CN102739047B - Integrated control circuit of starting and shutdown setting and output compensation and operation method thereof - Google Patents
Integrated control circuit of starting and shutdown setting and output compensation and operation method thereof Download PDFInfo
- Publication number
- CN102739047B CN102739047B CN201110091900.8A CN201110091900A CN102739047B CN 102739047 B CN102739047 B CN 102739047B CN 201110091900 A CN201110091900 A CN 201110091900A CN 102739047 B CN102739047 B CN 102739047B
- Authority
- CN
- China
- Prior art keywords
- resistance
- unit
- voltage
- pin position
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
Abstract
The invention provides an integrated control circuit of starting and shutdown setting and output compensation and an operation method thereof. The integrated control circuit is operated in a power supply. The integrated control circuit comprises a control unit and a voltage regulating unit. The control unit inputs or outputs drive current through a control pin. The voltage regulating unit is electrically connected with a direct current input voltage terminal of the power supply and the control unit, receives direct current input voltage and the drive current, and generates a composite voltage by adjusting branch voltage of the direct current input voltage and voltage generated by the drive current. Therefore, the composite voltage is adjusted so as to provide power compensation of the power supply in different output power operations and to maintain starting and shutdown voltage setting of the power supply.
Description
Technical field
The present invention relates to a kind of switching on and shutting down and set integration control circuit and the method for operation thereof with output compensation, relate in particular to a kind of switching on and shutting down voltage operating in power supply unit and set integration control circuit and the method for operation thereof with output power back off.
Background technology
Power supply unit is to provide stable output voltage and the electric current of adjusting.And; in order to deal with country variant, area, general electric and lighting apparatus is had to different rated voltage regulations; to meet the consideration of safety (safety); power supply unit should possess overpower protection function; to guarantee between the misoperation emergence periods such as overload, short circuit and feedback open circuit; by limiting power output or the power supply unit of further stopping using, to reach protection power source supply itself and power-supply system end.
In addition, in order to take precautions against the situation of electric voltage exception situation as low in voltage (brown out), occur, to guarantee that power supply unit operates within the scope of normal AC-input voltage, therefore, the switching on and shutting down voltage of power supply unit is set also especially important.
Yet in the prior art, overpower protection compensation is set and normally utilized the different pin position of integrated circuit (IC) chip to reach its function from switching on and shutting down voltage, therefore, the integrated circuit (IC) chip few for pin number will cause the function that can provide relatively to reduce.And, if overpower protection compensation and switching on and shutting down voltage will be set and utilized same pin position to realize, cannot reach in the overpower protection compensation of high-low pressure simultaneously, also can maintain the fixing of switching on and shutting down voltage; Again or, after maintaining switching on and shutting down voltage fixing, cannot provide again the overpower protection compensation of high-low pressure.
Summary of the invention
The integration control circuit and the method for operation thereof that the object of the present invention is to provide a kind of switching on and shutting down setting and output to compensate, so that the power back-off of power supply unit under different output power operation to be provided, and maintain the switching on and shutting down voltage setting of power supply unit.
In order to reach the problems referred to above, the invention provides a kind of switching on and shutting down and set the integration control circuit compensating with output, operate in power supply unit.Integrate control circuit and comprise control unit and voltage-adjusting unit.
Control unit has control pin position, and drive current is exported or inputted to control unit by control pin position.Voltage-adjusting unit is electrically connected DC input voitage end and the control unit of power supply unit, and receives DC input voitage and drive current, utilizes and adjusts the dividing potential drop of DC input voitage and the voltage that drive current produces, to produce composite voltage.
By this, adjust composite voltage, so that the power back-off of power supply unit under different output power operation to be provided, and maintain the switching on and shutting down voltage setting of power supply unit.
In order to reach the problems referred to above, the present invention also provides a kind of switching on and shutting down to set the method for operation of integrating control circuit with output compensation, operates in power supply unit.The method of operation of integrating control circuit comprises the following step: first, provide control unit to comprise control pin position, and drive current is exported or inputted to control unit by control pin position.Then, provide voltage-adjusting unit, to receive DC input voitage and drive current; Then, adjust the dividing potential drop of DC input voitage and the voltage that drive current produces, to produce composite voltage.Finally, adjust composite voltage, so that the power back-off of power supply unit under different output power operation to be provided, and maintain the switching on and shutting down voltage setting of power supply unit.
