawn with the 8th current node.
As an improvement scheme, the route between route and the negative busbar D- that the 5th current node is drawn
On be serially connected with resistance R148；
Route between the resistance R148 and the negative busbar D- is equipped with the 9th current node, the resistance R148 with
The tenth current node is equipped between 5th current node, between the 9th current node and the tenth current node
Capacitor C140 and capacitor C141 are in series in connection line.
As an improvement scheme, route between the capacitor C140 and capacitor C141 is equipped with the 11st electric current section
Point is connect after the route series diode D125 that the 11st current node is drawn with the negative busbar D-.
As an improvement scheme, the route between the output end 1 of the electromagnet and the resistance R129 is equipped with
12nd current node；
Route between the input terminal 2 of the electromagnet and the drain electrode of the power MOS pipe Q306 is equipped with the 13rd electricity
Flow node；
Series diode D114 on route between 12nd current node and the 13rd current node.
In embodiments of the present invention, the anti-battery reversal connection circuit of charged pool power module includes being serially connected on positive busbar DC+
Diode D124, relay K103 and the signal drive circuit that is made of power MOS pipe Q306 and power MOS pipe Q307,
When battery reversal connection, relay K103 is not attracted, and power MOS pipe Q306 and power MOS pipe Q307 are not turned on, and battery generates anti-
To voltage-drop loading on diode D124, to protect the component on circuit, Improving The Quality of Products.
Detailed description of the invention
Fig. 1 is the schematic diagram of the anti-battery reversal connection circuit of charged pool power module provided by the invention；
Wherein, the first current node of 1-, the second current node of 2-, 3- third current node, the 4th current node of 4-, 5-
Five current nodes, the 6th current node of 6-, the 7th current node of 7-, the 8th current node of 8-, the 9th current node of 9-, 10-
Ten current nodes, the 11st current node of 11-, the 12nd current node of 12-.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Fig. 1 shows the schematic diagram of the anti-battery reversal connection circuit of charged pool power module provided by the invention, wherein in figure
Only give part related to the embodiment of the present invention.
Anti- battery reversal connection circuit includes a relay K103, and the relay K103 is equipped with stationary contact 3, normally opened contact 5, often
The input terminal 2 and output end 1 of closed contact 4 and electromagnet, the normally opened contact 5 of the relay K103 and the positive pole of backup battery
DC+ connection is arranged, the route between the normally opened contact 5 and positive busbar DC+ of the relay K103 is equipped with the first current node, institute
It states and is connected with diode 124 on the route of the first current node extraction, the other end of the diode 124 is connected to the relay
The stationary contact 3 of device K103, the route between the diode 124 and the stationary contact 3 of the relay K103 are equipped with the second electricity
Flow node, the connection that second current node is drawn to resistance R373, the normally opened contact 5 of the relay K103 and institute
It states route between the first current node and is equipped with the 5th current node, the connection that the 5th current node is drawn is to negative
Busbar D-；
The input terminal 2 of the electromagnet connects the drain electrode of power MOS pipe Q306, and the output end 1 of the electromagnet connects
The end VCC2；
The source electrode of the power MOS pipe Q306 is connect after being sequentially connected in series two diode D329 with the end VCC2, the power
The grid of metal-oxide-semiconductor Q306 is connected to the source electrode of power MOS pipe Q307, the drain electrode series resistor R374 of the power MOS pipe Q307
After be connected to the end VCC2, the end VCC2, the resistance R377 are connected to after the grid series resistor R377 of the power MOS pipe Q307
It is connect after concatenation bleeder circuit with the positive busbar DC+ of backup battery.
Wherein, as shown in connection with fig. 1, route is equipped with resistance between the diode 124 and second current node
R128。
In embodiments of the present invention, the route between the output end 1 of electromagnet and the end VCC2 is equipped with resistance R129；
Capacitor C143 is parallel on resistance R129.
In this embodiment, the route between the drain electrode and the input terminal 2 of the electromagnet of power MOS pipe Q306 is equipped with
4th current node, the route between two diode D329 are equipped with third current node, and the third current node is drawn
Connection to the 4th current node.
In embodiments of the present invention, the bleeder circuit includes being serially connected between the resistance R377 and positive busbar DC+
Capacitor C347, resistance R378, capacitor D325 and resistance R373 on route.
In this embodiment, the route between the capacitor C347 and resistance C378 is equipped with the 6th current node, described
The 7th current node is successively arranged on route between 6th current node and the source electrode of the power MOS pipe Q306；
Route between the source electrode of power MOS pipe Q307 and the grid of the power MOS pipe Q306 is equipped with the 8th electric current
Node；
It is connect after the route series resistor R385 that 7th current node is drawn with the 8th current node.
As shown in connection with fig. 1, electricity is serially connected on the route between route and the negative busbar D- that the 5th current node is drawn
Hinder R148；
Route between resistance R148 and the negative busbar D- is equipped with the 9th current node, the resistance R148 with it is described
The tenth current node, the connection between the 9th current node and the tenth current node are equipped between 5th current node
Capacitor C140 and capacitor C141 are in series on route.
