WO2015125844A1 - 電源装置 - Google Patents
電源装置 Download PDFInfo
- Publication number
- WO2015125844A1 WO2015125844A1 PCT/JP2015/054532 JP2015054532W WO2015125844A1 WO 2015125844 A1 WO2015125844 A1 WO 2015125844A1 JP 2015054532 W JP2015054532 W JP 2015054532W WO 2015125844 A1 WO2015125844 A1 WO 2015125844A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- output voltage
- voltage
- power supply
- output
- supply device
- Prior art date
Links
Images
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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C5/00—Details of stores covered by group G11C11/00
- G11C5/14—Power supply arrangements, e.g. power down, chip selection or deselection, layout of wirings or power grids, or multiple supply levels
- G11C5/148—Details of power up or power down circuits, standby circuits or recovery circuits
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/36—Means for starting or stopping converters
-
- 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
- H02M3/158—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 including plural semiconductor devices as final control devices for a single load
-
- 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
- H02M3/158—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 including plural semiconductor devices as final control devices for a single load
- H02M3/1582—Buck-boost converters
-
- 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
- H02M3/158—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 including plural semiconductor devices as final control devices for a single load
- H02M3/1588—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 including plural semiconductor devices as final control devices for a single load comprising at least one synchronous rectifier element
-
- 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
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0025—Arrangements for modifying reference values, feedback values or error values in the control loop of a converter
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Definitions
- the present invention relates to a power supply device in which a pre-bias voltage is externally applied between output terminals even when the operation of a converter is stopped.
- a switching power supply device including a general step-down converter circuit is disclosed in Patent Document 1, for example.
- the switching power supply device of Patent Document 1 includes a control circuit that synchronously rectifies a high-side MOS-FET and a low-side MOS-FET, and is configured to increase power conversion efficiency by the control.
- Patent Document 2 discloses a power supply device that is connected in parallel to a power supply device that includes a converter and a storage battery and that is operated in parallel. Each power supply device of Patent Document 2 has a function of changing the output voltage of the converter.
- JP 2013-207993 A Japanese Patent Laid-Open No. 10-112942
- a power supply device including a converter that controls a switching element by feedback control is operated by comparing a set voltage with an actual output voltage as shown in Patent Document 1, a set value of an output voltage and a current value are If the difference is too large, the converter may not start properly. For example, due to the difference between the set value of the output voltage and the current value being too large, the operation of other circuits such as the protection system circuit may cause a protective operation before the converter is started. The phenomenon that does not occur.
- An object of the present invention is to provide a power supply device that eliminates an abnormal operation at the time of startup in a power supply device in which a pre-bias voltage is applied between output terminals.
- a power supply device includes a converter unit that performs power conversion, an output voltage detection unit that detects an output voltage, and a power supply device according to a comparison result between a detection voltage of the output voltage of the converter unit and a reference voltage
- An output voltage control unit that performs control to bring the output voltage close to the set voltage
- command value reading means that reads a command value related to the output voltage from the outside, and is connected between the output terminals even when the operation of the converter unit is stopped
- Output voltage setting means In a power supply device in which a voltage is applied between the output terminals from an external circuit that is Temporarily setting the output voltage so that the output voltage is equal to or approximate to a preset target voltage that is higher than the voltage applied from the external circuit and lower than the command value at the start of the operation of the converter unit.
- Output voltage setting means And a steady output voltage setting means for setting the output voltage so that the output voltage becomes a voltage based on an external command value after the output voltage reaches the same value or approximate value as the target voltage
- a power supply device includes a converter unit that performs power conversion, an output voltage detection unit that detects an output voltage, and a power supply device according to a comparison result between a detection voltage of the output voltage of the converter unit and a reference voltage
- An output voltage control unit that performs control to bring the output voltage close to the set voltage
- command value reading means that reads a command value related to the output voltage from the outside, and is connected to the output terminal even when the operation of the converter is stopped
- a power supply device in which a voltage is applied between the output terminals from an external circuit that is The output voltage detection unit detects a voltage applied from the external circuit, and sets the output voltage so that the output voltage is equal to or approximate to the voltage applied from the external circuit when the converter starts operating.