Below in conjunction with the drawings and specific embodiments, describe the present invention, but not as a limitation of the invention.
Accompanying drawing explanation
The circuit diagram of the integration control circuit of Figure 1A switching on and shutting down voltage setting of the present invention and output power back off;
The circuit diagram of another embodiment of integration control circuit of Figure 1B switching on and shutting down voltage setting of the present invention and output power back off;
Fig. 2 switching on and shutting down voltage of the present invention is set the circuit diagram that operates in power supply unit with the integration control circuit of output power back off;
Fig. 3 is the import and export change in voltage curve chart of switching on and shutting down voltage setting of the present invention and output power back off; And
Fig. 4 is that switching on and shutting down voltage of the present invention is set the flow chart of integrating control circuit with output power back off.
Wherein, Reference numeral
10 control units
102 control pin positions
20 voltage-adjusting units
R1 the first resistance unit
R2 the second resistance unit
Vb DC input voitage
Vp pin position voltage
Vr resistance cross-pressure
Vc composite voltage
Id drive current
Qs power switch
Rs detects resistance
Vx internal source voltage
Rx internal resistance
S100～S400 step
Embodiment
Hereby, about the technical content and a detailed description, coordinate accompanying drawing to be described as follows:
Refer to the circuit diagram of the integration control circuit of Figure 1A switching on and shutting down voltage setting of the present invention and output power back off.This integration control circuit operates in a power supply unit, and this integration control circuit comprises a control unit 10 and a voltage-adjusting unit 20.
This control unit 10 has a control pin position 102, and this control unit 10 is by this control pin position 102 drive current Id that flows through.Wherein, this drive current Id can be a pull-up current (sourcing current), and this pull-up current Id is inner by outwards flowing out this control pin position 102 by this control unit 10, that is this control unit 10 is by this control pin position 102 this pull-up current of output Id; In addition, this drive current Id can be a sinking electric current (sinking current), and this sinking electric current I d is inwardly flow to by this control pin position 102 by these control unit 10 outsides, that is this control unit 10 is by this control pin position 102 this sinking electric current I of input d.In the present embodiment, this drive current Id be take this pull-up current as example explanation, that is this drive current Id is inner by outwards flowing out this control pin position 102 by this control unit 10.In addition refer to, the circuit diagram of another embodiment of integration control circuit of Figure 1B switching on and shutting down voltage setting of the present invention and output power back off.Wherein, this drive current Id also can be produced by the inner fixed voltage source Vx of this control unit 10 1 and an internal resistance Rx.Therefore,, directly by integrated circuit (IC) chip (this control unit 10) inner obtained voltage source and resistance, can reach equally the effect that produces this drive current Id.
This voltage-adjusting unit 20 is to be electrically connected this power supply unit rectification and a filtered direct current Input voltage terminal (not indicating) and this control unit 10, and receive this drive current Id that a DC input voitage Vb and this control unit 10 are exported, utilize and adjust the dividing potential drop Vp of this DC input voitage Vb and the voltage Vr that this drive current Id produces, to produce a composite voltage Vc.Wherein, this DC input voitage Vb is that the external communication input voltage (referring to Fig. 2) receiving by rectification and this power supply unit of filtering obtains.This voltage-adjusting unit 20 is to comprise one first resistance unit R1 and one second resistance unit R2.This first resistance unit R1 has one first end points (not indicating) and one second end points (not indicating).This first end points is this DC input voitage end that is electrically connected this power supply unit, and this second end points is this control pin position 102 that is electrically connected this control unit 10.This second resistance unit R2 has one the 3rd end points (not indicating) and one the 4th end points (not indicating).The 3rd end points is that these control pin position 102, the four end points of this control unit 10 of electric connection are ground connection.
By Figure 1A, can be found out, this the first resistance unit R1 and this second resistance unit R2 are for being connected in series framework, can carry out dividing potential drop to this power supply unit rectification and filtered this DC input voitage Vb, to produce a pin position voltage Vp (that is, Vp=Vb * R2/ (R1+R2)).And this drive current Id that export this control pin position 102 of this control unit 10 this second resistance unit R2 that flows through, to produce a resistance cross-pressure Vr (that is, Vr=Id * (R1/ (R1+R2)) * R2).But much larger than this second resistance unit R2, therefore, this resistance cross-pressure Vr acquired results can be close in Vr=Id * R2, therefore this resistance cross-pressure Vr will be with Vr=Id * R2 explanation as follows because of this first resistance unit R1.Therefore, according to overlapping theorem (superposition principle) can try to achieve this composite voltage Vc be for this pin position voltage Vp and this resistance cross-pressure Vr and (that is, Vc=Vp+Vr).
