CN102195271A - Device for reducing starting current of electronic equipment - Google Patents
Device for reducing starting current of electronic equipment Download PDFInfo
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- CN102195271A CN102195271A CN2010101216166A CN201010121616A CN102195271A CN 102195271 A CN102195271 A CN 102195271A CN 2010101216166 A CN2010101216166 A CN 2010101216166A CN 201010121616 A CN201010121616 A CN 201010121616A CN 102195271 A CN102195271 A CN 102195271A
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Abstract
The invention discloses a device for reducing starting current of electronic equipment, which is connected with the electronic equipment. The electronic equipment comprises a power-supply module, a strong starting current module and a weak starting current module. The device comprises a delay starting switching module; and the delay starting switching module is respectively connected with the power-supply module and the weak starting current module, thus the weak starting current module is later than the strong starting current module. In the device, a delay switch is utilized to delay the starting of a strong starting current component, thus the strong starting current component and a weak starting current component are started respectively, thereby reducing the instant starting current of the electronic equipment, increasing the convenience of using the electronic equipment, and reducing the cost of the electronic equipment.
Description
Technical field
The present invention relates to electronic equipment and start the field, specially refer to a kind of device that is used to reduce the electronic equipment starting current.
Background technology
In the existing electronic equipment to the application of motor type element more and more widely, wherein, the starting current of motor is greatly improved relatively before, but for the electronic equipment that comprises a plurality of functional modules, starting current still is the key factor that the restriction electronic equipment starts.
For example: hard disk is a kind of electronic equipment part that uses motor as motor, and the starting current of its moment often reaches hundreds of, thousands of milliamperes (mA), even higher.So can give use hard disk bring very big problem as the startup of the electronic equipment of storage medium, especially more obvious in the electronic equipment of external movable storage device and hand-held electronic equipment.At present can only be by increasing external power supply or strengthening battery capacity and solve, use is inconvenient but this kind method not only makes electronic equipment, has also improved the cost of electronic equipment, and can not fundamentally solve the excessive problem of immediate current.
Summary of the invention
One of purpose of the present invention has reduced the transient current that electronic equipment starts for a kind of device that is used to reduce the electronic equipment starting current is provided.
The present invention proposes a kind of device that is used to reduce the electronic equipment starting current, is connected with electronic equipment; Described electronic equipment is provided with supply module, great start-up current module and non-great start-up current module; Described device comprises:
The delay start switch module is connected with supply module and non-great start-up current module respectively, makes non-great start-up current module postpone to start in the great start-up current module.
Preferably, described delay start switch module comprises:
Switch element is used for the break-make of control circuit;
Delayed start unit is connected with supply module and switch element respectively, when supply module begins to power, postpones the switch element turning circuit.
Preferably, described switch element comprises:
Metal-oxide-semiconductor Q1, resistance R 2 and triode Q2; After described metal-oxide-semiconductor Q1 and resistance R 2 are in parallel, connect with triode Q2 again.
Preferably, described delayed start unit comprises:
The RC circuit.
Preferably, described RC circuit comprises:
Preferably, described device also comprises:
Diode D1 and connects with capacitor C 1 after described resistance R 1 parallel connection again, is used for discharge.
Preferably, the described great start-up current module motor module that is hard disk.
Preferably, described non-great start-up current module be hard disk MCU and peripheral circuit.
The present invention is used to reduce the device of electronic equipment starting current, start non-great start-up current parts by postponing switching delay, great start-up current parts and non-great start-up current parts are separated startup, reduce the instantaneous starting electric current of electronic equipment, promote the convenience that electronic equipment uses, and the cost that reduces electronic equipment.
Description of drawings
Fig. 1 is the structural representation that is used to reduce the device of electronic equipment starting current in one embodiment of the invention;
Fig. 2 is the structural representation of electronic equipment in one embodiment of the invention;
Fig. 3 is the structural representation of delay start switch module in another embodiment of the present invention;
Fig. 4 is the electrical block diagram of delay start switch module in another embodiment of the present invention;
Fig. 5 is the current waveform schematic diagram that motor module starts in another embodiment of the present invention.
The realization of the object of the invention, functional characteristics and advantage will be in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
The present invention is provided with the delay switch by in needing the electronic equipment of great start-up current (such as the electronic equipment with motor type element); When electronic equipment starts, at first start and need great start-up current parts (such as the motor type element), and start non-great start-up current parts by postponing switching delay, great start-up current parts and non-great start-up current parts are separated startup, reduce the instantaneous starting electric current of electronic equipment, promote the convenience that electronic equipment uses, and the cost that reduces electronic equipment.
With reference to Fig. 1, a kind of device 20 that is used to reduce the electronic equipment starting current of one embodiment of the invention is proposed, be connected with electronic equipment 10; Above-mentioned electronic equipment 10 is provided with supply module 11, great start-up current module 12 and non-great start-up current module 13 (with reference to Fig. 2); Said apparatus 20 comprises:
Delay start switch module 21 is connected with supply module 11 and non-great start-up current module 13 respectively, makes non-great start-up current module 13 postpone to start in great start-up current module 12.