In embodiments of the present invention, the route between the capacitor C140 and capacitor C141 is equipped with the 11st electric current section
Point is connect after the route series diode D125 that the 11st current node is drawn with the negative busbar D-.
In embodiments of the present invention, the route between the output end 1 of the electromagnet and the resistance R129 is equipped with the
12 current nodes；
Route between the input terminal 2 of the electromagnet and the drain electrode of the power MOS pipe Q306 is equipped with the 13rd electricity
Flow node；
Series diode D114 on route between 12nd current node and the 13rd current node.
In order to make it easy to understand, providing the anti-battery reversal connection circuit of charged pool power module provided by the invention in conjunction with Fig. 1
Working principle:
The end VCC2 be 15V supply voltage, HOTPLUG signal be control relay coil signal, power MOS pipe Q306 with
Power MOS pipe Q307 forms two-stage amplifying circuit, to drive HOTPLUG signal；
When power MOS pipe Q307 be connected, power MOS pipe Q306 saturation conduction, HOTPLUG signal be low level when, relay
Device K103 is attracted.Conversely, then K103 is disconnected for power MOS pipe Q306 cut-off when power MOS pipe Q307 ends；
The key whether control relay is attracted is exactly to control the base potential of power MOS pipe Q307.Power MOS pipe Q307
Base stage by diode D325 and resistance R373 be connected to output positive busbar DC+；
Under normal circumstances, the current potential of positive busbar DC+ is higher than negative busbar DC-, and diode D325 bears blocking voltage, positive pole
The current potential of row DC+ does not change the grid potential of power MOS pipe Q307.If battery is reversed, the current potential of the current potential ratio DC- of DC+ is low, then
The grid of power MOS pipe Q307 is determined by the current potential of R373, R377 and R378 bleeder circuit formed and DC+, VCC2, DC-
Current potential.When the negative potential of DC+ is sufficiently low, power MOS pipe Q307 cut-off, then power MOS pipe Q306 ends, and relay K103 is not
It is attracted, to realize the purpose of protection output capacitance.
In embodiments of the present invention, the positive and negative of voltage is judged from output port collection voltages, if on the occasion of then normal work
Make, if voltage is negative value, is switched off output relay or power MOS.
In embodiments of the present invention, the anti-battery reversal connection circuit of charged pool power module includes being serially connected on positive busbar DC+
Diode D124, relay K103 and the signal drive circuit that is made of power MOS pipe Q306 and power MOS pipe Q307,
When battery reversal connection, relay K103 is not attracted, and power MOS pipe Q306 and power MOS pipe Q307 are not turned on, and battery generates anti-
To voltage-drop loading on diode D124, to protect the component on circuit, Improving The Quality of Products.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (9)
1. a kind of anti-battery of charged pool power module is reversely connected circuit, which is characterized in that the anti-battery reversal connection circuit includes one
Relay K103, the relay K103 are equipped with 2 and of input terminal of stationary contact 3, normally opened contact 5, normally-closed contact 4 and electromagnet
Output end 1, the normally opened contact 5 of the relay K103 are connect with the positive busbar DC+ of backup battery, and the relay K103's is normal
It opens the route between contact 5 and positive busbar DC+ and is equipped with the first current node, connect on the route that first current node is drawn
It is connected to diode 124, the other end of the diode 124 is connected to the stationary contact 3 of the relay K103, the diode
Route between 124 and the stationary contact 3 of the relay K103 is equipped with the second current node, and second current node is drawn
Connection to resistance R373, on the route between the normally opened contact 5 of the relay K103 and first current node
Equipped with the 5th current node, connection that the 5th current node is drawn to negative busbar D-；
The input terminal 2 of the electromagnet connects the drain electrode of power MOS pipe Q306, and the output end 1 of the electromagnet connects the end VCC2；
The source electrode of the power MOS pipe Q306 is connect after being sequentially connected in series two diode D329 with the end VCC2, the power MOS pipe
The grid of Q306 is connected to the source electrode of power MOS pipe Q307, connects after the drain electrode series resistor R374 of the power MOS pipe Q307
To the end VCC2, the end VCC2, the resistance R377 concatenation point are connected to after the grid series resistor R377 of the power MOS pipe Q307
It is connect after volt circuit with the positive busbar DC+ of backup battery.
2. the anti-battery of charged pool power module according to claim 1 is reversely connected circuit, which is characterized in that the diode
Route is equipped with resistance R128 between 124 and second current node.
3. the anti-battery of charged pool power module according to claim 1 is reversely connected circuit, which is characterized in that the electromagnet
Output end 1 and the end VCC2 between route be equipped with resistance R129；
Capacitor C143 is parallel on the resistance R129.