Circuit structure and operating principle that the present invention integrates control circuit can be illustrated and be understood fully by following examples, make those skilled in the art to complete according to this it.Yet the enforcement of this case not can be restricted to by the following example its accurate kenel of implementing.In the present embodiment, will explain to there is the encapsulated integrated circuit chip of 6 pin positions.Refer to Fig. 2 switching on and shutting down voltage of the present invention and set the circuit diagram that operates in power supply unit with the integration control circuit of output power back off.
The input side of this power supply unit is to comprise a bridge rectifier 30, a filter capacitor 40, comprises in addition a direction flyback converter (flyback converter) 50, and, also comprise this control unit 10 and this voltage-adjusting unit 20.This power supply unit is to receive an external ac power source input voltage vin, and this AC power input voltage vin is by this bridge rectifier 30, to carry out rectification with this filter capacitor 40 respectively and filtering is processed, and obtains this DC input voitage Vb.As previously mentioned, this voltage-adjusting unit 20 is these filter capacitors 40 that are electrically connected in parallel, to receive this DC input voitage Vb after rectification and filtering are processed.And this control pin position 102 of this control unit 10 is to be electrically connected this voltage-adjusting unit 20.Take the present embodiment as example, this voltage-adjusting unit 20 is to comprise this first resistance unit R1 and this second resistance unit R2, and, this the first resistance unit R1 and this second resistance unit R2 are for being connected in series framework, therefore, this control pin position 102 of this control unit 10 is to be electrically connected this first resistance unit R1 and this second resistance unit R2.Utilize the resistance series connection framework of this voltage-adjusting unit 20, can be to provide dividing potential drop adjustment to this DC input voitage Vb, to produce this pin position voltage Vp (that is, Vp=Vb * R2/ (R1+R2)).
In addition, this control unit 10 is to have this control pin position 102, and this control pin position 102 this drive current of output Id of this control unit 10 are with this second resistance unit R2 that flows through, to produce this resistance cross-pressure Vr (that is, Vr=Id * R2).
Therefore, this pin position voltage Vp and this resistance cross-pressure Vr that utilize this control unit 10 and this voltage-adjusting unit 20 to produce, can be to produce this composite voltage Vc according to overlapping theorem (superposition principle).
By this, utilize the adjustment of this composite voltage Vc, so that the power back-off of this power supply unit under different output power operation to be provided, and maintain the switching on and shutting down voltage setting of this power supply unit.
As for the switching on and shutting down voltage setting of this power supply unit and the operating instruction of output power back off, by further division explanation.
Aspect the switching on and shutting down voltage setting of this power supply unit: when this AC power input voltage vin is when driving this control unit 10, just conducting and start this control unit 10 of the power control circuit of these control unit 10 inside (not icon).Now, this control unit 10 continues to monitor this composite voltage Vc.By this composite voltage of direct-detection Vc, also reach and judge whether this AC power input voltage vin reaches the requirement of switching on and shutting down voltage (brown-in voltage).If this AC power input voltage vin reaches the requirement of switching on and shutting down voltage, this power supply unit normal running; If not 10 of this control units no longer drive a power switch Qs of this direction flyback converter 50, make this direction flyback converter 50 stop power output to output.By this, can provide this power supply unit to operate within the scope of normal this AC power input voltage vin.
In addition, aspect the output power back off of this power supply unit: utilize this power switch Qs and to detect resistance R s and be connected in series, by this, detect resistance R s to obtain the electric current that flows through this power switch Qs, and, the power output of this power supply unit according to this electric current, can be determined.Also therefore, provide this power supply unit in overpower protection, by output power back off Functional Design, using and as this power supply unit, under high and low input voltage, have identical overpower protection operating point.
