CN103095124A - Adjusting apparatus of output voltage for low voltage dc-dc converter - Google Patents
Adjusting apparatus of output voltage for low voltage dc-dc converter Download PDFInfo
- Publication number
- CN103095124A CN103095124A CN2012102773556A CN201210277355A CN103095124A CN 103095124 A CN103095124 A CN 103095124A CN 2012102773556 A CN2012102773556 A CN 2012102773556A CN 201210277355 A CN201210277355 A CN 201210277355A CN 103095124 A CN103095124 A CN 103095124A
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- China
- Prior art keywords
- voltage
- output
- transducer
- digital controlled
- switching
- 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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/157—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators with digital control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
- B60R16/033—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for characterised by the use of electrical cells or batteries
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
The present invention provides an adjusting apparatus of output voltage for a low voltage DC-DC converter, which adjusts output voltage corresponding with the input tuning voltage. The adjusting apparatus is characterized by comprising the following components: a control part which can generate and output a digital control signal for controlling the tuning voltage; a switching part which performs corresponding switching according to the digital control signal that is output from the control part; and a voltage output part which outputs a corresponding tuning voltage according to switching of the switching part. Thus, the adjusting apparatus realizes output voltage adjustment through a MOSFET switch and a resistor module, and the automatic IC component such as commonly used DAC and OP amplifier are replaced, thereby simplifying layout and reducing manufacturing cost.
Description
Technical field
A kind of automobile-used low voltage DC-DC transducer that relates to of the present invention says the output voltage regulator of the low-voltage CD-CD transducer that relates to a kind of output voltage that can regulate automobile-used low voltage DC-DC transducer more in detail.
Background technology
Traditional automobile-used low voltage DC-DC transducer (Low voltage DC-DC Converter, LDC), its role is to, the high-voltage direct-current voltage transitions that to export from the high-voltage battery of motor vehicle driven by mixed power is low-voltage direct-current voltage, and offers the electric field load of the vehicle such as boosting battery.
At this, regulate automobile-used low voltage DC-DC transducer output voltage be, as shown in the block diagram of Fig. 1, the control signal of master controller 12 realizes by microprocessor 14, DAC (Digital to Analog Converter) 16 and OP amplifier 18 generation tuning voltage (VREF).
Specifically, as the master controller 12 of HCU (Hybrid Control Unit) etc., by the CAN communication control signal of output voltage of adjusting low voltage DC-DC transducer; For example, passed on 14V, microprocessor 14 can convey to DAC16 with corresponding digital controlled signal; DAC16 converts this digital controlled signal to analog signal and conveys to OP amplifier 18; OP amplifier 18 can be the required tuning voltage (VREF) of output voltage of regulating low voltage DC-DC transducer with the analog signal conversion of conversion, conveys to low voltage DC-DC transducer.
As mentioned above, the layout of the output voltage regulation technology of traditional low voltage DC-DC transducer is in order to regulate the IC element that can need to add as DAC and OP amplifier and so on; Therefore problem complicated, that cost of manufacture can rise that circuit becomes can appear.
Patent documentation: KR10-2010-0114751A, 2010.10.26, Fig. 2
Summary of the invention
(technical problem that will solve)
The object of the present invention is to provide the output voltage regulator of a kind of low voltage DC-DC transducer, its layout is used and is substituted the required DAC (Digital to Analog Converter) of the output voltage of regulating low voltage DC-DC transducer and OP amplifier and so on manual element of IC element automatically, layout is become simplify and can reduce cost of manufacture.
(means of dealing with problems)
In order to realize purpose as mentioned above, according to the tuning voltage of inputting, output voltage is regulated, the output voltage regulator of low voltage DC of the present invention-DC transducer is characterized in that, comprise: in order to control tuning voltage, can generate and export the control part of digital controlled signal; The digital controlled signal of exporting according to described control part is made the switching part of corresponding switching; And the Voltage-output section that exports corresponding tuning voltage according to the switching of described switching part.
Described control part, digital controlled signal can according to the output rank of described tuning voltage, be set the BITS number of corresponding signal; Described switching part can possess and the corresponding switching device of described BITS number.
Described control part, digital controlled signal are set as the BITS number of corresponding signal according to the output rank of described tuning voltage; Described switching part is set to a plurality ofly according to the BITS number of described digital controlled signal, possess the MOSFET switch that switches according to described digital controlled signal, the source terminal ground connection of described MOSFET switch, and drain electrode end is connected in described Voltage-output section.
At this, described Voltage-output section possesses, respectively be connected to the resistive module of described tuning voltage output and drive DC power supply, described resistive module possesses than described BITS number Duos the resistive element of, one end of described resistive element is connected with output respectively, the other end ground connection of a resistive element in described resistive element, the other end of all the other resistive elements are connected with the drain electrode end of described MOSFET switch respectively.
(effect of invention)
The output voltage regulator of the low voltage DC according to the present invention-DC transducer, its effect is, utilize MOSFET and resistive module, substituted in traditional low voltage DC-DC transducer for regulation output voltage, the automatic IC element of the picture DAC that uses and OP amplifier and so on becomes layout and simplifies and can reduce cost of manufacture.
Description of drawings
Fig. 1 means the theory diagram of the output voltage adjusting method of traditional automobile-used low voltage DC-DC transducer.
Fig. 2 means the circuit diagram of the output voltage regulator of low voltage DC according to one embodiment of the invention-DC transducer.
(description of reference numerals)
100: the output voltage regulator of low voltage DC-DC transducer
110: control part
120: switching part
130: output voltage section
132: resistive module
134: drive DC power supply
136: output
Embodiment
With reference to the accompanying drawings the embodiment of the output voltage regulator of low voltage DC according to the present invention-DC transducer described.The output voltage regulator of automobile-used low voltage DC-DC transducer has, and will be converted to low-voltage from the power supply that the high-voltage dc power supply of vehicle is inputted, and offers the electric field load of vehicle; Regulate the function of corresponding output voltage according to the tuning voltage of inputting.
Fig. 2 is the circuit diagram of the output voltage regulator of the low voltage DC-DC transducer according to one embodiment of the invention.As shown in Figure 2, the output voltage regulator 100 of low voltage DC-DC transducer can be made of control part 110, switching part 120 and Voltage-output section 130.
For example, described in the table 1 of chatting after reaching as Fig. 2, control part 110 need to have " D01 ", " D02 " two BITS numbers equally to export to switching part 120 in order to control low voltage DC-DC transducer by the tuning voltage (VREF) of four grades.
Switching part 120 is to switch accordingly according to digital controlled signal D01, D02 that control part 110 is exported, regulates the tuning voltage (VREF) of exporting by Voltage-output section 130.
Switching part 120 can according to the BITS number of digital controlled signal, possess corresponding a plurality of switching device.Herein, as shown in Figure 2, switching device can correspondingly be prepared two MOSFET switch Q1, Q2 according to the BITS number.The source terminal of MOSFET switch can be grounded separately, and drain electrode end can be connected to Voltage-output section 130, and switches according to digital controlled signal D01, D02.
Voltage-output section 130 is according to the switching output corresponding tuning voltage (VREF) of switching part 120, and as shown in Figure 1, the output 136 of tuning voltage (VREF) can possess the resistive module 132 of joining therewith separately and drive DC power supply 134.
Thereby as described in Table 1, by the tuning voltage (VREF) that the output 136 of Voltage-output section 130 is exported, the worthwhile total resistance value of resistive module 132 that can change according to the switching of switching part 120 is decided.
Table 1:
When the BITS number of digital controlled signal D01, D02 was " n ", the kind of the output level of tuning voltage (VREF) was just 2n.As described in Table 1, when digital controlled signal D01, D02 were 2Bit, the output level of tuning voltage (VREF) was just four.Therefore, the output voltage of low voltage DC-DC transducer can be regulated according to four grades of this tuning voltage (VREF).
As mentioned above, realized utilizing MOSFET switch Q1, Q2 and resistive module 132 to substitute common DAC used and OP amplifier according to the output voltage regulator 100 of the low voltage DC of the present embodiment-DC transducer, layout has been become simplify and reduced cost of manufacture.
Claims (5)
1. the output voltage regulator of low voltage DC-DC transducer, the corresponding tuning voltage of inputting is come regulation output voltage, it is characterized in that, comprising:
In order to control tuning voltage, can generate and export the control part of digital controlled signal;
The digital controlled signal of exporting according to described control part is made the switching part of corresponding switching; And
Export the Voltage-output section of corresponding tuning voltage according to the switching of described switching part.
2. the output voltage regulator of low voltage DC according to claim 1-DC transducer, is characterized in that, described control part, digital controlled signal are set as the BITS number of corresponding signal according to the output rank of described tuning voltage.
3. the output voltage regulator of low voltage DC according to claim 1-DC transducer, is characterized in that, described control part, digital controlled signal are set as the BITS number of corresponding signal according to the output rank of described tuning voltage;
Described switching part possesses the corresponding switching device of described BITS number.
4. the output voltage regulator of low voltage DC according to claim 1-DC transducer, is characterized in that, described control part, digital controlled signal are set as the BITS number of corresponding signal according to the output rank of described tuning voltage;
Described switching part is set to a plurality ofly according to the BITS number of described digital controlled signal, possess the MOSFET switch that switches according to described digital controlled signal, the source terminal ground connection of described MOSFET switch, and drain electrode end is connected in described Voltage-output section.
5. the output voltage regulator of low voltage DC according to claim 4-DC transducer, is characterized in that, described Voltage-output section possesses, be connected to described tuning voltage output resistive module and drive DC power supply;
Described resistive module possesses than described BITS number Duos a resistive element, one end of described resistive element is connected with output respectively, the other end ground connection of a resistive element in described resistive element, the other end of all the other resistive elements are connected with the drain electrode end of described MOSFET switch respectively.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2011-0112816 | 2011-11-01 | ||
| KR1020110112816A KR20130047964A (en) | 2011-11-01 | 2011-11-01 | Adjusting apparatus of output voltage for low voltage dc-dc converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103095124A true CN103095124A (en) | 2013-05-08 |
Family
ID=48207367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102773556A Pending CN103095124A (en) | 2011-11-01 | 2012-08-06 | Adjusting apparatus of output voltage for low voltage dc-dc converter |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR20130047964A (en) |
| CN (1) | CN103095124A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87204981U (en) * | 1987-03-22 | 1987-11-04 | 林荣佐 | Automatic ac voltage regulator |
| JP2005145208A (en) * | 2003-11-14 | 2005-06-09 | Sumitomo Wiring Syst Ltd | Method and device for suppressing brightness variation |
| CN1967990A (en) * | 2005-11-18 | 2007-05-23 | 鸿富锦精密工业（深圳）有限公司 | Variable DC voltage source |
| JP2007135305A (en) * | 2005-11-10 | 2007-05-31 | Toyota Industries Corp | Dc/dc converter |
| CN201113794Y (en) * | 2007-05-14 | 2008-09-10 | 深圳艾科创新微电子有限公司 | Device for switch tube accomplishing voltage switch |
| CN201783094U (en) * | 2010-07-30 | 2011-04-06 | 闻亚彬 | Reduced ion therapeutic apparatus outputting adjustable positive-negative asymmetric sine wave |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20070113478A (en) * | 2006-05-24 | 2007-11-29 | 주식회사 대우일렉트로닉스 | Apparatus for controlling voltage out of dc-dc converter |
| JP4791260B2 (en) * | 2006-06-09 | 2011-10-12 | 富士通セミコンダクター株式会社 | DC-DC converter, control circuit for DC-DC converter, and control method for DC-DC converter |
| WO2009134249A1 (en) * | 2008-04-29 | 2009-11-05 | Semiconductor Components Industries, L.L.C. | Method for regulating an output voltage |
| JP2009303317A (en) * | 2008-06-11 | 2009-12-24 | Ricoh Co Ltd | Reference voltage generating circuit and dc-dc converter with that reference voltage generating circuit |
| JP5315078B2 (en) * | 2009-02-10 | 2013-10-16 | ザインエレクトロニクス株式会社 | Comparator DC-DC converter using synchronous rectification |
| KR101028020B1 (en) * | 2009-12-04 | 2011-04-13 | 기아자동차주식회사 | Method for controlling 12v battery charging voltage of hybrid vehicle |
-
2011
- 2011-11-01 KR KR1020110112816A patent/KR20130047964A/en not_active Application Discontinuation
-
2012
- 2012-08-06 CN CN2012102773556A patent/CN103095124A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87204981U (en) * | 1987-03-22 | 1987-11-04 | 林荣佐 | Automatic ac voltage regulator |
| JP2005145208A (en) * | 2003-11-14 | 2005-06-09 | Sumitomo Wiring Syst Ltd | Method and device for suppressing brightness variation |
| JP2007135305A (en) * | 2005-11-10 | 2007-05-31 | Toyota Industries Corp | Dc/dc converter |
| CN1967990A (en) * | 2005-11-18 | 2007-05-23 | 鸿富锦精密工业（深圳）有限公司 | Variable DC voltage source |
| CN201113794Y (en) * | 2007-05-14 | 2008-09-10 | 深圳艾科创新微电子有限公司 | Device for switch tube accomplishing voltage switch |
| CN201783094U (en) * | 2010-07-30 | 2011-04-06 | 闻亚彬 | Reduced ion therapeutic apparatus outputting adjustable positive-negative asymmetric sine wave |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20130047964A (en) | 2013-05-09 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130508 |
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| RJ01 | Rejection of invention patent application after publication |