CN104600993A - System and method for switching source poles and generating voltage - Google Patents
System and method for switching source poles and generating voltage Download PDFInfo
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- CN104600993A CN104600993A CN201410852932.9A CN201410852932A CN104600993A CN 104600993 A CN104600993 A CN 104600993A CN 201410852932 A CN201410852932 A CN 201410852932A CN 104600993 A CN104600993 A CN 104600993A
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- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 230000009466 transformation Effects 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 18
- 230000004044 response Effects 0.000 description 18
- 238000004513 sizing Methods 0.000 description 13
- 230000005669 field effect Effects 0.000 description 11
- 230000004048 modification Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 238000006467 substitution reaction Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
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- 101150031507 porB gene Proteins 0.000 description 4
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Classifications
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- 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
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- 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
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
-
- 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of ac power input into dc power output without possibility of reversal 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
- H02M7/217—Conversion of ac power input into dc power output without possibility of reversal 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention discloses a system and a method for switching source poles and generating voltage. The system and the method for switching the source poles and generating the voltage are used to adjust a power transformation system. An example system controller for adjusting the power transformation system comprises a first controller terminal associated with first controller voltage and coupled to a first transistor terminal of a first transistor, a second controller terminal associated with second controller voltage and coupled to a third transistor terminal and a third controller terminal associated with third controller voltage, wherein the first transistor further comprises a second transistor terminal and a third transistor terminal, the second transistor terminal is coupled to a primary winding of a power switch system, the first controller voltage is equal to the sum of a first voltage difference and the third controller voltage, and the second controller voltage is equal to the sum of a second voltage difference and the third controller voltage.
Description
The application is application number is 201210564309.4, the applying date is on December 21st, 2012, be entitled as the divisional application of the application for a patent for invention of " for the system and method that source electrode switches and voltage generates ".
Technical field
The present invention relates to integrated circuit.More specifically, the invention provides the system and method switching (source switching) and/or builtin voltage generation for source electrode.As just example, the present invention is applied to power converting system.But will recognize, the present invention has range of application widely.
Background technology
Traditional switched-mode power supply often uses high-voltage power MOSFET to switch to realize gate.But the high-voltage starting circuit for such switched-mode power supply normally utilizes expensive high-voltage semi-conductor manufacture technics.In addition, traditional switched-mode power supply often experiences slow startup and high stand-by power consumption.
Therefore, the handover scheme improving power converting system becomes extremely important.
Summary of the invention
The present invention relates to integrated circuit.More specifically, the invention provides for the system and method that source electrode switches and/or builtin voltage generates.As just example, the present invention is applied to power converting system.But will recognize, the present invention has range of application widely.
According to an embodiment, a kind of system controller for adjusting power converting system comprises: the first controller terminal, this the first controller terminal is associated with the first controller voltage and is coupled to the first transistor terminal of the first transistor, the first transistor also comprises transistor seconds terminal and third transistor terminal, and transistor seconds terminal is coupled to the armature winding of power converting system; Second controller terminal, this second controller terminal is associated with second controller voltage and is coupled to third transistor terminal; And the 3rd controller terminal, the 3rd controller terminal is associated with the 3rd controller voltage.First controller voltage equals the first voltage difference and the 3rd controller voltage sum.Second controller voltage equals the second voltage difference and the 3rd controller voltage sum.System controller is configured to make the first voltage difference keep constant, and changes the second voltage difference, also affects with conducting or cut-off the first transistor the primary current flowing through armature winding.
According to the second embodiment, a kind of system controller for adjusting power converting system comprises: the first controller terminal, this the first controller terminal is associated with the first controller voltage and is coupled to the first transistor terminal of the first transistor, the first transistor also comprises transistor seconds terminal and third transistor terminal, and transistor seconds terminal is coupled to the armature winding of power converting system; Second controller terminal, this second controller terminal is associated with second controller voltage and is coupled to the first capacitor terminal of third transistor terminal and the first capacitor; With the 3rd controller terminal, the 3rd controller terminal is associated with the 3rd controller voltage.This system controller comprises: transistor seconds, and this transistor seconds comprises the 4th transistor terminal, the 5th transistor terminal and the 6th transistor terminal, and the 5th transistor terminal is coupled to second controller terminal; And the first clamper assembly, this first clamper assembly comprises the first pack terminals and the second pack terminals, and the first pack terminals is coupled to the first controller terminal.
According to another embodiment, a kind of system controller for adjusting power converting system comprises: the first controller terminal, this the first controller terminal is associated with the first controller voltage and is coupled to the first transistor terminal of the first transistor, the first transistor also comprises transistor seconds terminal and third transistor terminal, and transistor seconds terminal is coupled to the armature winding of power converting system; Second controller terminal, this second controller terminal is associated with second controller voltage and is coupled to third transistor terminal, and second controller terminal is also coupled to the first capacitor terminal of the first capacitor by diode; And the 3rd controller terminal, the 3rd controller terminal is associated with the 3rd controller voltage.This system controller also comprises: transistor seconds, and this transistor seconds comprises the 4th transistor terminal, the 5th transistor terminal and the 6th transistor terminal, and the 5th transistor terminal is coupled to second controller terminal; And diode, comprise anode terminal and cathode terminal, cathode terminal is coupled to the first capacitor terminal, and anode terminal is coupled to second controller terminal.This system controller is configured to be charged by diode pair first capacitor in response to one or more current spike.