- a resistance voltage dividing circuit for dividing the voltage between the output terminals is provided, and the temporary output voltage setting means and the steady output voltage setting means are voltages superimposed on the resistance voltage dividing circuit. It is preferable that the output voltage is set by switching the. According to this configuration, the output voltage can be easily set.
- the temporary output voltage setting means and the steady output voltage setting means set the output voltage by controlling the reference voltage. It is preferable to configure as above.
- the command value reading means, the temporary output voltage setting means and the steady output voltage setting means are constituted by a microcontroller IC, and the output voltage control unit is a PWM control IC.
- the output voltage control unit is a PWM control IC.
- a general-purpose PWM control IC can be used, and control at startup can be easily performed by control of the microcontroller IC.
- the command value reading means, temporary output voltage setting means, steady output voltage setting means, and output voltage control section can be configured by a single DSP. According to this configuration, the circuits are integrated and the size can be reduced.
- the converter unit is an inductor connected in series between an input power supply and an output power supply, and a first switch element that supplies an exciting current to the inductor when it is turned on It is preferable that the step-down converter includes a second switch element that supplies a return current to the inductor when it is turned on. According to this configuration, a circuit is configured with a small number of components, and a highly efficient converter operation is possible. In addition, a reverse current flows only in a short period when the set value of the output voltage is lower than the pre-bias voltage.
- the difference between the command value and the current value does not become too large, and an abnormal operation such as a start-up failure can be prevented.
- FIG. 1 is a circuit diagram showing a part of the power supply device according to the first embodiment.
- FIG. 2 is a circuit diagram of the power supply device according to the first embodiment.
- FIG. 3 is a diagram showing the transition of each voltage when the power supply apparatus 101 is started up under the control of the microcontroller 11 and the PWM control IC 12.
- FIG. 4 is a diagram illustrating the state of each section in FIG.
- FIG. 5 is a circuit diagram of the power supply apparatus 102 according to the second embodiment.
- FIG. 6 is a block diagram of a power supply system according to the third embodiment.
- FIG. 7 is a diagram illustrating the transition of each voltage when the power supply device according to the fourth embodiment is started.
- FIG. 8 is a diagram illustrating the state of each section in FIG.
- FIG. 9 is a circuit diagram of a main part of the power supply device 105 according to the fifth embodiment.
- FIG. 1 is a circuit diagram illustrating a part of the power supply device according to the first embodiment
- FIG. 2 is a circuit diagram of the power supply device.
- the power supply apparatus 101 of this embodiment is a power supply apparatus in which a terminal + Vin is an input power supply terminal and a terminal + Vout is an output power supply terminal, and includes an output voltage setting unit 1, an output voltage control unit 2, and a converter unit.
- the converter unit includes an inductor L1 connected in series with the first switch element Q1 between the input power supply terminal and the output power supply terminal, a first switch element Q1 that supplies an exciting current to the inductor L1 when turned on, and a return to the inductor when turned on.
- a second switching element Q2 that conducts current, an input capacitor C1, and a smoothing capacitor C2 are provided.
- the converter unit When the first switch element Q1 and the second switch element Q2 are switched by the output voltage control unit 2, the converter unit operates as a step-down converter. That is, the first switch element Q1 and the second switch element Q2 are alternately turned on / off, the inductor L1 is excited during the on period of the first switch element Q1, and the return current is supplied to the inductor during the on period of the second switch element Q2. Flowing.
- the step-down voltage is controlled by the on-duty ratio of the first switch element Q1.
- the output voltage setting unit 1 receives a command signal input from the outside and determines a set value of the output voltage for the output voltage control unit 2.
- FIG. 2 shows a specific example of the output voltage setting unit 1 and the output voltage control unit 2.
- a battery is connected between the output terminal + Vout and the GND terminal.
- This battery is an example of an external circuit according to the present invention.
- the microcontroller 11 operates using the voltage (battery voltage) of the output terminal + Vout of the power supply apparatus 101 as the power supply voltage.