Referring to Fig. 3 is the import and export change in voltage curve chart of switching on and shutting down voltage setting of the present invention and output power back off.As shown in the figure, abscissa represents this external power source input voltage vin; Ordinate represents this composite voltage Vc.According to aforesaid circuit framework, parameter designing with two groups of these the first resistance unit R1 and this second resistance unit R2, and coordinate this drive current Id (take pull-up current as example), further illustrate switching on and shutting down voltage (brown-in voltage) and set:
Suppose that switching on and shutting down voltage is set as external power source input voltage vin for exchanging 70 volts, therefore, after this bridge rectifier 30 and this filter capacitor 40 carry out rectification and filtering processing, can obtain this DC input voitage Vb and be about 100 volts of direct currents, so:
If 1 to design this first resistance unit R1 be that 20M Ω, this second resistance unit R2 are 100K Ω, and this drive current Id is 5 μ A, therefore, this pin position voltage Vp can be calculated as Vb * R2/ (R1+R2)=100 * 100K Ω/0.5 volt of (20M Ω+100K Ω) ≈ by dividing potential drop; And this resistance cross-pressure Vr of this second resistance unit R2 can be calculated as Id * R2=5 μ A * 100K Ω=0.5 volt by this drive current Id.Therefore, this composite voltage Vc is this resistance cross-pressure Vr sum of this pin position voltage Vp and this second resistance unit R2, is 1 volt.
In addition, user can be take and be maintained switching on and shutting down voltage as 100 volts of direct currents (that is this external power source input voltage vin is as exchanging 70 volts) by design different this first resistance unit R1 and this second resistance unit R2, as described below:
If 2 to design this first resistance unit R1 be that 6.6M Ω, this second resistance unit R2 are 50K Ω, and this drive current Id is 5 μ A, therefore, this pin position voltage Vp can be calculated as Vb * R2/ (R1+R2)=100 * 50K Ω/0.75 volt of (6.6M Ω+50K Ω) ≈ by dividing potential drop; And this resistance cross-pressure Vr of this second resistance unit R2 can be calculated as Id * R2=5 μ A * 50K Ω=0.25 volt by this drive current Id.Therefore, this composite voltage Vc is this resistance cross-pressure Vr sum of this pin position voltage Vp and this second resistance unit R2, is 1 volt.
So, utilize and flexibly design this first resistance unit R1 and this second resistance unit R2, and coordinate this drive current Id, and can reach the dynamo-electric design (fixed brown-in voltage) of pressing of floatless switch, the present embodiment of take is fixed this composite voltage as 1 volt as example is.
In addition, with the parameter designing of above-mentioned two groups of these the first resistance unit R1 and this second resistance unit R2, and coordinate this drive current Id, further illustrate overpower protection (over power protection, OPP) Compensation Design:
If 1 to design this first resistance unit R1 be that 20M Ω, this second resistance unit R2 are 100K Ω, and this drive current Id is 5 μ A, therefore, when this external power source input voltage vin increases to 110 volts of interchanges when (that is this DC input voitage Vb is about 155 volts after conversion), this pin position voltage Vp can be calculated as Vb * R2/ (R1+R2)=155 * 100K Ω/0.77 volt of (20M Ω+100K Ω) ≈ by dividing potential drop; And this resistance cross-pressure Vr of this second resistance unit R2 can be calculated as Id * R2=5 μ A * 100K Ω=0.5 volt by this drive current Id.Therefore, this composite voltage Vc be this pin position voltage Vp and this second resistance unit R2 this resistance cross-pressure Vr and, be 1.27 volts.
In addition, if when this external power source input voltage vin increases to 230 volts of interchanges when (that is this DC input voitage Vb is about 325 volts after conversion), this pin position voltage Vp can be calculated as Vb * R2/ (R1+R2)=325 * 100K Ω/1.62 volts of (20M Ω+100K Ω) ≈ by dividing potential drop; And this resistance cross-pressure Vr of this second resistance unit R2 can be calculated as Id * R2=5 μ A * 100K Ω=0.5 volt by this drive current Id.Therefore, this composite voltage Vc is this resistance cross-pressure Vr sum of this pin position voltage Vp and this second resistance unit R2, is 2.12 volts.