4. the anti-battery of charged pool power module according to claim 1 is reversely connected circuit, which is characterized in that the power
Route between the drain electrode of metal-oxide-semiconductor Q306 and the input terminal 2 of the electromagnet is equipped with the 4th current node, two diodes
Route between D329 is equipped with third current node, the connection that the third current node is drawn to the 4th electric current
Node.
5. the anti-battery of charged pool power module according to claim 1 is reversely connected circuit, which is characterized in that the partial pressure electricity
Road include capacitor C347 on the route being serially connected between the resistance R377 and positive busbar DC+, resistance R378, capacitor D325 and
Resistance R373.
6. the anti-battery of charged pool power module according to claim 5 is reversely connected circuit, which is characterized in that the capacitor
Route between C347 and resistance C378 is equipped with the 6th current node, the 6th current node and the power MOS pipe
The 7th current node is successively arranged on route between the source electrode of Q306；
Route between the source electrode of the power MOS pipe Q307 and the grid of the power MOS pipe Q306 is equipped with the 8th electric current
Node；
It is connect after the route series resistor R385 that 7th current node is drawn with the 8th current node.
7. the anti-battery of charged pool power module according to claim 1 is reversely connected circuit, which is characterized in that the 5th electricity
Resistance R148 is serially connected on the route between route and the negative busbar D- that stream node is drawn；
Route between the resistance R148 and the negative busbar D- is equipped with the 9th current node, the resistance R148 with it is described
The tenth current node, the connection between the 9th current node and the tenth current node are equipped between 5th current node
Capacitor C140 and capacitor C141 are in series on route.
8. the anti-battery of charged pool power module according to claim 7 is reversely connected circuit, which is characterized in that the capacitor
Route between C140 and capacitor C141 is equipped with the 11st current node, the route concatenation that the 11st current node is drawn
It is connect after diode D125 with the negative busbar D-.
9. the anti-battery of charged pool power module according to claim 1 is reversely connected circuit, which is characterized in that the electromagnet
Output end 1 and the resistance R129 between route be equipped with the 12nd current node；
Route between the input terminal 2 of the electromagnet and the drain electrode of the power MOS pipe Q306 is equipped with the 13rd electric current section
Point；
Series diode D114 on route between 12nd current node and the 13rd current node.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711326339.0A CN107947145B (en) | 2017-12-13 | 2017-12-13 | A kind of anti-battery reversal connection circuit of charged pool power module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711326339.0A CN107947145B (en) | 2017-12-13 | 2017-12-13 | A kind of anti-battery reversal connection circuit of charged pool power module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107947145A CN107947145A (en) | 2018-04-20 |
| CN107947145B true CN107947145B (en) | 2019-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711326339.0A Active CN107947145B (en) | 2017-12-13 | 2017-12-13 | A kind of anti-battery reversal connection circuit of charged pool power module |
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| JP3368124B2 (en) * | 1995-10-26 | 2003-01-20 | キヤノン株式会社 | Overcharge prevention circuit |
| CN202586793U (en) * | 2012-03-05 | 2012-12-05 | 无锡盛莱得新能源科技有限公司 | Photovoltaic grid-connected inverter with input reverse-connection protection |
| CN103199503A (en) * | 2013-03-29 | 2013-07-10 | 奇瑞汽车股份有限公司 | Protective circuit of vehicle-mounted charger |
| CN204349564U (en) * | 2014-11-12 | 2015-05-20 | 宁波中博电器有限公司 | Solar recharging all-in-one |
| CN105978123A (en) * | 2016-06-06 | 2016-09-28 | 东南大学 | Dynamic adjustment system for phase shift full bridge type vehicle-mounted charger dead zone time |
| CN206041474U (en) * | 2016-09-22 | 2017-03-22 | 东莞市港奇电子有限公司 | Power supply protection circuit of battery |
-
2017
- 2017-12-13 CN CN201711326339.0A patent/CN107947145B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3368124B2 (en) * | 1995-10-26 | 2003-01-20 | キヤノン株式会社 | Overcharge prevention circuit |
| CN202586793U (en) * | 2012-03-05 | 2012-12-05 | 无锡盛莱得新能源科技有限公司 | Photovoltaic grid-connected inverter with input reverse-connection protection |
| CN103199503A (en) * | 2013-03-29 | 2013-07-10 | 奇瑞汽车股份有限公司 | Protective circuit of vehicle-mounted charger |
| CN204349564U (en) * | 2014-11-12 | 2015-05-20 | 宁波中博电器有限公司 | Solar recharging all-in-one |
| CN105978123A (en) * | 2016-06-06 | 2016-09-28 | 东南大学 | Dynamic adjustment system for phase shift full bridge type vehicle-mounted charger dead zone time |
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Non-Patent Citations (1)
| Title |
|---|
| 防止MOSFET驱动器与电池反接;红林;《电子设计应用》;20030731(第07期);第94页 |
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| CN107947145A (en) | 2018-04-20 |
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