- the microcontroller 11 reads a command value of serial data input to the remote control terminal REC from an external host device, and outputs a control voltage for the PWM control IC 12 from the signal terminal Sig. Further, it operates using the input voltage to the power supply terminal Vin of the microcontroller 11 as a power supply, and detects the input voltage.
- the portion of the microcontroller 11 that performs voltage detection is an example of the “output voltage detector” according to the present invention.
- the PWM control IC 12 operates using the output terminal + Vout voltage (battery voltage) of the power supply device 101 as the power supply voltage.
- the PWM control IC 12 generates a PWM modulation signal according to the comparison result between the input voltage of the feedback terminal FB and the internally generated reference voltage, and the first switch element Q1 and the second switch element Q2 from the output terminals HO and LO.
- the gate signal to is output.
- resistors R1 and R2 are voltage dividing circuits, which divide the output voltage to the output terminal + Vout and input it to the feedback terminal FB.
- the signal terminal Sig of the microcontroller 11 is connected to the feedback terminal FB via the resistor R3.
- the PWM control IC 12 controls the on-duty ratio of the PWM modulation signal so that the voltage of the feedback terminal FB becomes equal to the reference voltage. This keeps the voltage at the output terminal + Vout at the set value.
- the control voltage supplied from the microcontroller 11 is superimposed on the voltage of the resistance voltage dividing circuit by the resistors R1 and R2, and the resultant voltage becomes the voltage of the feedback terminal FB. Therefore, the microcontroller 11 sets the output voltage according to the output voltage to the signal terminal Sig.
- FIG. 3 is a diagram showing the transition of each voltage when the power supply apparatus 101 is started up under the control of the microcontroller 11 and the PWM control IC 12.
- FIG. 4 is a diagram illustrating the state of each section in FIG.
- a temporary output voltage setting value of the output voltage is determined according to the battery voltage detected in the section (2), and a corresponding control voltage is output to the PWM control IC 12. If the battery voltage detected in the section (2) is 10V, for example, the temporary output voltage setting value is set to 10V.
- the PWM control IC 12 starts operation and performs feedback control by controlling the on-duty ratio of the PWM modulation signal so that the output voltage of the output terminal + Vout becomes the temporary output voltage setting value. Therefore, as shown in the section (3) in FIG. 3, the output voltage gradually increases.
- the operation means of the microcontroller 11 is an example of “temporary output voltage setting means” according to the present invention.
- This section (3) is, for example, several ms.
- the section (3) is a state transition period and is a short time.
- a control voltage corresponding to the set value of the original output voltage based on the command value (a steady output set value, for example, 12 V) is output to the PWM control IC 12.
- the PWM control IC 12 performs feedback control by controlling the on-duty ratio of the PWM modulation signal so that the output voltage of the output terminal + Vout becomes the steady output set value. Therefore, as shown in section (5) of FIG. 3, the output voltage becomes a steady output set value, and the charging voltage of the battery gradually increases. After that, the output voltage of the power supply device 101 and the battery voltage maintain a steady value of 12V.
- the operation means of the microcontroller 11 is an example of “steady output voltage setting means” according to the present invention.
- the microcontroller 11 and the PWM control IC 12 do not operate, so the period is the same as the section (1).
- the battery voltage pre-bias voltage
- the difference between the command value of the output voltage and the current value does not become too large, and the command value of the output voltage is not extremely lower than the pre-bias voltage, so that the startup failure is not caused. Can prevent abnormal operation.
- the temporary output voltage setting means sets the voltage equal to the pre-bias voltage as the temporary output voltage, but the temporary output voltage may not exactly match the pre-bias voltage. If the difference between the temporary output voltage and the actual pre-bias voltage is small to some extent and the converter is normally started, it may be substantially the same value or an approximate value.
- the output of the signal terminal Sig is not limited to an analog signal, and may be a PWM modulation signal. In that case, a smoothing circuit connected to the signal terminal Sig may be provided outside.
- FIG. 5 is a circuit diagram of the power supply apparatus 102 according to the second embodiment.