So; design with this understanding this first resistance unit R1 and this second resistance unit R2; and coordinate this drive current Id; can by exchanging 110 volts, be increased to while exchanging 230 volts when this external power source input voltage vin; can provide the cancellation ratio of voltage to be: 2.12 volts/1.27 volts=1.67 times; therefore,, by output power back off Functional Design, using and as this power supply unit, under high and low input voltage, have identical overpower protection operating point.Be worth mentioning, can realize with this understanding and set this external power source input voltage vin when switching on and shutting down voltage is that while exchanging 70 volts, it is 1 volt that this composite voltage Vc is maintained.
In addition; user can be by design different this first resistance unit R1 and this second resistance unit R2; can be according to the different change in voltage of this external power source input voltage vin, so that the compensation (that is overpower protection compensation is provided) of voltage to be provided, as described below:
If 2 to design this first resistance unit R1 be that 6.6M Ω, this second resistance unit R2 are 50K Ω, and this drive current Id is 5 μ A, therefore, when this external power source input voltage vin increases to 110 volts of interchanges when (that is this DC input voitage Vb is about 155 volts after conversion), this pin position voltage Vp can be calculated as Vb * R2/ (R1+R2)=155 * 50K Ω/1.17 volts of (6.6M Ω+50K Ω) ≈ by dividing potential drop; And this resistance cross-pressure Vr of this second resistance unit R2 can be calculated as Id * R2=5 μ A * 50K Ω=0.25 volt by this drive current Id.Therefore, this composite voltage Vc is this resistance cross-pressure Vr sum of this pin position voltage Vr and this second resistance unit R2, is 1.42 volts.
In addition, if when this external power source input voltage vin increases to 230 volts of interchanges when (that is this DC input voitage Vb is about 325 volts after conversion), this pin position voltage Vp can be calculated as Vb * R2/ (R1+R2)=325 * 50K Ω/2.44 volts of (6.6M Ω+50K Ω) ≈ by dividing potential drop; And this resistance cross-pressure Vr of this second resistance unit R2 can be calculated as Id * R2=5 μ A * 50K Ω=0.25 volt by this drive current Id.Therefore, this composite voltage Vc is this resistance cross-pressure Vr sum of this pin position voltage Vp and this second resistance unit R2, is 2.69 volts.
So, design with this understanding this first resistance unit R1 and this second resistance unit R2, and coordinate this drive current Id, can by exchanging 110 volts, be increased to while exchanging 230 volts when this external power source input voltage vin, can provide the cancellation ratio of voltage to be: 2.69 volts/1.42 volts=1.89 times, compare the condition of original 1.67 times, can effectively calculate output power back off is the mode that can propose by this patent, adjusts.Therefore,, by output power back off Functional Design, using and as this power supply unit, under high and low input voltage, have identical overpower protection operating point.Be worth mentioning, can realize with this understanding and set this external power source input voltage vin when switching on and shutting down voltage is that while exchanging 70 volts, it is 1 volt that this composite voltage Vc is maintained, and is not subject to above-mentioned power back-off and change to some extent.
According to the above description; this the first resistance unit R1 and this second resistance unit R2 that integration control circuit with output power back off can utilize this drive current Id that this control unit 10 flows through and this voltage-adjusting unit 20 to provide is provided for this switching on and shutting down voltage; can design fixing switching on and shutting down voltage; and according to the variation of the different voltages of this external power source input voltage vin, provide the overpower protection compensation of high-low pressure.And; by the switching on and shutting down voltage shown in Fig. 3, set with the import and export change in voltage curve chart of output power back off and find out; can be by the parameter designing of this first resistance unit R1 and this second resistance unit R2; and coordinate this drive current Id; can more flexibly design the curve of other Different Slope; to realize when maintaining switching on and shutting down voltage fixing, can provide again the Compensation Design of the power protection under different change in voltage.
In addition, referring to Fig. 4 is that switching on and shutting down voltage of the present invention is set the flow chart of integrating control circuit with output power back off.This switching on and shutting down voltage is set the method for operation of integrating control circuit with output power back off, is to operate in a power supply unit; The method of operation of this integration control circuit comprises the following step.First, provide a control unit, comprise a control pin position, and this control unit is by this control pin position output or input one drive current (S100).Wherein this control unit is to be an integrated circuit (IC) chip.This drive current of flowing through in this control pin position is to be a sinking electric current (sinking current), and, this pull-up current is outwards to be flowed out by this control pin position by this control unit inside, that is this control unit is to export this pull-up current by this control pin position; In addition, this drive current is to can be a sinking electric current (sinking current), and this sinking electric current is inwardly to be flow to by this control pin position by this control unit outside, that is this control unit is to input this sinking electric current by this control pin position.In addition, this drive current also can be produced by the inner fixed voltage source of this control unit one and an internal resistance.
