CN1070430C - Automotive battery charging voltage control circuit - Google Patents
Automotive battery charging voltage control circuit Download PDFInfo
- Publication number
- CN1070430C CN1070430C CN97110549A CN97110549A CN1070430C CN 1070430 C CN1070430 C CN 1070430C CN 97110549 A CN97110549 A CN 97110549A CN 97110549 A CN97110549 A CN 97110549A CN 1070430 C CN1070430 C CN 1070430C
- Authority
- CN
- China
- Prior art keywords
- battery
- control
- voltage
- terminal
- control circuit
- Prior art date
- 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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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
- H02J7/1469—Regulation of the charging current or voltage otherwise than by variation of field
- H02J7/1492—Regulation of the charging current or voltage otherwise than by variation of field by means of controlling devices between the generator output and the battery
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Control Of Charge By Means Of Generators (AREA)
- Secondary Cells (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
In an automotive battery charging voltage control circuit which employs a thyristor to control the charging voltage by turning off the thyristor for a prescribed time period when an excessive voltage is detected at the battery terminal, a gate control circuit element is used so as to keep the thyristor turned off even when a negative voltage is produced at the battery terminal. Therefore, even when an inductive load such as a flasher relay is turned on and off, with the battery disconnected, or with the battery totally discharged, it is possible to maintain the gate current control in an initially designed manner. It is thus possible to carry out a favorable battery charging voltage control either with the battery connected or with the battery disconnected, and prevent any abnormal rise in the voltage at the battery terminal under all conditions.
Description
The present invention relates to a kind of automotive battery charging voltage control circuit.
Battery charging voltage control circuit is arranged between on-vehicle battery and the automobile-used ACG (AC electrical generator) in company with the combustion engine action usually, and various mobile unit is by battery and/or ACG power supply.Generally, even when battery has all been put electricity or opened a way for some reason, vehicle is worked on.
Circuit shown in Fig. 4 is the well-known motor bike conventional batteries charging voltage control circuit that the measure that prevents the battery open circuit is housed.In the circuit of Fig. 4, ACG1 is suitable for being driven by combustion engine (accompanying drawing is not shown), and the voltage output end of ACG1 is connected to the charging end CH of battery charging voltage control circuit 12.
The battery terminal BT that serves as the voltage output end of battery charging voltage control circuit 12 is connected to a flash light relay 3, a parking light SL, an ignition control circuit CDI and a battery 4 that provides with the form of the example of mobile unit.Flash light relay 3 is connected to left and right sides flash light LL and RL, and any one flash light that selected switch SW 1 is chosen all can intermittently be lighted.Parking light SL also can light selectively by closing a switch SW2.
Battery charging voltage control circuit 12 comprises a controllable silicon SCR that is connected between CH and the BT two-terminal.Node between the anode of charging terminal CH and controllable silicon SCR is by a resistance R 1, a diode D1 and transistor Q1 ground connection of connecting.Node between resistance R 1 and the diode D1 is controlled the utmost point and also is connected to silicon controlled negative electrode and battery terminal BT by a resistance R 2 by the control utmost point that a forward bonded assembly diode D2 is connected to controllable silicon SCR.
Node between the negative electrode of controllable silicon SCR and the battery terminal BT is by a forward bonded assembly diode D3, a resistance R 3 and cond C1 ground connection of connecting in this order.Node between diode D3 and the resistor R 3 is connected to the base stage of transistor Q1 by a Zener diode ZD2.
In having this battery charging voltage control circuit 12 of said structure, under battery 4 electrically-charged reasonable conditionss, battery is appeared at the positive half-wave component of voltage charging of terminal BT.When cell pressure becomes the threshold voltage that is higher than Zener diode ZD2 transistor Q1 conducting with the voltage that bottles up control electrode current or the drop-down SCR control utmost point forbidding the controllable silicon SCR conducting, thereby prevent overcharging of battery.
Referring now to Fig. 5, consider that battery 4 has fault, open circuit or can not supply voltage condition substantially because of other reason.When battery was opened a way, cond C1 was added to the voltage positive half-wave component charging of battery terminal BT by ACG1, in case and the voltage at C1 two ends when surpassing the threshold voltage of Zener diode ZD2, just conducting of transistor Q1.This just makes SCR turn-off conversely, thereby the voltage at C1 two ends was landed in a period of time.The time constant of this time cycle of Q1 conducting state by cond C1 and resistance R 3 definition determines, and provides the voltage waveform (for example saying, shown in several from the top down second figure of Fig. 5) of battery-end BT.In other words, at the time durations of Q1 conducting, even controllable silicon SCR also keeps off state and do not produce any voltage at battery terminal BT when charging terminal CH produces positive voltage.So the voltage of battery terminal BT is conditioned to such an extent that be no more than a certain specified level, and can avoid overcharging of battery 4.
But, when connecting under one among flash light LL and the RL the situation at battery open circuit since in the flasher relay 3 relation of inductance and battery terminal BT may form one as Fig. 5 from the negative voltage as shown in top several the 3rd figure.Therefore, even transistor Q1 conducting and node A are in ground state, the negative electrode of controllable silicon SCR still can be changed into the control utmost point that negative and electric current can flow through controllable silicon SCR by resistance R 1 and diode D2.Therefore, can not forbid the controllable silicon SCR conducting, a positive waveform may all appear at battery terminal BT in each week, causes battery terminal BT out of control, so that the load that is connected on the battery terminal BT may suffer a too high voltage.
If there is an appropriate functional battery to be connected to battery terminal, traditional battery charging voltage control circuit just can be worked satisfactorily.Even be connected under the situation of control circuit mouth at an inductive load, as long as this battery is connected and bring into play function, it just can absorb because of turning on and off the negative voltage that inductive load produces.But, be connected to the mouth of control circuit and do not exist under the situation of this battery at inductive load, the negative voltage of control circuit mouth just may hinder the proper control action of control circuit and the high potential (can produce in control circuit) that produced may cause adverse consequences, for example needs to use expensive relatively can bear high-tension element and undesirable high potential is added on the mobile unit.
Consider this class problem of prior art, a main purpose of the present invention provides a kind of automotive battery charging voltage control circuit, even also can prevent to form any too high voltage when battery is opened a way.
Second purpose of the present invention provides a kind of automotive battery charging voltage control circuit, even when load comprises an inductive element, it also can keep gratifying work.
The 3rd purpose of the present invention provides a kind of automotive battery charging voltage control circuit, and it is made saving and uses reliable under all conditions.
According to the present invention, a kind of automotive battery charging voltage control circuit is provided, comprising: a charging terminal that is connected to the AC generator output end; A battery terminal that is suitable for being connected to battery and load; A silicon control that is connected between charging terminal and the battery terminal, the control utmost point of controllable silicon linked described charging terminal and be connected battery terminal and the silicon controlled control utmost point between the battery overpressure prevention means, be used for when the detected voltage of battery terminal is higher than threshold level, forbidding that the silicon control conducting prevents to form any over voltage at battery terminal; It is characterized in that this automotive battery charging voltage control circuit further comprises control electrode current control setup, be connected between charging terminal and the silicon controlled control utmost point with prevent the work of battery overpressure prevention means and when battery terminal produces negative voltage electric current flow into the control utmost point.
Battery terminal has a negative voltage, for example, has put entirely under the situation of electricity at battery open circuit or battery, when a load with inductive element inserts or during shutoff, the negative voltage that is caused by load just may be added on the battery terminal.Be used for forbidding selectively that the battery overpressure prevention means of silicon control conducting can realize by any device, this device is by turn-on and turn-off silicon control between in due course and to keep the voltage of battery terminal be constant.Generally, the battery overpressure prevention means comprises an on-off element (for example transistor that is suitable for drop-down selectively SCR control pole tension when conducting), and the timekeeping circuit as the CR time constant circuit, maintained switch specific time cycle of element conductive when this circuit is higher than threshold level at the voltage that detects battery terminal.
For the negative voltage of allowing of accurate decision battery terminal, control electrode current control setup can comprise that one is connected Zener diode between the silicon controlled control utmost point and the on-off element to allow even will to control the voltage of the utmost point by on-off element when battery terminal produces certain negative voltage drop-down.Another method is to use a resistance or one group of diode to replace Zener diode.
Now, the present invention is described below with reference to accompanying drawing, in the accompanying drawings:
Fig. 1 is the circuit diagram according to the essential part of automobile-use charging voltage control circuit of the present invention;
Fig. 2 is the diagram of curves that illustrates according to various waveforms of the present invention;
Fig. 3 (a) is the circuit diagram of similar Fig. 1, and the second embodiment of the present invention is shown;
Fig. 3 (b) is the circuit diagram of similar Fig. 1, and the third embodiment of the present invention is shown;
Fig. 4 is the circuit diagram of conventional motor vehicle with the essential part of charging voltage control circuit; And
Fig. 5 is the diagram of curves that illustrates according to the various waveforms of prior art.
Fig. 1 illustrates a kind of application automotive battery charging voltage control circuit of the present invention, corresponding to those parts of top described prior art with identical numeral.The circuit of Fig. 1 comprises that a Zener diode that is used to control electrode current control is connected between the anode of resistance R 1 and diode D1 and diode D2 as control electrode current control setup, is used to control the voltage of the anode of SCR with respect to negative electrode.
If battery 4 is opened a way in the circuit of Fig. 1, then transistor Q1 is by the time gap of rule turn-on and turn-off repeatedly, and this time gap depends on cond C1 and resistance R 1 defined time constant with the mode the same with prior art.The same with prior art, when the voltage of battery terminal BT surpasses the threshold voltage of Zener diode ZD2, transistor Q1 conducting, the control electrode current that this has just stoped controllable silicon SCR makes not conducting of controllable silicon SCR.In addition, by suitably determine the on-state cycle of transistor Q1 with the CR time constant, the positive voltage that has just prevented ACG1 is added to battery terminal BT in each cycle, but is added on BT in the mode of cyclical intermission, and the voltage of battery terminal BT raises and can suitably control.Like this, just constituted based on the battery overpressure prevention means of forbidding the controllable silicon SCR conducting.
In this embodiment, by the Zener voltage V of control electrode current control Zener diode ZD1
zNegative threshold voltage (the V of decision
z) selected must be greater than doing as flasher relay 3 or other inductive loads Z and the negative voltage (V of appearance when open a way with battery
f), as among Fig. 2 from shown in top several second diagram of curves.
Therefore, when producing because during the negative voltage that the action of flash light relay 3 obtains, the anode of controllable silicon SCR has a voltage that is higher than its negative electrode, yet on the other hand, flows into but all Be Controlled electrode current control diode ZD1 preventions of electric current of the control utmost point.As a result, just do not control electrode current, and controllable silicon SCR become can not be in all conductings of each week, shown in the 4th diagram of curves that Fig. 2 counts from above.In other words, controllable silicon SCR is with a frequency conducting that has reduced, and the voltage of battery terminal BT can control as requested.
The voltage of node A changes with respect to the negative electrode of controllable silicon SCR, shown in the nethermost diagram of curves of Fig. 2.When the voltage of node A surpasses a threshold value V
Th(with the Zener voltage V of Zener diode ZD1
z, diode D
2The loss in voltage V at two ends
dAnd the control utmost point-cathode voltage V
GKThe form of sum provides) time, controllable silicon SCR conducting (Fig. 2 is from top several the 4th diagram of curves).Therefore, when control electrode current control Zener diode ZD1 did not exist, threshold value low corresponding quantity that becomes, and the voltage of node A is when rising to a positive level at every turn, controllable silicon SCR all can conductings, cause cell pressure to rise to out of contior stage.
According to the present invention, because the Zener voltage V of Zener diode ZD1
zBecome threshold value V
ThA component part, the voltage of node A rise since the conducting of transistor Q1 and deficiency so that the controllable silicon SCR conducting.
Control electrode current control Zener diode ZD1 is used as control electrode current control setup in the embodiment shown in fig. 1, but control electrode current control setup is not limited to Zener diode.For example say that it is such that image pattern 3 (a) illustrates, resistance R
4Can be used to replace Zener diode ZD1.In this situation, resistance R 4 should have a big relatively resistance, and for example it is 10K Ω when the resistance of resistance R 2 equals 2K Ω.
Can use one group of diode in series to replace Zener diode, shown in Fig. 3 (b).Embodiment shown in Fig. 3 can obtain and identical result embodiment illustrated in fig. 1.
So, according to the present invention, even because the turning on and off of the inductive load of this class of flash light relay, adding battery open circuit or battery has put electricity entirely and has produced a negative voltage at battery terminal, thereby make when a control electrode current is fed to the silicon controlled control utmost point, by provide a control electrode current control setup (preferably by be suitable for producing one greater than because of battery terminal above-mentioned with control the Zener diode that negative voltage between the utmost point is created in the voltage of the voltage difference between silicon controlled negative electrode and the anode and form).Still might prevent to control the actual silicon controlled control utmost point that is fed to of electrode current.Like this, just might can both carry out good battery charging voltage control, and prevent that in all cases the mal of battery terminal voltage from rising no matter battery is connected still to be disconnected.
Though the present invention narrates by its preferred embodiment.But obviously for the personnel that are familiar with this technology, various change examples and modification all allow, and do not need to break away from the scope of the present invention that proposes in appended claims.
Claims (7)
1. automotive battery charging voltage control circuit comprises:
A charging terminal that is connected to the AC generator output end;
A battery terminal that is suitable for being connected to battery and load;
A silicon control that is connected between charging terminal and the battery terminal, the silicon controlled control utmost point linked described charging terminal and
Be connected the battery overpressure prevention means between battery terminal and the silicon controlled control utmost point, be used for when the detected voltage of battery terminal is higher than threshold level, forbidding that the silicon control conducting prevents to form any over voltage at battery terminal;
It is characterized in that this automotive battery charging voltage control circuit further comprises control electrode current control setup, be connected between charging terminal and the silicon controlled control utmost point with prevent the work of battery overpressure prevention means and when battery terminal produces negative voltage electric current flow into the control utmost point.
2. according to the automotive battery charging voltage control circuit of claim 1, wherein the battery overpressure prevention means comprises an on-off element that is suitable for drop-down selectively SCR control pole tension when conducting, and the timer circuit in a specific time cycle of maintained switch element conductive when the detected voltage of battery terminal is higher than threshold level.
3. according to the automotive battery charging voltage control circuit of claim 2, wherein on-off element comprises a transistor.
4. according to the automotive battery charging voltage control circuit of claim 2, wherein timer circuit comprises a CR time constant circuit.
5. according to the automotive battery charging voltage control circuit of claim 2, wherein control the electrode current control setup and comprise a Zener diode that is connected between the SCR control utmost point and the on-off element, with permission even when battery terminal produces certain negative voltage, it is drop-down to control pole tension by on-off element.
6. according to the automotive battery charging voltage control circuit of claim 2, wherein control the electrode current control setup and comprise a resistance that is connected between the SCR control utmost point and the on-off element, with permission even when battery terminal produces certain negative voltage, it is drop-down to control pole tension by on-off element.
7. according to the automotive battery charging voltage control circuit of claim 2, wherein control the electrode current control setup and comprise one group of diode that is connected between the SCR control utmost point and the on-off element, with permission even when battery terminal produces certain negative voltage, it is drop-down to control pole tension by on-off element.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP121135/96 | 1996-04-18 | ||
| JP12113596A JP3213543B2 (en) | 1996-04-18 | 1996-04-18 | Automotive charging voltage control circuit |
| JP121135/1996 | 1996-04-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1166422A CN1166422A (en) | 1997-12-03 |
| CN1070430C true CN1070430C (en) | 2001-09-05 |
Family
ID=14803745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97110549A Expired - Fee Related CN1070430C (en) | 1996-04-18 | 1997-04-17 | Automotive battery charging voltage control circuit |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JP3213543B2 (en) |
| CN (1) | CN1070430C (en) |
| FR (1) | FR2747854B1 (en) |
| ID (1) | ID16626A (en) |
| IT (1) | IT1291567B1 (en) |
| TW (1) | TW385585B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4107816B2 (en) * | 2001-08-01 | 2008-06-25 | 新電元工業株式会社 | Generator voltage regulator |
| US7166990B2 (en) | 2003-05-12 | 2007-01-23 | Kare Hong Kong Limited | Battery low-voltage protecting device |
| JP4497404B2 (en) * | 2004-05-25 | 2010-07-07 | 本田技研工業株式会社 | Portable generator |
| DE102004045897A1 (en) * | 2004-09-22 | 2006-03-30 | Howaldtswerke-Deutsche Werft Gmbh | Battery system of a submarine |
| WO2006109958A1 (en) * | 2005-04-11 | 2006-10-19 | Withland Co., Ltd. | Apparatus for enhancing the performance of vehicles |
| JP4670656B2 (en) * | 2006-01-24 | 2011-04-13 | 株式会社デンソー | Vehicle power supply device |
| EP3558190B1 (en) | 2016-12-20 | 2021-10-13 | The Procter & Gamble Company | Method for making elastomeric laminates with elastic strands unwound from beams |
| CN111050718B (en) | 2017-09-01 | 2021-12-14 | 宝洁公司 | Method and apparatus for making elastomeric laminates |
| CN112165748B (en) * | 2020-08-26 | 2021-09-21 | 南京坤农信息技术有限公司 | Control system and control method for face acquisition and recognition |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2039170A (en) * | 1979-01-05 | 1980-07-30 | Paris & Du Rhone | Overvoltage protection device |
| CN86100872A (en) * | 1985-02-01 | 1986-07-30 | 株式会社日立制作所 | The voltage regulator of electric generators for automobile |
| US5202811A (en) * | 1989-02-14 | 1993-04-13 | Minks Floyd M | Electrical power system with high voltage protection responsive to plural control voltages |
| CN2208288Y (en) * | 1994-03-03 | 1995-09-20 | 陈启新 | Voltage regulator for vehicle permanent magnetic a.c. generator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3975670A (en) * | 1973-05-02 | 1976-08-17 | Mcdermott Julian A | Overvoltage protector for battery operated devices |
| DE3701056C2 (en) * | 1987-01-13 | 1994-05-26 | Licentia Gmbh | Device for charging a battery located on a vehicle with a linear drive |
-
1996
- 1996-04-18 JP JP12113596A patent/JP3213543B2/en not_active Expired - Fee Related
-
1997
- 1997-04-15 IT IT97MI000865A patent/IT1291567B1/en active IP Right Grant
- 1997-04-16 TW TW086104911A patent/TW385585B/en not_active IP Right Cessation
- 1997-04-17 CN CN97110549A patent/CN1070430C/en not_active Expired - Fee Related
- 1997-04-18 FR FR9704807A patent/FR2747854B1/en not_active Expired - Fee Related
- 1997-04-21 ID IDP971309A patent/ID16626A/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2039170A (en) * | 1979-01-05 | 1980-07-30 | Paris & Du Rhone | Overvoltage protection device |
| CN86100872A (en) * | 1985-02-01 | 1986-07-30 | 株式会社日立制作所 | The voltage regulator of electric generators for automobile |
| US5202811A (en) * | 1989-02-14 | 1993-04-13 | Minks Floyd M | Electrical power system with high voltage protection responsive to plural control voltages |
| CN2208288Y (en) * | 1994-03-03 | 1995-09-20 | 陈启新 | Voltage regulator for vehicle permanent magnetic a.c. generator |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09285035A (en) | 1997-10-31 |
| CN1166422A (en) | 1997-12-03 |
| ITMI970865A1 (en) | 1998-10-15 |
| JP3213543B2 (en) | 2001-10-02 |
| TW385585B (en) | 2000-03-21 |
| ID16626A (en) | 1997-10-23 |
| FR2747854B1 (en) | 2000-02-18 |
| IT1291567B1 (en) | 1999-01-11 |
| FR2747854A1 (en) | 1997-10-24 |
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| SE01 | Entry into force of request for substantive examination | ||
| 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 |