- the connection relationship between the microcontroller 11 and the PWM control IC 12 is different from the power supply device 101 shown in FIG. 1 in the first embodiment.
- the PWM control IC 12 includes a reference voltage terminal Vref for inputting a reference voltage from the outside.
- the signal terminal Sig of the microcontroller 11 is connected to the reference voltage terminal Vref of the PWM control IC 12.
- the microcontroller 11 applies a reference voltage to the reference voltage terminal Vref of the PWM control IC 12.
- the PWM control IC 12 controls the on-duty of the PWM modulation signal so that the voltage at the reference voltage terminal (reference voltage) is equal to the voltage at the feedback terminal FB.
- the microcontroller 11 controls the output voltage by controlling the reference voltage of the PWM control IC 12. That is, the setting of the temporary output voltage setting value and the steady output setting value of the output voltage shown in the first embodiment is determined by the reference voltage of the PWM control IC 12. For example, when control equivalent to the example shown in FIG. 3 is performed, the reference voltage of the PWM control IC 12 is determined so that the output voltage becomes 10 V in the section (3). Further, the reference voltage of the PWM control IC 12 is determined so that the output voltage becomes 12V in the section (5).
- the connection configuration between the microcontroller 11 and the PWM control IC 12 is simplified.
- FIG. 6 is a block diagram of a power supply system according to the third embodiment.
- This embodiment is an example of a power supply system in which input units and output units of a plurality of power supply apparatuses 101A, 101B,.
- the configuration of each of the power supply devices 101A, 101B,... 101N is the same as the power supply device shown in the first or second embodiment.
- the present invention can prevent abnormal operation such as a start-up failure by the action shown in the first and second embodiments.
- FIG. 7 is a diagram showing the transition of each voltage when the power supply device of this embodiment is started.
- FIG. 8 is a diagram illustrating the state of each section in FIG. The operation for each section is as follows.
- a temporary output voltage set value is determined as a target voltage that is higher than the battery voltage (pre-bias voltage) and lower than the command value. Since the range of the battery voltage is known in advance and is not based on the current battery voltage, the temporary output voltage setting value can be determined in advance.
- the temporary output voltage set value may be higher than the battery voltage (pre-bias voltage) as long as it does not cause a start-up failure. Thereby, as shown in the section (2) of FIG. 7, the output voltage gradually increases.
- the temporary output voltage setting value is a predetermined value, and it is not necessary to detect the battery voltage (pre-bias voltage) before starting, so that the operation procedure at the time of starting can be simplified. That is, the section (2) in FIG. 3 shown in the first embodiment is not necessary.
- FIG. 9 is a circuit diagram of a main part of a power supply device according to the fifth embodiment. 2 differs from the power supply apparatus shown in FIG. 2 in the first embodiment in that a switch element SW is provided in the line of the output power supply terminal + Vout. Further, the control of the microcontroller 11 is different.
- the microcontroller 11 of the power supply device 105 of the present embodiment performs the control shown in FIG. 3 or FIG. 7, but the switch SW in the section (4) (5) in FIG. 3 or the section (3) (4) in FIG. Turn on.
- the output voltage setting unit 1 illustrated in FIG. 1 is configured by the microcontroller 11, and the main part of the output voltage control unit 2 is configured by the PWM control IC 12.
- the output voltage setting unit 1 and the output voltage control unit 2 shown in FIG. 1 can be combined and configured by a single DSP (Digital Signal Processor). As a result, the circuits are integrated and the size can be reduced.