Then, provide a voltage-adjusting unit, to receive a DC input voitage and this drive current (S200).Wherein, this DC input voitage is that the external communication input voltage receiving by rectification and this power supply unit of filtering obtains.This voltage-adjusting unit is to comprise one first resistance unit and one second resistance unit.This one first resistance unit is to have one first end points and one second end points, and this first end points is to be electrically connected this power supply unit rectification and filtered this DC input voitage end, and this second end points is this control pin position that is electrically connected this control unit.This second resistance unit is to have one the 3rd end points and one the 4th end points, and the 3rd end points is this control pin position that is electrically connected this control unit, and the 4th end points is ground connection.
Then, adjust the dividing potential drop of this DC input voitage and the voltage that this drive current produces, to produce a composite voltage (S300).Because this first resistance unit and this second resistance unit are for being connected in series framework, can carry out dividing potential drop to this power supply unit rectification and filtered DC input voitage, to produce a pin position voltage; And, this drive current that this control unit is exported by this control pin position this second resistance unit of flowing through, to produce a resistance cross-pressure, therefore, this composite voltage is to be this pin position voltage and this resistance cross-pressure sum.Wherein, this pin position voltage swing is to be the product of this DC input voitage size and this second resistance unit resistance, then removes in this first resistance unit resistance and this second resistance unit resistance sum.And this resistance cross-pressure size is to be the product of this drive current size with this second resistance unit resistance.
Finally, adjust this composite voltage, so that the power back-off of this power supply unit under different output power operation to be provided, and maintain the switching on and shutting down voltage setting (S400) of this power supply unit.So, utilize the different resistances of this first resistance unit of design and this second resistance unit, and coordinate this drive current, so that the switching on and shutting down voltage setting of this power supply unit to be provided.Meanwhile, design the different resistances of this first resistance unit and this second resistance unit, and coordinate this drive current, so that the overpower protection compensation of this power supply unit to be provided.
Comprehensive the above, the present invention has advantages of following:
1, can on single pin position, provide the integration function that has the setting of switching on and shutting down voltage and output power back off concurrently, therefore, be conducive to the application of the integrated circuit (IC) chip that pin number is few;
2, can provide the adjustment of switching on and shutting down voltage setting with output power back off simultaneously, reach and there is the function that adaptability is integrated control; And
3, can utilize the adjustment of composite voltage, so that the power back-off of power supply unit under different output power operation to be provided, and maintain the switching on and shutting down voltage setting of this power supply unit.
Certainly; the present invention also can have other various embodiments; in the situation that not deviating from spirit of the present invention and essence thereof; those of ordinary skill in the art are when making according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (16)
1. the integration control circuit compensating with output is set in switching on and shutting down, operates in a power supply unit; It is characterized in that, this integration control circuit comprises:
One control unit, has a control pin position, and this control unit is by this control pin position output or input one drive current;
One voltage-adjusting unit, one second resistance unit that comprises one first resistance unit and connect with this first resistance unit, this voltage-adjusting unit is electrically connected a direct current Input voltage terminal and this control unit of this power supply unit, and receives a DC input voitage and this drive current;
Wherein, the resistance of adjusting this first resistance unit and this second resistance unit to this DC input voitage dividing potential drop so that a pin position voltage to be provided, and this drive current is flowed through this second resistance unit so that a resistance cross-pressure to be provided, and wherein the totalling of this pin position voltage and this resistance cross-pressure produces a composite voltage;
By this, by adjusting this first resistance unit with this second resistance unit and coordinating this drive current, can be under identical this DC input voitage, obtain a plurality of different composite voltage, so that a plurality of different voltage compensation quantities to be provided, so, to this power supply unit, in different output power operation, provide power back-off, and maintain the switching on and shutting down voltage setting of fixing this power supply unit.