Above-mentioned electronic equipment 10 can be the electronic equipment 10 that needs transient high-current when starting, such as hard disk etc.Above-mentioned great start-up current module 12 can be when starting, need transient high-current and when operation the less electronic component of electric current, such as the motor type element of hard disk etc.Non-great start-up current module 13 can be the peripheral circuit except that the motor type element, other electronic components etc. in MCU (Micro Control Unit, micro-control unit) and the hard disk.
The device 20 that is used to reduce the electronic equipment starting current of present embodiment, by be set the start-up time that delay start switch module 21 postpones non-great start-up current module 13, transient current when reducing electronic equipment 10 startups, ensure the startup of great start-up current module 12, convenient and practical, reduced the cost of electronic equipment 10.
With reference to Fig. 3, a kind of device 20 that is used to reduce the electronic equipment starting current of another embodiment of the present invention is proposed.Above-mentioned delay start switch module 21 comprises switch element 211 and delayed start unit 212; This switch element 211 is used for the break-make of control circuit; This delayed start unit 212 is connected with supply module 11 and switch element 211 respectively, when supply module 11 begins to power, postpones switch element 211 turning circuits.The time that postpones can decide according to concrete needs, realizes by control lag start unit 212.
With reference to Fig. 4, above-mentioned switch element 211 comprises metal-oxide-semiconductor Q1, resistance R 2 and triode Q2; After above-mentioned metal-oxide-semiconductor Q1 and resistance R 2 are in parallel, connect with triode Q2 again.
Above-mentioned delayed start unit 212 comprises the RC circuit.This RC circuit comprises resistance R 1 and the capacitor C 1 of connecting with it.
The above-mentioned device 20 that is used to reduce the electronic equipment starting current also comprises diode D1, and connects with capacitor C 1 after above-mentioned resistance R 1 parallel connection again, is used for discharge.
Below be that great start-up current module 12 is an example with the motor module of the portable hard drive of circumscribed, the present embodiment technical scheme is elaborated.Electronic equipment 10 can be portable hard drive etc.; Non-great start-up current module 13 can be the element of other except that motor module in the portable hard drive, such as MCU and peripheral circuit etc.
Behind electronic equipment 10 electrifying startups, start for motor module and the power supply of other elements by supply module 11.Between supply module 11 and other elements, be provided with delay start switch module 21.With reference to Fig. 5, the current waveform figure that it starts for motor module, owing to motor module is starting, the big electric current that probably needs 1 second (S) starts and finish after-current reduction and stable 1 second; Therefore only need by delay start switch module 21 1 second of other element delay starts can be avoided starting simultaneously the immediate current problems of too of bringing.
When electronic equipment 10 startups, the incoming end of delay start switch module 21 (VCC_IN) energising at first gives capacitor C 1 charging (delayed start unit 212) by resistance R 1; This moment, the base stage of triode Q2 was a low-voltage, and then triode Q2 is a cut-off state; And the base stage of metal-oxide-semiconductor Q1 is a high voltage, and then metal-oxide-semiconductor Q1 is a cut-off state; Output (VCC_OUT) output voltage is 0, and then delay start switch module 21 is an off-state, other element no powers of electronic equipment 10, the startup and motor module can be switched on.When being charged to certain value, capacitor C 1 makes triode Q2 conducting (base voltage of Q2 reaches certain value), then the base stage of metal-oxide-semiconductor Q1 becomes low-voltage, also conducting of metal-oxide-semiconductor Q1, output output voltage then, other element energisings of electronic equipment 10 start, and output end voltage approximates output end voltage greatly.So, can be when electronic equipment 10 start, first actuating motor module (great start-up current) is restarted other elements, reaches to reduce the instantaneous excessive purpose of starting current.The ductile time of above-mentioned delay start switch module 21 is the charging interval of capacitor C 1, can be regulated by resistance R 1 and capacitor C 1.The effect of diode D1 is that capacitor C 1 is deposited electricity when avoiding powering in the short time again, and shortens the problem that the charging interval can not reach delay in 1 discharge of input terminal voltage disappearance post acceleration capacitor C.
The above only is the preferred embodiments of the present invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (8)
1. a device that is used to reduce the electronic equipment starting current is connected with electronic equipment; Described electronic equipment is provided with supply module, great start-up current module and non-great start-up current module; It is characterized in that described device comprises:
The delay start switch module is connected with supply module and non-great start-up current module respectively, makes non-great start-up current module postpone to start in the great start-up current module.
2. the device that is used to reduce the electronic equipment starting current according to claim 1 is characterized in that, described delay start switch module comprises:
Switch element is used for the break-make of control circuit;
Delayed start unit is connected with supply module and switch element respectively, when supply module begins to power, postpones the switch element turning circuit.
3. the device that is used to reduce the electronic equipment starting current according to claim 2 is characterized in that, described switch element comprises:
Metal-oxide-semiconductor Q1, resistance R 2 and triode Q2; After described metal-oxide-semiconductor Q1 and resistance R 2 are in parallel, connect with triode Q2 again.