According to another embodiment, a kind of system controller for adjusting power converting system comprises: the first controller terminal, this the first controller terminal is associated with the first controller voltage and is coupled to the first transistor terminal of the first transistor, the first transistor also comprises transistor seconds terminal and third transistor terminal, and transistor seconds terminal is coupled to the armature winding of power converting system; Second controller terminal, this second controller terminal is associated with second controller voltage and is coupled to third transistor terminal; And the 3rd controller terminal, the 3rd controller terminal is associated with the 3rd controller voltage.This system controller also comprises: the 4th controller terminal, and the 4th controller terminal is associated with the 4th controller voltage and is coupled to the first capacitor terminal of capacitor, and capacitor also comprises the second capacitor terminal being coupled to the 3rd controller terminal; Transistor seconds, this transistor seconds comprises the 4th transistor terminal, the 5th transistor terminal and the 6th transistor terminal, and the 5th transistor terminal is coupled to second controller terminal; And switch, be configured to reception control signal and comprise the first switch terminal and second switch terminal, the first switch terminal is coupled to second controller terminal, and second switch terminal is coupled to the first controller terminal.And if if when when this system controller is configured to transistor seconds conducting, the 4th controller voltage is less than first threshold, then Closing Switch.
In one embodiment, a kind of system controller for adjusting power converting system comprises: the first controller terminal, this the first controller terminal is associated with the first controller voltage and is coupled to the first transistor terminal of the first transistor, the first transistor also comprises transistor seconds terminal and third transistor terminal, and third transistor terminal is coupled to the armature winding of power converting system; Transistor seconds, this transistor seconds comprises the 4th transistor terminal, the 5th transistor terminal and the 6th transistor terminal, and the 5th transistor terminal is coupled to the first resistor; And the first clamper assembly, be coupled to the 4th transistor terminal.First clamper assembly is configured to receive the electric current be associated with the first controller voltage, at least based on the information generating reference voltage be associated with electric current, and the 4th transistor terminal is biased to reference voltage to generate supply power voltage at the 5th transistor terminal place.
In another embodiment, a kind of method for adjusting power converting system, this power converting system comprises the system controller with the first controller terminal, second controller terminal and the 3rd controller terminal, the method comprises: generate the first controller voltage be associated with the first controller terminal, first controller terminal is coupled to the first transistor terminal of the first transistor, the first transistor also comprises transistor seconds terminal and third transistor terminal, and transistor seconds terminal is coupled to the armature winding of power converting system; Generate the second controller voltage be associated with the second controller terminal being coupled to third transistor terminal; And generate the 3rd controller voltage be associated with the 3rd controller terminal.The method also comprises: process the information be associated with the first controller voltage, second controller voltage and the 3rd controller voltage, first controller voltage equals the first voltage difference and the 3rd controller voltage sum, and second controller voltage equals the second voltage difference and the 3rd controller voltage sum; The first voltage difference is made to keep constant; And change the second voltage difference, also affect with conducting or cut-off the first transistor the primary current flowing through armature winding.
In another embodiment, a kind of method for adjusting power converting system, this power converting system comprises the system controller with controller terminal, the method comprises: generate the controller voltage be associated with controller terminal, controller terminal is coupled to the first transistor terminal of the first transistor, the first transistor also comprises transistor seconds terminal and third transistor terminal, and third transistor terminal is coupled to the armature winding of power converting system; Generate the electric current be associated with controller voltage; At least based on the information be associated with electric current, the 4th transistor terminal of transistor seconds is biased to reference voltage, transistor seconds also comprises the 5th transistor terminal and the 6th transistor terminal, and the 6th transistor is coupled to resistor; And at least generate supply power voltage based on the information be associated with reference voltage at the 5th transistor terminal place.
According to another embodiment, a kind of system controller for adjusting power converting system comprises: controller terminal, this controller terminal is associated with controller voltage and is coupled to the first transistor terminal of the first transistor, the first transistor also comprises transistor seconds terminal and third transistor terminal, and third transistor terminal is coupled to the armature winding of power converting system; First resistor, this first resistor is coupled to controller terminal; And clamper assembly, this clamper assembly is coupled to the first resistor.Clamper assembly is configured to receive from the first resistor the electric current be associated with controller voltage, at least based on the information generating reference voltage be associated with electric current, and outputs to voltage regulator with reference to voltage.
According to another embodiment, a kind of method for adjusting power converting system, this power converting system comprises the system controller with controller terminal, the method comprises: generate the controller voltage be associated with controller terminal, controller terminal is coupled to the first transistor terminal of the first transistor, the first transistor also comprises transistor seconds terminal and third transistor terminal, and third transistor terminal is coupled to the armature winding of power converting system; Generate the electric current be associated with controller voltage, electric current flows through the resistor being coupled to controller terminal; At least based on the information generating reference voltage be associated with electric current; And export to voltage regulator with reference to voltage.
Compared to conventional art, by present invention obtains many benefits.Such as, some embodiments of the present invention provide the scheme using the internal transistor in system controller to carry out source electrode switching.In another example, some embodiment of the present invention provides for being reduced to under-voltage locking (UVLO) threshold voltage such as close to the system and method for internal supply voltage.In another example, some embodiments of the present invention provide for charging to capacitor to utilize the conduction current of transistor to provide the system and method for supply power voltage rapidly during start treatment.
Depend on embodiment, one or more benefit can be obtained.These benefits of the present invention and each other object, feature and advantage can be understood all sidedly with reference to the detailed description and the accompanying drawings below.
Accompanying drawing explanation
Fig. 1 illustrates the simplification diagram with the power converting system that source electrode switches and/or builtin voltage generates according to the embodiment of the present invention.
Fig. 2 illustrates the simplification diagram as some assembly in the controller 102 of power converting system 100 part according to the embodiment of the present invention.