2. the integration control circuit compensating with output is set in switching on and shutting down according to claim 1, it is characterized in that, this voltage-adjusting unit comprises:
This first resistance unit, has one first end points and one second end points, and this first end points is electrically connected this DC input voitage end of this power supply unit, and this second end points is electrically connected this control pin position of this control unit;
This second resistance unit, has one the 3rd end points and one the 4th end points, and the 3rd end points is electrically connected this control pin position of this control unit, the 4th end points ground connection.
3. the integration control circuit compensating with output is set in switching on and shutting down according to claim 1, it is characterized in that, this drive current of flowing through in this control pin position is a pull-up current.
4. the integration control circuit compensating with output is set in switching on and shutting down according to claim 1, it is characterized in that, this drive current of flowing through in this control pin position is a sinking electric current.
5. the integration control circuit compensating with output is set in switching on and shutting down according to claim 1, it is characterized in that, this drive current of flowing through in this control pin position is produced by the inner fixed voltage source of this control unit one and an internal resistance.
6. the integration control circuit compensating with output is set in switching on and shutting down according to claim 2, it is characterized in that, this pin position voltage swing is the product of this DC input voitage size and this second resistance unit resistance, then removes in this first resistance unit resistance and this second resistance unit resistance sum.
7. switching on and shutting down setting according to claim 2 and the integration control circuit that output compensates, is characterized in that, this resistance cross-pressure size is the product of this drive current size and this second resistance unit resistance.
8. the integration control circuit compensating with output is set in switching on and shutting down according to claim 1, it is characterized in that, this control unit is an integrated circuit (IC) chip.
9. a method of operation of integrating control circuit with output compensation is set in switching on and shutting down, operates in a power supply unit; It is characterized in that, this integration control circuit comprises a control unit with a control pin position, and has one first resistance unit and a voltage-adjusting unit of one second resistance unit of connecting with this first resistance unit; This method of operation comprises the following step:
(a) by this control pin position, export or input a drive current to this control unit;
(b) this voltage-adjusting unit, receives a DC input voitage and this drive current;
(c) resistance of adjusting this first resistance unit and this second resistance unit is to this DC input voitage dividing potential drop, so that a pin position voltage to be provided, and this drive current is flowed through this second resistance so that a resistance cross-pressure to be provided, and wherein the totalling of this pin position voltage and this resistance cross-pressure produces a composite voltage; And
(d) by adjusting this first resistance unit with this second resistance unit and coordinating this drive current, can be under identical this DC input voitage, obtain a plurality of different composite voltage, so that a plurality of different voltage compensation quantities to be provided, so, provide this power supply unit to provide power back-off in different output power operation, and maintain the switching on and shutting down voltage setting of fixing this power supply unit.
10. the method for operation of integrating control circuit with output compensation is set in switching on and shutting down according to claim 9, it is characterized in that, this voltage-adjusting unit comprises:
This first resistance unit, has one first end points and one second end points, and this first end points is electrically connected this power supply unit rectification and filtered this DC input voitage end, and this second end points is electrically connected this control pin position of this control unit;
This second resistance unit, has one the 3rd end points and one the 4th end points, and the 3rd end points is electrically connected this control pin position of this control unit, the 4th end points ground connection.
The method of operation of integrating control circuit with output compensation is set in 11. switching on and shutting down according to claim 9, it is characterized in that, this drive current of flowing through in this control pin position is a pull-up current.
The method of operation of integrating control circuit with output compensation is set in 12. switching on and shutting down according to claim 9, it is characterized in that, this drive current of flowing through in this control pin position is a sinking electric current.
The method of operation of integrating control circuit with output compensation is set in 13. switching on and shutting down according to claim 9, it is characterized in that, this drive current of flowing through in this control pin position is produced by the inner fixed voltage source of this control unit one and an internal resistance.
The method of operation of integrating control circuit with output compensation is set in 14. switching on and shutting down according to claim 10, it is characterized in that, this pin position voltage swing is the product of this DC input voitage size and this second resistance unit resistance, then removes in this first resistance unit resistance and this second resistance unit resistance sum.
15. switching on and shutting down according to claim 10 are set and output compensates the method for operation of integrating control circuit, it is characterized in that, this resistance cross-pressure size is the product of this drive current size and this second resistance unit resistance.