4. according to claim 2 or the 3 described devices that are used to reduce the electronic equipment starting current, it is characterized in that described delayed start unit comprises:
The RC circuit.
5. the device that is used to reduce the electronic equipment starting current according to claim 4 is characterized in that, described RC circuit comprises:
Resistance R 1 and the capacitor C 1 of connecting with it.
6. the device that is used to reduce the electronic equipment starting current according to claim 5 is characterized in that, described device also comprises:
Diode D1 and connects with capacitor C 1 after described resistance R 1 parallel connection again, is used for discharge.
7. according to any described device that is used to reduce the electronic equipment starting current in the claim 1 to 3, it is characterized in that described great start-up current module is the motor module of hard disk.
8. according to any described device that is used to reduce the electronic equipment starting current in the claim 1 to 3, it is characterized in that MCU and peripheral circuit that described non-great start-up current module is a hard disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010121616.6A CN102195271B (en) | 2010-03-10 | 2010-03-10 | For reducing the device of starting current of electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010121616.6A CN102195271B (en) | 2010-03-10 | 2010-03-10 | For reducing the device of starting current of electronic equipment |
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| Publication Number | Publication Date |
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| CN102195271A true CN102195271A (en) | 2011-09-21 |
| CN102195271B CN102195271B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010121616.6A Active CN102195271B (en) | 2010-03-10 | 2010-03-10 | For reducing the device of starting current of electronic equipment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928958A (en) * | 2014-04-08 | 2014-07-16 | 深圳桑达国际电源科技有限公司 | Lithium battery charging or discharging management circuit and lithium battery management system |
| CN104682688A (en) * | 2015-03-09 | 2015-06-03 | 青岛歌尔声学科技有限公司 | Method for improving power supply stability during starting up and power circuit |
| CN107078640A (en) * | 2016-01-27 | 2017-08-18 | 深圳市大疆创新科技有限公司 | Power control circuit, electron speed regulator, unmanned vehicle and control method |
| CN114779858A (en) * | 2022-06-13 | 2022-07-22 | 深圳市帝迈生物技术有限公司 | Method, device, equipment and storage medium for starting sample analysis device |
Citations (4)
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| DE19610927A1 (en) * | 1996-03-20 | 1997-09-25 | Bosch Gmbh Robert | Control of power distribution to vehicle on-board electrical loads after start=up |
| CN201185390Y (en) * | 2008-04-22 | 2009-01-21 | 四川长虹电器股份有限公司 | Apparatus for reducing power supply output voltage dash current |
| CN101458901A (en) * | 2007-12-12 | 2009-06-17 | 群康科技(深圳)有限公司 | Power supply circuit for LCD |
| CN101640412A (en) * | 2009-09-02 | 2010-02-03 | 中兴通讯股份有限公司 | Soft-starting circuit of power supply |
-
2010
- 2010-03-10 CN CN201010121616.6A patent/CN102195271B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19610927A1 (en) * | 1996-03-20 | 1997-09-25 | Bosch Gmbh Robert | Control of power distribution to vehicle on-board electrical loads after start=up |
| CN101458901A (en) * | 2007-12-12 | 2009-06-17 | 群康科技(深圳)有限公司 | Power supply circuit for LCD |
| CN201185390Y (en) * | 2008-04-22 | 2009-01-21 | 四川长虹电器股份有限公司 | Apparatus for reducing power supply output voltage dash current |
| CN101640412A (en) * | 2009-09-02 | 2010-02-03 | 中兴通讯股份有限公司 | Soft-starting circuit of power supply |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928958A (en) * | 2014-04-08 | 2014-07-16 | 深圳桑达国际电源科技有限公司 | Lithium battery charging or discharging management circuit and lithium battery management system |
| CN103928958B (en) * | 2014-04-08 | 2016-02-03 | 深圳桑达国际电源科技有限公司 | A kind of charging and discharging lithium battery management circuit and lithium battery management system |
| CN104682688A (en) * | 2015-03-09 | 2015-06-03 | 青岛歌尔声学科技有限公司 | Method for improving power supply stability during starting up and power circuit |
| CN107078640A (en) * | 2016-01-27 | 2017-08-18 | 深圳市大疆创新科技有限公司 | Power control circuit, electron speed regulator, unmanned vehicle and control method |
| CN107078640B (en) * | 2016-01-27 | 2018-12-07 | 深圳市大疆创新科技有限公司 | Power control circuit, electron speed regulator, unmanned vehicle and control method |
| CN114779858A (en) * | 2022-06-13 | 2022-07-22 | 深圳市帝迈生物技术有限公司 | Method, device, equipment and storage medium for starting sample analysis device |
| CN114779858B (en) * | 2022-06-13 | 2022-10-28 | 深圳市帝迈生物技术有限公司 | Method, device, equipment and storage medium for starting sample analysis device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102195271B (en) | 2016-01-20 |
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