Fig. 3 (a) illustrates according to another embodiment of the present invention as the simplification diagram of some assembly in the controller 102 of power converting system 100 part.
Fig. 3 (b) illustrates according to another embodiment of the present invention as the simplification diagram of some assembly in the controller 102 of power converting system 100 part.
Fig. 4 illustrates the simplification diagram as some assembly in the controller 102 of power converting system 100 part according to further embodiment of this invention.
Fig. 5 illustrates the simplification diagram as some assembly in the controller 102 of power converting system 100 part according to further embodiment of this invention.
Embodiment
The present invention relates to integrated circuit.More specifically, the invention provides for the system and method that source electrode switches and/or builtin voltage generates.As just example, the present invention is applied to power converting system.But will recognize, the present invention has range of application widely.
Fig. 1 illustrates the simplification diagram with the power converting system that source electrode switches and/or builtin voltage generates according to the embodiment of the present invention.This diagram is only example, and it should not limit the scope of claim undeservedly.Those skilled in the art will recognize that many variants, substitutions and modifications.
Power converting system 100 comprises controller 102, armature winding 142, secondary winding 144, auxiliary winding 146, switch 122, capacitor 120,128,134,150,154 and 158, resistor 124,130,132,136 and 152, diode 160 is comprised, 162, the full-wave rectification bridge of 164 and 166 and diode 126,148 and 156.Controller 102 comprises terminal 104,106,108,110,112,114,116 and 118.Such as, system 100 provides electric power to one or more light-emitting diode.In another example, switch 122 is transistors.In another example, switch 122 be field-effect transistor (such as, mos field effect transistor), it comprises terminal 174 (such as, drain terminal), terminal 176 (such as, gate terminal) and terminal 178 (such as, source terminal).
According to an embodiment, transistor 122 conducting and cut-off based on the voltage signal 182 at terminal 176 (such as, gate terminal) place and the difference of the voltage signal 180 at terminal 178 (such as, source terminal) place.In another example, system 100 performs source electrode switching by the voltage signal 180 changing terminal 178 (such as, source terminal) place to transistor 122.In another example, system 100 is by making the voltage signal 182 at terminal 176 place keep constant and the voltage signal 180 changing terminal 178 (such as, source terminal) place performs source electrode to transistor 122 switches.In another example, the terminal 174 (such as, drain terminal) of transistor 122 directly or is indirectly connected to armature winding 142, and the terminal 176 of transistor 122 (such as, gate terminal) be connected to terminal 116 (such as, terminal GATE).In another example, the terminal 178 (such as, source terminal) of transistor 122 is connected to terminal 118 (such as, terminal SW).
As shown in Figure 1, in certain embodiments, the AC input signal of full-wave rectification bridge process from AC provisioning component 170 of diode 160,162,164 and 166 is comprised, and formation voltage signal 172.Such as, the size of voltage signal 182 increases in response to the voltage signal 172 by capacitor 120 and resistor 124, and finally reaches pre-sizing.In another example, voltage signal 182 is fixed to this pre-sizing.In another example, if voltage signal 182 is greater than threshold value, then transistor 122 conducting with the difference of voltage signal 180.In another example, electric current 184 flows through transistor 122 and enters terminal 118 (such as, terminal SW), and flows out terminal 112 (such as, terminal VDD) to charge to capacitor 128, thus provides supply power voltage for controller 102.
In another embodiment, system 100 generates for controller 102 performs builtin voltage.Such as, when controller 102 starts normal running, provided internal current to generate internal supply voltage for controller 102 by the capacitor 120 charged.In another example, the internal supply voltage generated is about 5V.In another example, the supply power voltage signal 198 at terminal 112 (such as, terminal VDD) place can be equally low with internal supply voltage.
Fig. 2 illustrates the simplification diagram as some assembly in the controller 102 of power converting system 100 part according to the embodiment of the present invention.This diagram is only example, and it should not limit the scope of claim undeservedly.Those skilled in the art will recognize that many variants, substitutions and modifications.Controller 102 comprises voltage clamp 188 (such as, Zener diode), diode 186, actuator assembly 190 and switch 192.Such as, switch 192 is transistors.In another example, switch 192 is field-effect transistor (such as, MOSFET).
As shown in Figure 2, according to some embodiment, actuator assembly 190 affects the voltage signal 194 at terminal 193 place of transistor 192 with conducting or "off" transistor 192.Such as, when transistor 192 ends, transistor 122 ends.In another example, when transistor 192 conducting, the voltage 196 at terminal 110 place is approximately equal to voltage signal 180, and when being greater than threshold value by voltage signal 182 with the difference of voltage signal 180, transistor 122 conducting.In another example, during start treatment, capacitor 120 is charged in response to voltage signal 172 and the size of voltage signal 182 increases.In certain embodiments, once voltage signal 182 reaches pre-sizing, then voltage clamp 188 just by voltage signal 182 clamper (such as, fixing) in pre-sizing (such as, the puncture voltage of voltage clamp 188).Such as, in certain embodiments, it is by voltage clamp 188 clamper.Such as, this pre-sizing (such as, 18V) of properties influence of voltage clamp 188.In another example, the maximum of voltage signal 180 equals voltage signal 182 and the pressure drop sum on diode 186 in size.In another example, in the normal operation period, capacitor 120 continues to receive electric charge (spike that the switch such as, being freed from transistor 122 and transistor 192 causes) to make voltage signal 182 keep constant or substantial constant.
Fig. 3 (a) illustrates according to another embodiment of the present invention as the simplification diagram of some assembly in the controller 102 of power converting system 100 part.This diagram is only example, and it should not limit the scope of claim undeservedly.Those skilled in the art will recognize that many variants, substitutions and modifications.Controller 102 comprises voltage clamp 202 (such as, Zener diode), diode 204 and 212, actuator assembly 206, switch 208, under-voltage locking and low voltage difference and exports (UVLO & LDO) assembly 210, resistor 213 and switch 214.Such as, switch 208 is transistors.In another example, switch 208 is field-effect transistor (such as, MOSFET).
As shown in Fig. 3 (a), according to some embodiment, actuator assembly 206 affects the voltage signal 216 at terminal 218 (such as, the gate terminal) place of transistor 208 so that conducting or "off" transistor 208.Such as, the state (such as, conducting or cut-off) of transistor 122 depends on that transistor 208 is conducting or cut-off.In another example, during start treatment, the size of voltage signal 182 increases in response to the voltage signal 172 by resistor 124 and capacitor 120.In certain embodiments, once voltage signal 182 reaches pre-sizing, then voltage clamp 202 (such as, Zener diode) just by voltage signal 182 clamper (such as, fixing) in this pre-sizing (such as, the puncture voltage of voltage clamp 202).Such as, this pre-sizing (such as, 18V) of properties influence of voltage clamp 202.
In one embodiment, when voltage signal 182 is greater than threshold value with the difference of voltage signal 180, transistor 122 starts conduction current 174, and electric current 174 flows through terminal 118 (such as, terminal SW).In another example, if the signal 222 that switch 214 generates in response to UVLO & LDO assembly 210 (such as, porB)) close (such as, connect), then electric current 172 flows through diode 212 and switch 214 to charge to capacitor 128, and the size of the voltage signal 224 at terminal 112 (such as, terminal VDD) place increases.In another example, when the size of voltage signal 224 more than the first predetermined threshold voltage (such as, upper limit threshold) time, UVLO & LDO assembly 210 changes signal 222 to disconnect (such as, turn off) switch 214.In another example, if the size of voltage signal 224 drops to the second predetermined threshold voltage (such as, lower threshold) under, then UVLO & LDO assembly 210 changes signal 222 to close (such as, connect) switch 214, thus again capacitor 128 is charged.In another example, electric current 172 is at least subject to the restriction of the resistor 213 be coupled between terminal 118 (such as, terminal SW) Yu terminal 112 (such as, terminal VDD).In another example, the maximum of voltage signal 180 equals voltage signal 182 and the pressure drop sum on diode 204 in size.In another example, this first predetermined threshold voltage and the second predetermined threshold voltage similar and different.Resistor 213 is omitted in certain embodiments.
In another embodiment, auxiliary winding 146 is removed, and switch 214 keeps connecting always.In another embodiment, auxiliary winding 146 and switch 214 are removed, and diode 212 is coupled between terminal 118 and terminal 112.Such as, when not assisting winding 146, the supply power voltage of controller 102 is provided by transistor 122.In another example, switch 214 utilizes p slot field-effect transistor (such as, p NMOS N-channel MOS N field-effect transistor) to realize.
Fig. 3 (b) illustrates the simplification diagram as some assembly in the controller 102 of power converting system 100 part according to further embodiment of this invention.This diagram is only example, and it should not limit the scope of claim undeservedly.Those skilled in the art will recognize that many variants, substitutions and modifications.Controller 102 comprises voltage clamp 202 (such as, Zener diode), diode 204 and 212, actuator assembly 206, transistor 208, under-voltage locking and low voltage difference and exports (UVLO & LDO) assembly 210, resistor 213 and switch 214.In addition, controller 102 comprises current source 230 and diode 232.Such as, switch 208 is field-effect transistor (such as, MOSFET).
According to an embodiment, the voltage signal 182 of terminal 176 (such as, the gate terminal of transistor 122) is retained as and is not less than predetermined level.Such as, diode 232 has forward voltage (such as, V
f).In another example, during the normal running of power converting system 100, the voltage signal 224 at terminal 112 (such as, terminal VDD) place is not less than under-voltage locking voltage (such as, V
uVLO).Therefore, according to some embodiment, the minimum value of voltage signal 182 is determined as follows:
V
GATE≥V
UVLO-V
f(1)
Wherein V
gATErepresent voltage signal 182.Such as, when the size of voltage signal 182 deducts the forward voltage of diode 232 lower than voltage signal 224, capacitor 120 is charged in response to electric current 234, electric current 234 from terminal 112 (such as, terminal VDD) flow to terminal 116 (such as, terminal GATE) through diode 232.
Fig. 4 illustrates the simplification diagram as some assembly in the controller 102 of power converting system 100 part according to further embodiment of this invention.This diagram is only example, and it should not limit the scope of claim undeservedly.Those skilled in the art will recognize that many variants, substitutions and modifications.Controller 102 comprises voltage clamp 302 and 332, diode 304 and 312, actuator assembly 306, switch 308 and 334, under-voltage locking (UVLO) assembly 310, switch 314, resistor 330 and 336.Such as, switch 308 and 334 is transistors.In another example, switch 308 is field-effect transistor (such as, MOSFET).In another example, switch 334 is field-effect transistor (such as, MOSFET).
As shown in Figure 4, according to some embodiment, actuator assembly 306 affects the voltage signal 316 at terminal 318 (such as, the gate terminal) place of transistor 308 so that conducting or "off" transistor 308.Such as, the state (such as, conducting or cut-off) of transistor 122 depends on that transistor 308 is conducting or cut-off.In another example, during start treatment, the size of voltage signal 182 increases in response to the voltage signal 172 by resistor 124 and capacitor 120.In certain embodiments, once voltage signal 182 reaches pre-sizing, then voltage clamp 302 just by voltage signal 182 clamper (such as, fixing) in this pre-sizing (such as, the puncture voltage of voltage clamp 302).
In one embodiment, when voltage signal 182 is greater than threshold value with the difference of voltage signal 180, transistor 122 starts conduction current 174, and electric current 174 flows through terminal 118 (such as, terminal SW).In another example, if the signal 322 that switch 314 generates in response to UVLO assembly 310 (such as, porB)) close (such as, connect), then electric current 172 flows through diode 312 and switch 314 to charge to capacitor 128, and the size of the voltage signal 324 at terminal 112 (such as, terminal VDD) place increases.In another example, when the size of voltage signal 324 more than the first predetermined threshold voltage (such as, upper limit threshold) time, UVLO assembly 310 changes signal 322 to disconnect (such as, turn off) switch 314.In another example, if the size of voltage signal 324 drops under the second predetermined threshold voltage (such as, lower threshold), then UVLO assembly 310 changes signal 322 to close (such as, connect) switch 314, thus again capacitor 128 is charged.In another example, this first predetermined threshold voltage and the second predetermined threshold voltage similar and different.
In another embodiment, when controller 102 starts normal running, provided electric current 350 by the capacitor 120 charged, electric current 350 flows through resistor 330.Such as, in response to electric current 350 generating reference voltage signal 352 (such as, the V flowing to voltage clamp 332 from resistor 330
ref).In certain embodiments, reference voltage signal 352 is provided to voltage regulator as reference level.Such as, voltage regulator comprises transistor 334, and transistor 334 is configured to source follower.In another example, reference voltage signal 352 (such as, V
ref) be generated at terminal 354 (such as, the gate terminal) place of transistor 334.In another example, once voltage signal 352 (such as, V
ref) reach pre-sizing, then voltage clamp 332 just by voltage signal 352 clamper (such as, fixing) in this pre-sizing (such as, the puncture voltage of voltage clamp 332).In another example, if transistor 334 conducting, then voltage signal 356 (such as, AVDD) is generated by terminal 358 place of resistor 336 at transistor 334.In another example, voltage signal 356 (such as, AVDD) is used to as controller 102 provides internal supply voltage.In another example, signal 356 (such as, AVDD) is the internal signal of controller 102, such as, and internal supply voltage.
V
AVDD＝V
ref-V
th(2)
Wherein, V
refrepresent reference voltage signal 352, V
threpresent the threshold voltage of transistor 334.
Such as, the puncture voltage of voltage clamp 332 (such as, Zener diode) is about 6V, and the threshold voltage of transistor 334 is about 1V.In certain embodiments, voltage signal 356 is generated as about 5V.Such as, even if to be about 5V so low for voltage signal 324, transistor 334 by operating the voltage signal 356 that still can generate about 5V in the range of linearity.Therefore, in certain embodiments, the second predetermined threshold voltage (such as, lower threshold) of UVLO assembly 310 can be reduced to low size (such as, 5V).
In another embodiment, in the normal operation period, capacitor 120 passes through diode 304 (such as in response to when each switch of transistor 308 (such as, M2), D2) spike generated and being charged, to make voltage signal 182 keep constant or substantial constant.Such as, resistor 124 has large resistance to reduce power loss.In another example, spike mainly generates when transistor 308 ends.
Fig. 5 is the simplification diagram of the primary clustering of the controller 102 as power converting system 100 part illustrated according to further embodiment of this invention.This diagram is only example, and it should not limit the scope of claim undeservedly.Those skilled in the art will recognize that many variants, substitutions and modifications.Controller 402 comprises Zener diode 402,432 and 462, diode 404 and 412, actuator assembly 406, transistor 408 and 434, under-voltage locking (UVLO) assembly 410, switch 414,464,466 and 468 and resistor 430 and 436.Such as, transistor 408 is field-effect transistor (such as, MOSFET).In another example, transistor 434 is field-effect transistor (such as, MOSFET).
As shown in Figure 5, according to some embodiment, actuator assembly 406 affects the voltage signal 416 at terminal 418 (such as, the gate terminal) place of transistor 408 with conducting or "off" transistor 408.Such as, the state (such as, conducting or cut-off) of transistor 122 depends on that transistor 408 is conducting or cut-off.In another example, during start treatment, the size of voltage signal 182 increases in response to the voltage signal 172 by resistor 124 and capacitor 120.In certain embodiments, once voltage signal 182 reaches pre-sizing, then it is at least by Zener diode 402 clamper (such as, fixing).Such as, during start treatment, the size of the voltage signal 424 at terminal 112 (such as, terminal VDD) place is lower than the first predetermined threshold voltage (such as, upper limit threshold), and UVLO assembly 410 generates signal 422 (such as, porB) with closed (such as, connecting) switch 414 and 464, and signal 470 is generated (such as, por) to disconnect (such as, turning off) switch 466 and 468.In another example, when signal 422 is logic high, signal 470 is logic low, and when signal 422 is logic low, signal 470 is logic high.
In one embodiment, when voltage signal 182 is greater than threshold value with the difference of voltage signal 180, transistor 122 starts conduction current 174, and electric current 174 flows through terminal 118 (such as, terminal SW).In another example, if switch 414 in response to signal 422 (such as, porB)) close (such as, connect), then electric current 172 flows through diode 412 and switch 414 to charge to capacitor 128, and the size of the voltage signal 424 at terminal 112 (such as, terminal VDD) place increases.In another example, when the size of voltage signal 424 is more than the first predetermined threshold voltage, UVLO assembly 410 changes signal 422 to disconnect (such as, turning off) switch 414.In another example, if the size of voltage signal 424 drops under the second predetermined threshold voltage (such as, lower threshold), then UVLO assembly 410 changes signal 422 to close (such as, connect) switch 414, thus again capacitor 128 is charged.In another example, if the size of voltage signal 424 is more than the first predetermined threshold voltage, then the signal 470 that generates in response to UVLO assembly 410 of switch 466 and close (such as, connecting), and voltage signal 182 is by Zener diode 402 clamper (such as, fixing).In another example, if the size of voltage signal 424 drops to below the second predetermined threshold voltage, the then signal 470 that generates in response to UVLO assembly 410 of switch 466 and disconnect (such as, turn off), and voltage signal 182 is by Zener diode 402 and Zener diode 462 clamper (such as, fixing).In another example, this first predetermined threshold voltage and the second predetermined threshold voltage similar and different.
In another embodiment, when controller 102 normal running, if the size of voltage signal 424 is greater than the first predetermined threshold voltage, the then signal 470 that generates in response to UVLO assembly 410 of switch 468 and close (such as, connect), and switch 464 disconnects in response to signal 422 (such as, turning off).In another example, provided electric current 450 by the capacitor 120 charged, electric current 450 flows through resistor 430.Such as, in response to electric current 450 generating reference voltage signal 452 (such as, the V flowing to voltage clamp 432 from resistor 430
ref).In certain embodiments, reference voltage signal 452 is provided to voltage regulator as reference level.Such as, voltage regulator comprises transistor 434, and transistor 434 is configured to source follower.In another example, reference voltage signal 452 is generated at terminal 454 (such as, the gate terminal) place of transistor 434.In another example, if transistor 434 conducting, then voltage signal 456 (such as, AVDD) is generated by terminal 458 place of resistor 436 at transistor 434.In another example, signal 456 (such as, AVDD) is the internal signal of controller 102, such as, and internal supply voltage.
V
AVDD＝V
ref-V
th(3)
Wherein, V
refrepresent reference voltage signal 452, V
threpresent the threshold voltage of transistor 434.
According to another embodiment, a kind of system controller for adjusting power converting system comprises: the first controller terminal, this the first controller terminal is associated with the first controller voltage and is coupled to the first transistor terminal of the first transistor, described the first transistor also comprises transistor seconds terminal and third transistor terminal, and described transistor seconds terminal is coupled to the armature winding of power converting system; Second controller terminal, this second controller terminal is associated with second controller voltage and is coupled to described third transistor terminal; And the 3rd controller terminal, the 3rd controller terminal is associated with the 3rd controller voltage.Described first controller voltage equals the first voltage difference and described 3rd controller voltage sum.Described second controller voltage equals the second voltage difference and described 3rd controller voltage sum.Described system controller is configured to make described first voltage difference to keep constant, and changes described second voltage difference, with conducting or end described the first transistor and impact flows through the primary current of described armature winding.Such as, this system controller realizes according to Fig. 1, Fig. 2, Fig. 3 (a), Fig. 3 (b), Fig. 4 and/or Fig. 5.
According to another embodiment, a kind of system controller for adjusting power converting system comprises: the first controller terminal, this the first controller terminal is associated with the first controller voltage and is coupled to the first transistor terminal of the first transistor, described the first transistor also comprises transistor seconds terminal and third transistor terminal, and described transistor seconds terminal is coupled to the armature winding of power converting system; Second controller terminal, this second controller terminal is associated with second controller voltage and is coupled to the first capacitor terminal of described third transistor terminal and the first capacitor; With the 3rd controller terminal, the 3rd controller terminal is associated with the 3rd controller voltage.This system controller comprises: transistor seconds, and this transistor seconds comprises the 4th transistor terminal, the 5th transistor terminal and the 6th transistor terminal, and described 5th transistor terminal is coupled to described second controller terminal; And the first clamper assembly, this first clamper assembly comprises the first pack terminals and the second pack terminals, and described first pack terminals is coupled to described first controller terminal.Such as, this system controller at least realizes according to Fig. 2, Fig. 3 (a), Fig. 3 (b), Fig. 4 and/or Fig. 5.
According to another embodiment, a kind of system controller for adjusting power converting system comprises: the first controller terminal, this the first controller terminal is associated with the first controller voltage and is coupled to the first transistor terminal of the first transistor, described the first transistor also comprises transistor seconds terminal and third transistor terminal, and described transistor seconds terminal is coupled to the armature winding of power converting system; Second controller terminal, this second controller terminal is associated with second controller voltage and is coupled to described third transistor terminal, and described second controller terminal is also coupled to the first capacitor terminal of the first capacitor by diode; And the 3rd controller terminal, the 3rd controller terminal is associated with the 3rd controller voltage.This system controller also comprises: transistor seconds, and this transistor seconds comprises the 4th transistor terminal, the 5th transistor terminal and the 6th transistor terminal, and described 5th transistor terminal is coupled to described second controller terminal; And described diode, comprise anode terminal and cathode terminal, described cathode terminal is coupled to described first capacitor terminal, and described anode terminal is coupled to described second controller terminal.This system controller is configured in response to one or more current spike by the first capacitor charging described in described diode pair.Such as, this system controller at least realizes according to Fig. 2, Fig. 3 (a), Fig. 3 (b), Fig. 4 and/or Fig. 5.
According to another embodiment, a kind of system controller for adjusting power converting system comprises: the first controller terminal, this the first controller terminal is associated with the first controller voltage and is coupled to the first transistor terminal of the first transistor, described the first transistor also comprises transistor seconds terminal and third transistor terminal, and described transistor seconds terminal is coupled to the armature winding of power converting system; Second controller terminal, this second controller terminal is associated with second controller voltage and is coupled to described third transistor terminal; And the 3rd controller terminal, the 3rd controller terminal is associated with the 3rd controller voltage.This system controller also comprises: the 4th controller terminal, 4th controller terminal is associated with the 4th controller voltage and is coupled to the first capacitor terminal of capacitor, and described capacitor also comprises the second capacitor terminal being coupled to described 3rd controller terminal; Transistor seconds, this transistor seconds comprises the 4th transistor terminal, the 5th transistor terminal and the 6th transistor terminal, and described 5th transistor terminal is coupled to described second controller terminal; And switch, be configured to reception control signal and comprise the first switch terminal and second switch terminal, described first switch terminal is coupled to described second controller terminal, and described second switch terminal is coupled to described first controller terminal.And if if when when this system controller is configured to described transistor seconds conducting, described 4th controller voltage is less than first threshold, then closed described switch.Such as, this system controller at least realizes according to Fig. 3 (a), Fig. 3 (b), Fig. 4 and/or Fig. 5.
In one embodiment, a kind of system controller for adjusting power converting system comprises: the first controller terminal, this the first controller terminal is associated with the first controller voltage and is coupled to the first transistor terminal of the first transistor, described the first transistor also comprises transistor seconds terminal and third transistor terminal, and described third transistor terminal is coupled to the armature winding of power converting system; Transistor seconds, this transistor seconds comprises the 4th transistor terminal, the 5th transistor terminal and the 6th transistor terminal, and described 5th transistor terminal is coupled to the first resistor; And the first clamper assembly, be coupled to described 4th transistor terminal.First clamper assembly is configured to receive the electric current be associated with described first controller voltage, at least based on the information generating reference voltage be associated with described electric current, and described 4th transistor terminal is biased to described reference voltage to generate supply power voltage at described 5th transistor terminal place.Such as, this system controller at least realizes according to Fig. 4 and/or Fig. 5.
In another embodiment, a kind of method for adjusting power converting system, this power converting system comprises and has the first controller terminal, the system controller of second controller terminal and the 3rd controller terminal, the method comprises: generate the first controller voltage be associated with described first controller terminal, described first controller terminal is coupled to the first transistor terminal of the first transistor, described the first transistor also comprises transistor seconds terminal and third transistor terminal, described transistor seconds terminal is coupled to the armature winding of described power converting system, generate the second controller voltage be associated with the second controller terminal being coupled to described third transistor terminal, and generate the 3rd controller voltage be associated with the 3rd controller terminal.The method also comprises: process the information be associated with described first controller voltage, described second controller voltage and described 3rd controller voltage, described first controller voltage equals the first voltage difference and described 3rd controller voltage sum, and described second controller voltage equals the second voltage difference and described 3rd controller voltage sum; Described first voltage difference is made to keep constant; And change described second voltage difference, with conducting or end described the first transistor and impact flows through the primary current of described armature winding.Such as, the method realizes according to Fig. 1, Fig. 2, Fig. 3 (a), Fig. 3 (b), Fig. 4 and/or Fig. 5.
In another embodiment, a kind of method for adjusting power converting system, this power converting system comprises the system controller with controller terminal, the method comprises: generate the controller voltage be associated with described controller terminal, described controller terminal is coupled to the first transistor terminal of the first transistor, described the first transistor also comprises transistor seconds terminal and third transistor terminal, and described third transistor terminal is coupled to the armature winding of described power converting system; Generate the electric current be associated with described controller voltage; At least based on the information be associated with described electric current, the 4th transistor terminal of transistor seconds is biased to reference voltage, described transistor seconds also comprises the 5th transistor terminal and the 6th transistor terminal, and described 6th transistor is coupled to resistor; And at least generate supply power voltage based on the information be associated with described reference voltage at described 5th transistor terminal place.Such as, the method at least realizes according to Fig. 4 and/or Fig. 5.
According to another embodiment, a kind of system controller for adjusting power converting system comprises: controller terminal, this controller terminal is associated with controller voltage and is coupled to the first transistor terminal of the first transistor, described the first transistor also comprises transistor seconds terminal and third transistor terminal, and described third transistor terminal is coupled to the armature winding of described power converting system; First resistor, this first resistor is coupled to described controller terminal; And clamper assembly, this clamper assembly is coupled to described first resistor.Clamper assembly is configured to receive from described first resistor the electric current be associated with described controller voltage, at least based on the information generating reference voltage be associated with described electric current, and described reference voltage is outputted to voltage regulator.Such as, this system controller at least realizes according to Fig. 4 and/or Fig. 5.
According to another embodiment, a kind of method for adjusting power converting system, this power converting system comprises the system controller with controller terminal, the method comprises: generate the controller voltage be associated with described controller terminal, described controller terminal is coupled to the first transistor terminal of the first transistor, described the first transistor also comprises transistor seconds terminal and third transistor terminal, and described third transistor terminal is coupled to the armature winding of described power converting system; Generate the electric current be associated with described controller voltage, described electric current flows through the resistor being coupled to described controller terminal; At least based on the information generating reference voltage be associated with described electric current; And described reference voltage is exported to voltage regulator.Such as, the method at least realizes according to Fig. 4 and/or Fig. 5.
Such as, the some or all of assemblies in each embodiment of the present invention individually and/or with at least another assembly combined be that one or more that utilize one or more component software, one or more nextport hardware component NextPort and/or software restraint assembly combine to realize.In another example, the some or all of assemblies in each embodiment of the present invention individually and/or with at least another assembly combined realize in one or more circuit, such as realize in one or more analog circuit and/or one or more digital circuit.In another example, each embodiment of the present invention and/or example can be combined.
Although describe specific embodiments of the invention, but it will be apparent to one skilled in the art that other embodiment being also present in described embodiment and being equal to.Therefore, will understand, the present invention not by the restriction of shown specific embodiment, but is only limited by the scope of claim.
Claims (11)
1., for adjusting a system controller for power converting system, this system controller comprises:
First controller terminal, this the first controller terminal is associated with the first controller voltage and is coupled to the first transistor terminal of the first transistor, described the first transistor also comprises transistor seconds terminal and third transistor terminal, and described third transistor terminal is coupled to the armature winding of power converting system;
Transistor seconds, this transistor seconds comprises the 4th transistor terminal, the 5th transistor terminal and the 6th transistor terminal, and described 5th transistor terminal is coupled to the first resistor; And
First clamper assembly, is coupled to described 4th transistor terminal;
Wherein, described first clamper assembly is configured to receive the electric current be associated with described first controller voltage, at least based on the information generating reference voltage be associated with described electric current, and described 4th transistor terminal is biased to described reference voltage to generate supply power voltage at described 5th transistor terminal place.
2. the system as claimed in claim 1 controller, wherein, described 4th transistor terminal is coupled to described first controller terminal by the second resistor.
3. the system as claimed in claim 1 controller, also comprises:
Second controller terminal, this second controller terminal is associated with second controller voltage and is coupled to described third transistor terminal; And
3rd controller terminal, the 3rd controller terminal is associated with the 3rd controller voltage.
4. system controller as claimed in claim 3, also comprises the second clamper assembly being coupled to described first controller terminal;
Wherein:
Described second controller voltage equals the second voltage difference and described 3rd controller voltage sum; And
Described transistor seconds is configured to change described second voltage difference, with conducting or end described the first transistor and impact flows through the primary current of described armature winding.
5. system controller as claimed in claim 4, wherein:
Described first controller voltage equals the first voltage difference and described 3rd controller voltage sum; And
Described second clamper assembly is configured to keep described first voltage difference to be no more than predetermined threshold.
6. the system as claimed in claim 1 controller, also comprises:
Second controller terminal, this second controller terminal is associated with second controller voltage;
3rd controller terminal, the 3rd controller terminal is associated with the 3rd controller voltage and is coupled to the first capacitor terminal of the first capacitor, and described capacitor also comprises the second capacitor terminal being coupled to described second controller terminal; And
First switch, is configured to reception first control signal and comprises the first switch terminal and second switch terminal, and described first switch terminal is coupled to described 4th transistor terminal, and described second switch coupling terminals is to described second controller terminal;
Wherein, if described system controller is configured to described 3rd controller voltage be less than threshold value, closed described first switch.
7. system controller as claimed in claim 6, also comprises:
Second switch, is configured to reception second control signal and is configured to the electric current be associated with described first controller voltage to conduct to described first clamper assembly;
Wherein, described system controller is configured to:
If described 3rd controller voltage is greater than described threshold value, then closed described second switch conducts to described first clamper assembly with the electric current be associated by described first controller voltage; And
If described 3rd controller voltage is less than described threshold value, then disconnect described second switch.
8., for adjusting a method for power converting system, this power converting system comprises the system controller with controller terminal, and the method comprises:
Generate the controller voltage be associated with described controller terminal, described controller terminal is coupled to the first transistor terminal of the first transistor, described the first transistor also comprises transistor seconds terminal and third transistor terminal, and described third transistor terminal is coupled to the armature winding of described power converting system;
Generate the electric current be associated with described controller voltage;
At least based on the information be associated with described electric current, the 4th transistor terminal of transistor seconds is biased to reference voltage, described transistor seconds also comprises the 5th transistor terminal and the 6th transistor terminal, and described 6th transistor is coupled to resistor; And
At least generate supply power voltage based on the information be associated with described reference voltage at described 5th transistor terminal place.
9., for adjusting a system controller for power converting system, this system controller comprises:
Controller terminal, this controller terminal is associated with controller voltage and is coupled to the first transistor terminal of the first transistor, described the first transistor also comprises transistor seconds terminal and third transistor terminal, and described third transistor terminal is coupled to the armature winding of described power converting system;
First resistor, this first resistor is coupled to described controller terminal; And
Clamper assembly, this clamper assembly is coupled to described first resistor;
Wherein, described clamper assembly is configured to receive from described first resistor the electric current be associated with described controller voltage, at least based on the information generating reference voltage be associated with described electric current, and described reference voltage is outputted to voltage regulator.
10. system controller as claimed in claim 9, wherein:
Described voltage regulator comprises transistor seconds, and described transistor seconds comprises the 4th transistor terminal, the 5th transistor terminal and the 6th transistor terminal, and described 6th transistor terminal is coupled to the second resistor;
Described 4th transistor terminal is coupled to described clamper assembly; And
Described clamper assembly is configured to described 4th transistor terminal is biased to described reference voltage to generate supply power voltage at described 5th transistor terminal place.
11. 1 kinds for adjusting the method for power converting system, this power converting system comprises the system controller with controller terminal, and the method comprises:
Generate the controller voltage be associated with described controller terminal, described controller terminal is coupled to the first transistor terminal of the first transistor, described the first transistor also comprises transistor seconds terminal and third transistor terminal, and described third transistor terminal is coupled to the armature winding of described power converting system;
Generate the electric current be associated with described controller voltage, described electric current flows through the resistor being coupled to described controller terminal;
At least based on the information generating reference voltage be associated with described electric current; And
Described reference voltage is exported to voltage regulator.
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