The method of operation of integrating control circuit with output compensation is set in 16. switching on and shutting down according to claim 9, it is characterized in that, this control unit is an integrated circuit (IC) chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110091900.8A CN102739047B (en) | 2011-04-13 | 2011-04-13 | Integrated control circuit of starting and shutdown setting and output compensation and operation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110091900.8A CN102739047B (en) | 2011-04-13 | 2011-04-13 | Integrated control circuit of starting and shutdown setting and output compensation and operation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102739047A CN102739047A (en) | 2012-10-17 |
| CN102739047B true CN102739047B (en) | 2014-08-13 |
Family
ID=46993997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110091900.8A Expired - Fee Related CN102739047B (en) | 2011-04-13 | 2011-04-13 | Integrated control circuit of starting and shutdown setting and output compensation and operation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102739047B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6281658B1 (en) * | 1999-01-08 | 2001-08-28 | Lg Electronics Inc. | Power factor compensation device for motor driving inverter system |
| DE102004025597A1 (en) * | 2004-05-25 | 2005-12-22 | Tridonicatco Gmbh & Co. Kg | Power Factor Correction Method and Circuit (PFC) |
| CN1964172A (en) * | 2005-11-09 | 2007-05-16 | 崇贸科技股份有限公司 | A switch-over type control device for output power compensation |
| DE102009047984A1 (en) * | 2009-10-01 | 2011-04-07 | Tridonic Gmbh & Co Kg | Method and circuit for power factor correction |
-
2011
- 2011-04-13 CN CN201110091900.8A patent/CN102739047B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6281658B1 (en) * | 1999-01-08 | 2001-08-28 | Lg Electronics Inc. | Power factor compensation device for motor driving inverter system |
| DE102004025597A1 (en) * | 2004-05-25 | 2005-12-22 | Tridonicatco Gmbh & Co. Kg | Power Factor Correction Method and Circuit (PFC) |
| CN1964172A (en) * | 2005-11-09 | 2007-05-16 | 崇贸科技股份有限公司 | A switch-over type control device for output power compensation |
| DE102009047984A1 (en) * | 2009-10-01 | 2011-04-07 | Tridonic Gmbh & Co Kg | Method and circuit for power factor correction |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102739047A (en) | 2012-10-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102598578B (en) | Power shutdown charge controller | |
| US9276498B2 (en) | Photovoltaic power generation system | |
| CN102570434A (en) | Power converter | |
| US11545846B2 (en) | Power supplying system and method | |
| US10171074B2 (en) | Electronic system | |
| CN106533154A (en) | Load transient and jitter of improved dc-dc converter | |
| US20120299563A1 (en) | Power converter and control method using the same | |
| KR20130009411A (en) | Device and method for charging a master device using a detachable device | |
| CN103023323B (en) | Average inductive current type voltage control method and variable reference voltage generating device used by method | |
| CN106026700B (en) | The controller and its operating method of power adapter | |
| CN116582005B (en) | Electric energy conversion circuit, electric energy conversion method and electric energy conversion equipment | |
| CN102739047B (en) | Integrated control circuit of starting and shutdown setting and output compensation and operation method thereof | |
| CN207282130U (en) | A kind of OLED screen curtain grey menu water ripples suppress and removal device | |
| CN103427619B (en) | The PFC control circuit that can boost flexibly and control method thereof | |
| CN202798460U (en) | Paralleled current sharing line for voltage converter | |
| CN107358919A (en) | A kind of OLED screen curtain grey menu water ripples suppress and removal device | |
| CN109765960B (en) | Maximum power tracking power generation device and system | |
| US8994468B2 (en) | Modulation method and control device having the same | |
| CN104956576B (en) | DC DC converters | |
| CN108263240B (en) | Vehicle-mounted charging device of electric automobile and charging method thereof | |
| CN105763028A (en) | Constant-current to constant-voltage converter and constant-current to constant-voltage device | |
| CN103117654B (en) | Active power-factor correction circuit and related controller | |
| CN206673849U (en) | The high-performance electric source module that nuclear power station reactor core Nuclear measurement system uses | |
| CN103812328A (en) | Parallel-connection current-sharing circuit for voltage converter | |
| CN104702092A (en) | Power-factor correction circuit of power converter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160425 Address after: Taiwan Hsinchu County Tai Yuan Street Chinese jhubei City, No. 30 2 floor 3 Patentee after: Power Forest Technology Corp. Address before: Hsinchu County, Taiwan, China Patentee before: NeoEnergy Microelectronics, Inc. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |