CN208581166U - Staggered-parallel-type switching power source control circuit - Google Patents
Staggered-parallel-type switching power source control circuit Download PDFInfo
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- CN208581166U CN208581166U CN201821062266.9U CN201821062266U CN208581166U CN 208581166 U CN208581166 U CN 208581166U CN 201821062266 U CN201821062266 U CN 201821062266U CN 208581166 U CN208581166 U CN 208581166U
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Abstract
The utility model proposes a kind of staggered-parallel-type switching power source control circuits, the parallel Switching Power Supply of alternating expression includes main switch circuit and from switching circuit, the control circuit includes the first amplifier, its first input end receives feedback voltage, its second input terminal receives the first reference voltage, the first amplifier outputting reference signal, the reference signal is for controlling the upper limit value of inductive current in main switch circuit, lower limit value and the upper limit value of inductive current, lower limit value from switching circuit；The control circuit adjusts the inductive current bound difference from switching circuit, so that main switch circuit and the phase difference from switching circuit reach expected phase difference according to main switch circuit and from the phase difference of switching circuit.The utility model can adjust main switch circuit and the phase difference from switching circuit, and dynamic response is preferable.
Description
Technical field
The utility model relates to electronic technology fields, in particular to staggered-parallel-type switching power source control circuit.
Background technique
Compared to traditional buck circuit, using the two-way buck circuit of crisscross parallel, as shown in Figure 1, each road buck circuit
The output power of half need to only be undertaken, the electric current born on inductance L1, L2 and switching tube Q1, Q2 is also only traditional buck circuit
Half.In high frequency, output capacitance C00 can use the lesser ceramic condenser of equivalent resistance, make the output of the Switching Power Supply more
For stabilization, switch power supply system it is more efficient.
In the prior art, the two-way buck of crisscross parallel realize misphase conducting frequently with fixed-frequency control mode, depending on control frequently
Mode processed is limited to the response speed of loop, and dynamic response is poor.In the design of general Switching Power Supply, permanent conducting is generallyd use
Control mode is to obtain better dynamic response, but permanent conducting control mode is applied in staggered-parallel-type Switching Power Supply, it is difficult to
Realize that the phase difference of two-way buck circuit is adjusted.
Utility model content
Phase-adjusted staggered-parallel-type switching power source control circuit is realized the purpose of the utility model is to provide a kind of, is used
Dynamic response is poor when solving the problems, such as the conducting of existing Switching Power Supply misphase and the misphase angle of flow is difficult to adjust.
To achieve the above object, the utility model provides a kind of staggered-parallel-type switching power source control circuit, the friendship
The wrong parallel Switching Power Supply of formula includes main switch circuit and from switching circuit, and the switching power source control circuit includes the first fortune
It puts, first input end receives feedback voltage, and the second input terminal receives the first reference voltage, the first amplifier outputting reference
Signal, the reference signal is for controlling inductive current upper limit value, lower limit value and the inductance from switching circuit in main switch circuit
The upper limit value of electric current, lower limit value；
The control circuit adjusts the inductance electricity from switching circuit according to main switch circuit and from the phase difference of switching circuit
Bound difference is flowed, so that main switch circuit and the phase difference from switching circuit reach expected phase difference.
Optionally, the switching power source control circuit further includes main control circuit, and the main control circuit is according to the base
Calibration signal, the first difference signal obtain inductive current upper limit value and lower limit value in main switch circuit；The first difference signal table
Levy the difference of inductive current upper limit value and lower limit value in the main switch circuit；The reference signal is more than or equal to main switch circuit
Middle inductive current upper limit value, alternatively, the reference signal is less than or equal to inductive current lower limit value in main switch circuit, alternatively, institute
Reference signal is stated to be located in main switch circuit between inductive current upper limit value and lower limit value.
Optionally, the switching power source control circuit further includes from control circuit, when main switch circuit and from switching circuit
Phase difference when being greater than expected phase difference, it is described to reduce the inductive current bound difference from switching circuit from control circuit；When
It is described to increase from switching circuit from control circuit when main switch circuit and phase difference from switching circuit are less than expected phase difference
Inductive current bound difference.
Optionally, described that the electricity from switching circuit is obtained according to the reference signal, the second difference signal from control circuit
Inducing current upper limit value and lower limit value, the second difference signal characterization inductive current upper limit value and lower limit from switching circuit
The difference of value；The reference signal is more than or equal to the inductive current upper limit value from switching circuit, alternatively, the reference signal is less than
Equal to the inductive current lower limit value from switching circuit, alternatively, the reference signal is located at the inductive current upper limit from switching circuit
Between value and lower limit value；Second difference signal is adjusted according to main switch circuit and from the phase difference of switching circuit.
Optionally, described from control circuit further includes phase difference detecting circuit, and the phase difference detecting circuit receives first
Signal and second signal, output phase difference signal, the signal of main switch on-off, institute in the first characterization main switch circuit
State the signal of second signal characterization main switch on-off from switching circuit.
Optionally, when main switch is connected in the first characterization main switch circuit, the phase difference detecting circuit is defeated
Phase signal out；From switching circuit when main switch conducting, the phase signal level is overturn the second signal characterization.
Optionally, the phase difference detecting circuit includes pulse-generating circuit and trigger, and the pulse-generating circuit connects
The first signal and the second signal are received, the first pulse signal and the second pulse signal are exported；The trigger set end receives
First pulse signal, the trigger reset end receive second pulse signal, the trigger output signal conduct
The phase signal is used as after the phase signal or trigger output signal conversion.
Optionally, described from control circuit further includes that difference adjusts circuit, and the difference adjusts circuit receiving phase difference letter
Number, when phase difference is big than expected for main switch circuit and the phase difference from switching circuit, the first electric current of control is put to first capacitor
Electricity；When phase difference is small than expected for main switch circuit and the phase difference from switching circuit, the second electric current of control is filled to first capacitor
Electricity, to obtain adjusting voltage, the adjusting voltage adjusts second difference signal, and the adjusting voltage characterization described second is poor
Value signal variable quantity.
Optionally, it includes filter circuit and comparator that the difference, which adjusts circuit, and the filter circuit includes first resistor
With the second capacitor, the first resistor first end connects phase difference detecting circuit output end, and second end connects the second capacitor the
One end, the second capacitor second end are grounded, and voltage is first voltage on second capacitor, and the comparator first end receives
First voltage, second end receive the second reference voltage, and the comparator exports comparison signal, the second reference voltage characterization
It is expected that phase difference.
Optionally, it further includes the first current source, the second current source and the first capacitor that the difference, which adjusts circuit, described
When first voltage reaches second reference voltage, the comparison signal controls first current source conduction, exports described the
One electric current；When the first voltage is not up to second reference voltage, the comparison signal controls second current source and leads
It is logical, export second electric current.
Optionally, the staggered-parallel-type Switching Power Supply includes at least one from switching circuit, and the Switching Power Supply controls
Circuit adjusts any one or more from the phase difference of switching circuit and main switch circuit to expected phase difference.
Compared with prior art, the utility model has the advantage that the mistake according to the first reference voltage and feedback voltage
Difference obtains reference signal, and the reference signal is for controlling inductive current upper limit value in main switch circuit, lower limit value and from switch
Inductive current upper limit value, lower limit value in circuit；According to main switch circuit and from the phase difference of switching circuit, adjust from switching circuit
Middle inductive current bound difference, so that main switch circuit and the phase difference from switching circuit reach expected phase difference.This is practical
Novel adjustable main switch circuit and the phase difference from switching circuit, when misphase is connected, the utility model Switching Power Supply dynamic
Response is preferable.
Detailed description of the invention
Fig. 1 is the utility model staggered-parallel-type switching power circuit structure chart；
Fig. 2 is the utility model staggered-parallel-type switching power source control circuit schematic diagram；
Fig. 3 is the utility model main control circuit schematic diagram；
Fig. 4 is the utility model from control circuit schematic diagram；
Fig. 5 is that the utility model phase difference detecting circuit and difference adjust circuit diagram；
Fig. 6 is the waveform diagram of the utility model staggered-parallel-type switching power source control circuit；
Specific embodiment
It is described in detail below in conjunction with preferred embodiment of the attached drawing to the utility model, but the utility model is not merely
It is limited to these embodiments.The utility model covers any substitution made in the spirit and scope of the utility model, modification, equivalent
Method and scheme.
In order to make the public have thorough understanding to the utility model, in following the preferred embodiment in the utility model specifically
Concrete details is illustrated, and that this can also be understood completely is practical new for description without these details for a person skilled in the art
Type.