- DSP Digital Signal Processor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
Description
前記コンバータ部の動作開始時に、出力電圧が、前記外部回路から印加される電圧より高く、前記指令値よりも低い予め設定された目標電圧と同値または近似値になるように出力電圧を設定する一時出力電圧設定手段と、
前記出力電圧が前記目標電圧と同値または近似値に達した後、出力電圧が外部からの指令値による電圧となるように出力電圧を設定する定常出力電圧設定手段と、を備えたことを特徴とする。
前記出力電圧検出部により前記外部回路から印加される電圧を検出し、前記コンバータの動作開始時に、出力電圧が前記外部回路から印加される電圧と同値または近似値になるように出力電圧を設定する一時出力電圧設定手段と、前記出力電圧が前記外部回路から印加される電圧と同値または近似値に達した後、出力電圧が外部からの指令値による電圧となるように出力電圧を設定する定常出力電圧設定手段と、を備えたことを特徴とする。
図1は第1の実施形態に係る電源装置の一部をブロック図化した回路図、図2は同電源装置の回路図である。
区間(1)では、マイクロコントローラ11およびPWM制御IC12には、外部回路から印加される電圧であるバッテリー電圧(プリバイアス電圧)が電源電圧として印加されているが、外部からマイクロコントローラ11への指令値は受けていない。また、PWM制御IC12は動作を停止している状態である。したがって、第1スイッチ素子Q1、第2スイッチ素子Q2共にオフ状態である。
外部から出力電圧の指令値が入力されると、マイクロコントローラ11は先ずバッテリー電圧(プリバイアス電圧)を検出する。
区間(2)で検出したバッテリー電圧に応じて、出力電圧の一時出力電圧設定値を定め、それに相当する制御電圧をPWM制御IC12へ出力する。区間(2)で検出したバッテリー電圧が例えば10Vであれば、一時出力電圧設定値を10Vに定める。PWM制御IC12は動作を開始して、出力端子+Voutの出力電圧が上記一時出力電圧設定値になるようにPWM変調信号のオンデューティ比を制御することでフィードバック制御を行う。そのため、図3の区間(3)に示すように、出力電圧は次第に上昇する。このマイクロコントローラ11の動作手段が本発明に係る「一時出力電圧設定手段」の例である。この区間(3)は例えば数msである。区間(3)は状態遷移の期間であって、短時間である。
電源装置101の出力電圧がバッテリー電圧に達した状態を保つ。この区間(4)は例えば数ms~50ms程度である。
上記指令値による本来の出力電圧の設定値(定常出力設定値であり、例えば12V)に相当する制御電圧をPWM制御IC12へ出力する。これにより、PWM制御IC12は出力端子+Voutの出力電圧が上記定常出力設定値になるようにPWM変調信号のオンデューティ比を制御することでフィードバック制御を行う。そのため、図3の区間(5)に示すように、出力電圧は定常出力設定値になるとともに、バッテリーの充電電圧が次第に上昇する。その後は、電源装置101の出力電圧およびバッテリー電圧が定常値12Vを保つ。このマイクロコントローラ11の動作手段が本発明に係る「定常出力電圧設定手段」の例である。
図5は第2の実施形態に係る電源装置102の回路図である。第1の実施形態で図1に示した電源装置101とは、マイクロコントローラ11およびPWM制御IC12の接続関係が異なる。図5においてPWM制御IC12は、基準電圧を外部から入力する基準電圧端子Vrefを備える。マイクロコントローラ11の信号端子SigはPWM制御IC12の基準電圧端子Vrefに接続されている。この構成により、マイクロコントローラ11はPWM制御IC12の基準電圧端子Vrefへ基準電圧を与える。
図6は第3の実施形態に係る電源システムのブロック図である。本実施形態は複数の電源装置101A,101B・・・101Nの入力部および出力部をそれぞれ並列接続して並列運転する電源システムの例である。各電源装置101A,101B・・・101Nの構成は第1または第2の実施形態で示した電源装置と同じである。
第4の実施形態の電源装置の回路構成は、第1の実施形態で図1、図2に示したものと同じであるが、出力電圧設定部1の制御内容が異なる。
バッテリー電圧(プリバイアス電圧)が電源電圧として印加されているが、外部からの指令値は受けていない。この区間(1)は第1の実施形態で図3に示した区間(1)と同じである。
バッテリー電圧(プリバイアス電圧)より高く、上記指令値より低い目標電圧としての一時出力電圧設定値を定める。バッテリー電圧の範囲は予め分かっていて、且つ現在のバッテリー電圧に基づかないので、一時出力電圧設定値は予め決定しておくことができる。この一時出力電圧設定値は起動不良を起こさない程度であれば、バッテリー電圧(プリバイアス電圧)より高い電圧であってもよい。これにより、図7の区間(2)に示すように、出力電圧は次第に上昇する。
電源装置の出力電圧が一時出力電圧設定値の電圧に達した状態を保つ。この区間(3)は第1の実施形態で図3に示した区間(4)に対応する。
電源装置の出力電圧が上記指令値による本来の出力電圧の設定値(定常出力設定値)に相当する電圧となるように制御する。これにより、図7の区間(4)に示すように、出力電圧は定常出力設定値になるとともに、バッテリーの充電電圧が次第に上昇する。その後は、電源装置の出力電圧およびバッテリー電圧が定常値を保つ。この区間(4)は第1の実施形態で図3に示した区間(5)に対応する。
図9は第5の実施形態に係る電源装置の主要部の回路図である。第1の実施形態で図2に示した電源装置とは、出力電源端子+Voutのラインにスイッチ素子SWを備えた点で異なる。また、マイクロコントローラ11の制御が異なる。
第1、第2、第5の実施形態では、図1に示した出力電圧設定部1をマイクロコントローラ11で構成し、出力電圧制御部2の主要部をPWM制御IC12で構成した例を示したが、図1に示した出力電圧設定部1および出力電圧制御部2を合わせて単一のDSP(Digital Signal Processor) で構成することもできる。そのことにより、回路が集約化されて、小型化が図れる。
C2…平滑コンデンサ
FB…フィードバック端子
HO,LO…出力端子
L1…インダクタ
Q1…第1スイッチ素子
Q2…第2スイッチ素子
R1,R2,R3…抵抗
REC…リモートコントロール端子
Sig…信号端子
SW…スイッチ
Vin…電源端子
Vref…基準電圧端子
1…出力電圧設定部
2…出力電圧制御部
11…マイクロコントローラ
12…PWM制御IC
101,102,105…電源装置
101A,101B・・・101N…電源装置
Claims (7)
- 電力変換を行うコンバータ部と、出力電圧を検出する出力電圧検出部と、前記コンバータ部の出力電圧の検出電圧と基準電圧との比較結果に応じて電源装置の出力電圧を設定電圧に近づける制御を行う出力電圧制御部と、外部から出力電圧に関する指令値を読み取る指令値読み取り手段と、を有し、前記コンバータ部の動作停止時にも、出力端子間に接続されている外部回路から前記出力端子間に電圧が印加される電源装置において、
前記コンバータ部の動作開始時に、出力電圧が、前記外部回路から印加される電圧より高く、前記指令値よりも低い予め設定された目標電圧と同値または近似値になるように出力電圧を設定する一時出力電圧設定手段と、
前記出力電圧が前記目標電圧と同値または近似値に達した後、出力電圧が外部からの指令値による電圧となるように出力電圧を設定する定常出力電圧設定手段と、を備えたことを特徴とする電源装置。 - 電力変換を行うコンバータ部と、出力電圧を検出する出力電圧検出部と、前記コンバータ部の出力電圧の検出電圧と基準電圧との比較結果に応じて電源装置の出力電圧を設定電圧に近づける制御を行う出力電圧制御部と、外部から出力電圧に関する指令値を読み取る指令値読み取り手段と、を有し、前記コンバータ部の動作停止時にも、出力端子間に接続されている外部回路から前記出力端子間に電圧が印加される電源装置において、
前記出力電圧検出部により前記外部回路から印加される電圧を検出し、前記コンバータ部の動作開始時に、出力電圧が前記外部回路から印加される電圧と同値または近似値になるように出力電圧を設定する一時出力電圧設定手段と、
前記出力電圧が前記外部回路から印加される電圧と同値または近似値に達した後、出力電圧が外部からの指令値による電圧となるように出力電圧を設定する定常出力電圧設定手段と、を備えたことを特徴とする電源装置。 - 前記出力端子間の電圧を分圧する抵抗分圧回路を備え、
前記一時出力電圧設定手段および前記定常出力電圧設定手段は、前記抵抗分圧回路に重畳する電圧を切り替えることで出力電圧を設定する、請求項1または2に記載の電源装置。 - 前記一時出力電圧設定手段および前記定常出力電圧設定手段は、前記基準電圧を制御することで出力電圧を設定する、請求項1または2に記載の電源装置。
- 前記指令値読み取り手段、前記一時出力電圧設定手段および前記定常出力電圧設定手段はマイクロコントローラICで構成され、
前記出力電圧制御部はPWM制御ICで構成された、請求項1~4のいずれかに記載の電源装置。 - 前記指令値読み取り手段、前記一時出力電圧設定手段、前記定常出力電圧設定手段、および前記出力電圧制御部は単一のDSPで構成されている、請求項1~4のいずれかに記載の電源装置。
- 前記コンバータ部は、入力電源と出力電源との間に直列に接続されたインダクタ、オン時に前記インダクタへ励磁電流を通電する第1スイッチ素子、オン時に前記インダクタへ還流電流を通電する第2スイッチ素子を備えた降圧型コンバータである、請求項1~6のいずれかに記載の電源装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016504144A JP6350645B2 (ja) | 2014-02-21 | 2015-02-19 | 電源装置 |
EP15752093.3A EP3109989B1 (en) | 2014-02-21 | 2015-02-19 | Power supply device |
CN201580006042.9A CN105940598B (zh) | 2014-02-21 | 2015-02-19 | 电源装置 |
US15/235,292 US10128665B2 (en) | 2014-02-21 | 2016-08-12 | Power supply apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014031992 | 2014-02-21 | ||
JP2014-031992 | 2014-02-21 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/235,292 Continuation US10128665B2 (en) | 2014-02-21 | 2016-08-12 | Power supply apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015125844A1 true WO2015125844A1 (ja) | 2015-08-27 |