The utility model is more specifically described by way of example referring to attached drawing in the following passage.It should be noted that attached drawing
It is all made of more simplified form and uses non-accurate ratio, only to facilitate, lucidly aid in illustrating the utility model
The purpose of embodiment.
Fig. 1 illustrates the utility model staggered-parallel-type Switching Power Supply, including main switch circuit and from switching circuit, capacitor
C00 and divider resistance R1, R2, main switch circuit include the first main switch M1, the first auxiliary switch pipe M3 and the first inductance L1, from
Switching circuit includes the second main switch M2, the second auxiliary switch pipe M4 and the second inductance L2.The present embodiment only enumerates two staggeredly
Switching circuit in parallel is illustrated, and staggered-parallel-type Switching Power Supply can also include the slave switching circuit of multiple parallel connections.
Fig. 2 illustrates the utility model staggered-parallel-type switching power source control circuit schematic diagram, including the first amplifier U100,
Main control circuit U101 and from control circuit U102 and capacitor C0.First amplifier U0 first input end receives feedback voltage FB, the
Two input terminals receive the first reference voltage VREF, outputting reference signal IVC.Main control circuit U101 receive reference signal IVC and
First difference signal Δ VC1, obtains main switch circuit inductive current upper limit value ITOP1 and lower limit value IBOT1, the first difference signal
Δ VC1 characterizes the difference of upper limit value ITOP1 and lower limit value IBOT1, IVC >=ITOP1 or IVC≤IBOT1 or IBOT1 < IVC
< ITOP1.By characterize main switch circuit inductive current the first sampled signal CS1 respectively with the main switch circuit inductive current upper limit
Value ITOP1 and lower limit value IBOT1 are compared, to control conducting and the pass of the first main switch M1 and the first auxiliary switch pipe M3
It is disconnected.Reference signal IVC and the second difference signal Δ VC2 is received from control circuit U102, is obtained from switching circuit inductive current
Limit value ITOP2 and lower limit value IBOT2, the second difference signal Δ VC2 characterize the difference of upper limit value ITOP2 and lower limit value IBOT2, IVC
>=ITOP2 or IVC≤IBOT2 or IBOT2 < IVC < ITOP2.Main switch circuit is detected from control circuit U102 and from opening
The phase difference on powered-down road, and according to the bound difference of its phase difference adjusting inductive current from switching circuit, i.e. adjustment Δ
VC2 obtains new ITOP2 and IBOT2.By characterization from the second sampled signal CS2 of switching circuit inductive current respectively with second
Valley reference signal IBOT2 and the second peak reference signal ITOP2 are compared, auxiliary to control the second main switch M2 and second
The turn-on and turn-off of switching tube M4.One controls one from switching circuit from control circuit, when have it is multiple from switching circuit when, need
Want corresponding multiple from control circuit, any one can control accordingly from control circuit from switching circuit and main switch circuit
Phase difference to expected phase difference, it is multiple can be controlled simultaneously from control circuit it is corresponding multiple from switching circuit and main switch circuit
Phase difference respectively to expected phase difference.
Fig. 3 illustrates the utility model main control circuit schematic diagram, including Your Majesty's lower limit adjusts circuit U 201, comparator
U202, comparator U203, logic circuit U204 and driving circuit U205, Your Majesty's lower limit adjust circuit U 201 and receive reference signal
IVC and the first difference signal Δ VC1 exports main switch circuit inductive current upper limit value ITOP1 and inductive current lower limit value
IBOT1.Comparator U202 non-inverting input terminal receives the first sampled signal CS1, and inverting input terminal receives ITOP1, output end
Output signal VT1, when CS1 reaches ITOP1, the first main switch M1 shutdown, the first auxiliary switch pipe M3 conducting.Comparator U203
Non-inverting input terminal receives IBOT1, and inverting input terminal receives the first sampled signal CS1, and output end output signal VB1 works as CS1
When reaching IBOT1, the first main switch M1 conducting, the first auxiliary switch pipe M3 shutdown.Logic circuit U204 receives VT1 and VB1 letter
Number, TG1 and BG1 signal is exported, TG1 is the first main switch M1 pulse-width signal, and BG1 is the first auxiliary switch pipe M3 modulation letter
Number, driving circuit receives TG1 and BG1, respectively output drive signal VG1_T and VG1_B.
Fig. 4 illustrates the utility model and adjusts electricity from control circuit schematic diagram, including phase difference detecting circuit U301, difference
Road U302, circuit, comparator U304, comparator U305, logic circuit U306 and driving circuit U307 are adjusted from bound.Phase
Difference detecting circuit U301 receives the first signal TG1 and second signal TG2, output characterization main switch circuit and the phase from switching circuit
The phase signal Q, the first signal TG1 and second signal TG2 of potential difference characterize the signal and of the first main switch on-off respectively
The signal of two main switch on-off is respectively first with the first signal TG1 and second signal TG2 in the utility model embodiment
For main switch pulse-width signal and the second main switch pulse-width signal, the first signal TG1 and second signal TG2
It can be respectively main switch circuit inductive current sampling signal CS1 and from switching circuit inductive current sampling signal CS2.The difference
Value adjusts 302 return pulse signal Q of circuit U and characterizes expected phase signal VREF2, output regulation signal Δ VC, from upper and lower
Limit adjusts circuit and receives adjustment signal Δ VC, reference signal IVC, the second difference signal Δ VC2, and output is electric from switching circuit inductance
Flow upper limit value ITOP2 and lower limit value IBOT2, wherein ITOP2-IBOT2=Δ VC2+ Δ VC；Δ VC2+ Δ VC is after adjusting
Second difference signal.Comparator U304 non-inverting input terminal receives the second sampled signal CS2, and inverting input terminal receives ITOP2,
Output end output signal VT2, when CS2 reaches ITOP2, the second main switch M2 shutdown, the second auxiliary switch pipe M4 conducting.Compare
Device U305 non-inverting input terminal receives IBOT2, and inverting input terminal receives the second sampled signal CS2, output end output signal
VB2, when CS2 reaches IBOT2, the second main switch M2 conducting, the second auxiliary switch pipe M4 shutdown.Logic circuit U306 is received
VT2 and VB2 signal exports TG2 and BG2 signal, and TG2 is the second main switch M2 pulse-width signal, and BG2 is the second auxiliary switch
Pipe M4 modulated signal, driving circuit receive TG2 and BG2, respectively output drive signal VG2_T and VG2_B.
Fig. 5 illustrates phase difference detecting circuit and difference adjusts the schematic diagram of circuit, and phase difference detecting circuit includes pulse
Generation circuit U401 and trigger U402, difference adjust circuit include first capacitor C401, first comparator U403, phase inverter,
First switch k1, second switch k2, the first current source i1, the second current source i2 and the second capacitor C402.Pulse-generating circuit
U401 receives the first main switch pulse-width signal TG1 and the second main switch pulse-width signal TG2, TG1 signal, TG2
When signal is respectively high level from low level overturning, pulse-generating circuit exports high level the first pulse signal ph1 and height respectively
Two pulse signal ph2 of level monitoring.Trigger U401 set end receives the first pulse signal ph1, and reset terminal receives the second pulse letter
Number ph2, trigger output signal is analog quantity, as the phase signal.When the utility model trigger output signal is
When digital quantity, analog quantity need to be translated into as the phase signal.It is defeated that first resistor R401 first end connects trigger
Outlet, second end connect first capacitor C401 first end, and first capacitor C401 second end is grounded, and voltage is on first capacitor C401
First voltage V1.First comparator U403 inverting input terminal receives V1, and non-inverting input terminal receives the second reference voltage VREF2, the
One comparator U403 exports the first comparison signal Uon.When the phase difference of two switching circuits is 180 °, the second reference voltage
VREF2 value is the half of signal Q peak value, when the misphase angle of flow of two switching circuits is 120 °, the second reference voltage VREF2
Value is the 1/3 of signal Q peak value, and when the misphase angle of flow of two switching circuits is N °, the second reference voltage VREF2 value is signal
The N/360 of Q peak value.First switch k1 and the first current source i1 is composed in series the first series circuit, the electricity of second switch k2 and second
Stream source i2 is composed in series the second series circuit, the second capacitor C402 of common end connection of the first series circuit and the second series circuit
First end, the second capacitor C402 second end ground connection.First switch k1 and second switch k2 on-off are controlled by the first comparison signal Uon
System works as VREF1 > V1, i.e. when the first comparison signal Uon is high level, first switch k1 conducting, and second switch k2 shutdown, first
Current source i1 exports the first electric current and charges to the second capacitor C402；When VREF1 < V1, i.e. the first comparison signal Uon are low level
When, first switch k1 shutdown, second switch k2 is connected, and the second current source i2 exports the second electric current and discharges to the second capacitor C402,
Voltage is adjustment signal Δ VC on second capacitor C402.
Fig. 6 illustrates the waveform diagram of the utility model staggered-parallel-type switching power source control circuit, and TG1, TG2 are respectively
One main switch pulse-width signal and the first main switch pwm signal waveform, ph1 and ph2 are respectively the first pulse letter
Number and the second pulse signal waveform, CS1 be main switch circuit inductive current waveform, CS2 be from switching circuit inductive current waveform,
IBOT1 and IBOT2 is respectively main switch circuit inductive current lower limit value and from switching circuit inductive current lower limit value, and IVC is base
Calibration signal, with reference signal IVC between main switch inductive current upper limit value and lower limit value, with IBOT1 and IBOT2 size phase
With for.ITOP1 and ITOP2 is respectively main switch circuit inductive current upper limit value and from switching circuit inductive current upper limit value, Q
For phase signal waveform.TG1, TG2 signal are obtained according to sample rate current CS1, CS2, phase difference is obtained by TG1, TG2 signal
Signal Q obtains adjustment signal Δ VC by handling phase signal Q, and then obtains the difference DELTA of new ITOP2 and IBOT2
VC2 achieves that main switch circuit and adjusts from the phase difference of switching circuit after the multiple switch period.
Although embodiment is separately illustrated and is illustrated above, it is related to the common technology in part, in ordinary skill
Personnel apparently, can be replaced and integrate between the embodiments, be related to one of embodiment and the content recorded is not known, then
It can refer to another embodiment on the books.
Embodiments described above does not constitute the restriction to the technical solution protection scope.It is any in above-mentioned implementation
Made modifications, equivalent substitutions and improvements etc., should be included in the protection model of the technical solution within the spirit and principle of mode
Within enclosing.
Claims (10)
1. a kind of staggered-parallel-type switching power source control circuit, the parallel Switching Power Supply of alternating expression include main switch circuit and
From switching circuit, it is characterised in that: the switching power source control circuit includes the first amplifier, and first input end receives feedback electricity
Pressure, the second input terminal receive the first reference voltage, and the first amplifier outputting reference signal, the reference signal is for controlling
Inductive current upper limit value, lower limit value and the upper limit value of inductive current, lower limit value from switching circuit in main switch circuit；
The control circuit is adjusted according to main switch circuit and from the phase difference of switching circuit from switching circuit on inductive current
Lower limit difference, so that main switch circuit and the phase difference from switching circuit reach expected phase difference.
2. staggered-parallel-type switching power source control circuit according to claim 1, it is characterised in that: the Switching Power Supply control
Circuit processed further includes main control circuit, and the main control circuit obtains main switch according to the reference signal, the first difference signal
Inductive current upper limit value and lower limit value in circuit；First difference signal characterizes the inductive current upper limit in the main switch circuit
The difference of value and lower limit value；The reference signal is more than or equal to inductive current upper limit value in main switch circuit, alternatively, the benchmark
Signal is less than or equal to inductive current lower limit value in main switch circuit, alternatively, the reference signal is located at inductance in main switch circuit
Between current upper limit value and lower limit value.
3. staggered-parallel-type switching power source control circuit according to claim 1, it is characterised in that: the Switching Power Supply control
Circuit processed further include from control circuit, it is described when main switch circuit and the phase difference from switching circuit are greater than expected phase difference
Reduce the inductive current bound difference from switching circuit from control circuit；When main switch circuit and from the phase difference of switching circuit
It is described to increase the inductive current bound difference from switching circuit from control circuit when less than expected phase difference.
4. staggered-parallel-type switching power source control circuit according to claim 3, it is characterised in that: described from control circuit
Inductive current upper limit value and lower limit value from switching circuit are obtained according to the reference signal, the second difference signal, described second
The difference of difference signal characterization the inductive current upper limit value and lower limit value from switching circuit；The reference signal is more than or equal to
The inductive current upper limit value from switching circuit, alternatively, the reference signal is less than or equal to the inductive current lower limit from switching circuit
Value, alternatively, the reference signal is located at from switching circuit between inductive current upper limit value and lower limit value；According to main switch circuit
Second difference signal is adjusted with from the phase difference of switching circuit.
5. staggered-parallel-type switching power source control circuit according to claim 4, it is characterised in that: described from control circuit
It further include phase difference detecting circuit, the phase difference detecting circuit reception the first signal and the second signal, output phase difference signal,
The signal of main switch on-off in the first characterization main switch circuit, second signal characterization master from switching circuit open
Close the signal of pipe on-off.
6. staggered-parallel-type switching power source control circuit according to claim 5, it is characterised in that: the first signal table
When levying main switch conducting in main switch circuit, the phase difference detecting circuit output phase difference signal；The second signal characterization
When main switch is connected from switching circuit, the phase signal level overturning.
7. staggered-parallel-type switching power source control circuit according to claim 6, it is characterised in that: the phase difference detection
Circuit includes pulse-generating circuit and trigger, and the pulse-generating circuit receives the first signal and the second signal, output
First pulse signal and the second pulse signal；The trigger set end receives first pulse signal, and the trigger is multiple
Position end receives second pulse signal, and the trigger output signal is as the phase signal or the trigger
The phase signal is used as after output signal conversion.
8. staggered-parallel-type switching power source control circuit according to claim 5, it is characterised in that: described from control circuit
It further include that difference adjusts circuit, the difference adjusts circuit receiving phase difference signal, when main switch circuit and from switching circuit
For phase difference when phase difference is big than expected, the first electric current of control gives first capacitor electric discharge；When main switch circuit and from switching circuit
Phase difference hour, the second electric current of control charge phase difference to first capacitor than expected, to obtain adjusting voltage, the adjusting voltage
Second difference signal is adjusted, the adjusting voltage characterizes the second difference signal variable quantity.
9. staggered-parallel-type switching power source control circuit according to claim 8, it is characterised in that: the difference adjusts electricity
Road includes filter circuit and comparator, and the filter circuit includes first resistor and the second capacitor, the first resistor first end
Phase difference detecting circuit output end is connected, second end connects the second capacitor first end, the second capacitor second end ground connection, institute
Stating voltage on the second capacitor is first voltage, and the comparator first end receives first voltage, and second end receives the second reference
Voltage, the comparator export comparison signal, and second reference voltage characterizes expected phase difference.
10. staggered-parallel-type switching power source control circuit according to claim 9, it is characterised in that: the difference is adjusted
Circuit further includes the first current source, the second current source and the first capacitor, when the first voltage reaches the second reference voltage,
The comparison signal controls first current source conduction, exports first electric current；The first voltage is not up to the second ginseng
When examining voltage, the comparison signal controls second current source conduction, exports second electric current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821062266.9U CN208581166U (en) | 2018-07-05 | 2018-07-05 | Staggered-parallel-type switching power source control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821062266.9U CN208581166U (en) | 2018-07-05 | 2018-07-05 | Staggered-parallel-type switching power source control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208581166U true CN208581166U (en) | 2019-03-05 |
Family
ID=65508553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821062266.9U Withdrawn - After Issue CN208581166U (en) | 2018-07-05 | 2018-07-05 | Staggered-parallel-type switching power source control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208581166U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108599571A (en) * | 2018-07-05 | 2018-09-28 | 杰华特微电子（杭州）有限公司 | Staggered-parallel-type switching power source control circuit and control method |
| US12068682B2 (en) | 2022-07-25 | 2024-08-20 | Stmicroelectronics S.R.L. | Control method and circuit for phase shift regulation of interleaved converters at variable switching frequency |
-
2018
- 2018-07-05 CN CN201821062266.9U patent/CN208581166U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108599571A (en) * | 2018-07-05 | 2018-09-28 | 杰华特微电子（杭州）有限公司 | Staggered-parallel-type switching power source control circuit and control method |
| CN108599571B (en) * | 2018-07-05 | 2024-04-19 | 杰华特微电子股份有限公司 | Staggered parallel type switching power supply control circuit and control method |
| US12068682B2 (en) | 2022-07-25 | 2024-08-20 | Stmicroelectronics S.R.L. | Control method and circuit for phase shift regulation of interleaved converters at variable switching frequency |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Room 901-23, 9 / F, west 4 building, Xigang development center, 298 Zhenhua Road, Sandun Town, Xihu District, Hangzhou City, Zhejiang Province, 310030 Patentee after: Jiehuate Microelectronics Co.,Ltd. Address before: Room 424, building 1, 1500 Wenyi West Road, Cangqian street, Yuhang District, Hangzhou City, Zhejiang Province Patentee before: JOULWATT TECHNOLOGY Inc.,Ltd. |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190305 Effective date of abandoning: 20240419 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190305 Effective date of abandoning: 20240419 |