Family
ID=53878343
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2015/054532 WO2015125844A1 (ja) | 2014-02-21 | 2015-02-19 | 電源装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US10128665B2 (ja) |
EP (1) | EP3109989B1 (ja) |
JP (1) | JP6350645B2 (ja) |
CN (1) | CN105940598B (ja) |
WO (1) | WO2015125844A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7452590B2 (ja) | 2022-08-19 | 2024-03-19 | Tdk株式会社 | スイッチング電源システム |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1042550A (ja) * | 1996-07-18 | 1998-02-13 | Fuji Electric Co Ltd | 昇降圧チョッパの制御方法 |
JP2002142451A (ja) * | 2000-10-30 | 2002-05-17 | Toyota Industries Corp | Dc/dcコンバータ |
JP2007267582A (ja) * | 2006-02-28 | 2007-10-11 | Yaskawa Electric Corp | 昇降圧チョッパ装置とその駆動方法 |
JP2013027147A (ja) * | 2011-07-21 | 2013-02-04 | Denso Corp | 電力変換装置 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3323406B2 (ja) | 1996-10-07 | 2002-09-09 | 古河電池株式会社 | 直流電源装置 |
JP2006353032A (ja) | 2005-06-17 | 2006-12-28 | Toyota Motor Corp | 電圧変換装置 |
JP4379396B2 (ja) * | 2005-08-19 | 2009-12-09 | 株式会社デンソー | 昇降圧チョッパ式dc−dcコンバータ |
US7466115B2 (en) * | 2005-09-19 | 2008-12-16 | Texas Instruments Incorporated | Soft-start circuit and method for power-up of an amplifier circuit |
JP5261942B2 (ja) * | 2007-02-14 | 2013-08-14 | 株式会社リコー | 充電制御回路への電源供給を行う電源回路、その電源回路を備えた充電装置及び充電制御回路への電源供給方法 |
JP5241381B2 (ja) * | 2008-08-25 | 2013-07-17 | 株式会社日立製作所 | 電力受信装置 |
US20110115450A1 (en) * | 2009-11-19 | 2011-05-19 | Intersil Americas Inc. | System and method for controlling start up of a voltage regulator system with independent voltage regulation |
US9531270B2 (en) * | 2011-07-11 | 2016-12-27 | Taiwan Semiconductor Manufacturing Company, Ltd. | Power management circuit and method |
JP2013042595A (ja) * | 2011-08-16 | 2013-02-28 | Oki Data Corp | 高圧電源装置及び画像形成装置 |
JP5439532B2 (ja) | 2012-03-29 | 2014-03-12 | 株式会社日立製作所 | 電子装置 |
-
2015
- 2015-02-19 WO PCT/JP2015/054532 patent/WO2015125844A1/ja active Application Filing
- 2015-02-19 EP EP15752093.3A patent/EP3109989B1/en active Active
- 2015-02-19 JP JP2016504144A patent/JP6350645B2/ja active Active
- 2015-02-19 CN CN201580006042.9A patent/CN105940598B/zh active Active
-
2016
- 2016-08-12 US US15/235,292 patent/US10128665B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1042550A (ja) * | 1996-07-18 | 1998-02-13 | Fuji Electric Co Ltd | 昇降圧チョッパの制御方法 |
JP2002142451A (ja) * | 2000-10-30 | 2002-05-17 | Toyota Industries Corp | Dc/dcコンバータ |
JP2007267582A (ja) * | 2006-02-28 | 2007-10-11 | Yaskawa Electric Corp | 昇降圧チョッパ装置とその駆動方法 |
JP2013027147A (ja) * | 2011-07-21 | 2013-02-04 | Denso Corp | 電力変換装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP3109989A4 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7452590B2 (ja) | 2022-08-19 | 2024-03-19 | Tdk株式会社 | スイッチング電源システム |
Also Published As
Publication number | Publication date |
---|---|
JP6350645B2 (ja) | 2018-07-04 |
CN105940598A (zh) | 2016-09-14 |
EP3109989B1 (en) | 2019-08-14 |
EP3109989A4 (en) | 2017-07-12 |
EP3109989A1 (en) | 2016-12-28 |
JPWO2015125844A1 (ja) | 2017-03-30 |
US20160352123A1 (en) | 2016-12-01 |
US10128665B2 (en) | 2018-11-13 |
CN105940598B (zh) | 2019-11-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4907275B2 (ja) | 電源装置及びその動作制御方法 | |
US8299773B2 (en) | System and method for limiting input-current surge in a switching mode power supply | |
JP4637694B2 (ja) | 力率補正回路及びその出力電圧制御方法 | |
US7688047B2 (en) | Power circuit and method of rising output voltage of power circuit | |
JP2012060714A (ja) | 集積回路 | |
JP2007288979A (ja) | 直流電源装置 | |
US10075061B2 (en) | Power supply device with excess current protection | |
EP3595154B1 (en) | Power conversion circuit having inrush current limiting resistor bypass | |
WO2019187544A1 (ja) | 力率改善回路及び半導体装置 | |
JP5228567B2 (ja) | 昇圧型dc−dcコンバータ | |
JP2011239630A (ja) | 電源回路 | |
KR102096171B1 (ko) | Dc-dc 컨버터용 소프트 스타트 장치 및 방법 | |
JP2005210809A (ja) | 電気機器の電源装置 | |
JP5254876B2 (ja) | 力率改善型スイッチング電源装置 | |
JP4820257B2 (ja) | 昇圧コンバータ | |
JP6350645B2 (ja) | 電源装置 | |
JP2015053777A (ja) | 電源制御装置 | |
US20080079315A1 (en) | Semiconductor integrated circuit and multi-output power supply apparatus using the same | |
JP2008289334A (ja) | スイッチング電源装置および電源制御方法 | |
JPH09294368A (ja) | 電源回路 | |
JP6482182B2 (ja) | 制御回路およびスイッチング電源 | |
JP2005269838A (ja) | Dc−dcコンバータ | |
JP6556909B2 (ja) | 制御回路およびスイッチング電源 | |
JP5701074B2 (ja) | 電源装置 | |
JP2006340471A (ja) | 電源保護装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 15752093 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2016504144 Country of ref document: JP Kind code of ref document: A |
|
REEP | Request for entry into the european phase |
Ref document number: 2015752093 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2015752093 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |