CN110134026A - A kind of low power consumpting controling circuit for intelligent appliance - Google Patents
A kind of low power consumpting controling circuit for intelligent appliance Download PDFInfo
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- CN110134026A CN110134026A CN201910492131.9A CN201910492131A CN110134026A CN 110134026 A CN110134026 A CN 110134026A CN 201910492131 A CN201910492131 A CN 201910492131A CN 110134026 A CN110134026 A CN 110134026A
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
Abstract
A kind of low power consumpting controling circuit for intelligent appliance, including a rectification module, one Isobarically Control chip, one decompression transformation module and a load compensation module, the rectification module receives an alternating current and exports one first direct current power, one drain end of the Isobarically Control chip couples the rectification module, the decompression transformation module couples are in the rectification module, the power end of the Isobarically Control chip, the decompression transformation module receives first direct current power and exports one second direct current power after being depressured conversion and supply electricity to the Isobarically Control chip by the power end, and it allows the Isobarically Control chip to sample the power end as a feedback signal and adjusts second direct current power, the load compensation module is electrically connected the power end, the load compensation module provides an offset voltage to promote the load regulation generated based on an external loading.
Description
Technical field
The present invention relates to a kind of control circuit more particularly to a kind of low power consumpting controling circuits for intelligent appliance.
Background technique
Intelligent appliance refers to the various household appliances for having intelligent characteristic, from hardware structure for, in addition to existing and family
It is typical such as wireless communication module and sensing it is still necessary to be arranged to provide the module of intelligent function except the relevant module of Electricity Functional
Device module etc..However, when these modules are additionally arranged, for the angle that power supply controls, usual palpus consideration two large problems: one
For the output of stable power；Another is stand-by power consumption.
Traditional power control circuit has consisted essentially of a rectification unit, a control unit and a pressure unit,
In, which includes a feedback end, which can obtain the pressure unit and export to the direct current power of load, thus
It adjusts to reach the purpose of constant voltage output；On the other hand, the power supply of the control unit is from being set to inside the control unit
Junction gate fet (Junction gate field-effect transistor, JFET), however provided by JFET
The power supply of control unit whole must be by bus and auxiliary winding, other than the complexity of circuit is high, due to JFET's
There are High Pressure Differences at both ends, will lead to the high stand-by power consumption of the control unit.Therefore, there are improved necessity for traditional technology.
Summary of the invention
It is a primary object of the present invention to solve the problems, such as to be currently used for the control circuit of intelligent appliance, there are high power consumptions.
In order to achieve the above object, the present invention provides a kind of low power consumpting controling circuit for intelligent appliance, it is characterised in that packet
It includes:
One rectification module receives an alternating current and exports one first direct current power；
One Isobarically Control chip, including a drain end, a ground terminal and a power end, the drain end couple the rectification mould
Block；
One decompression transformation module is coupled to the power end and the ground terminal of the rectification module, the Isobarically Control chip,
The decompression transformation module receives first direct current power and exports one second direct current power after being depressured conversion and pass through the power end
Supply electricity to the Isobarically Control chip, and allow the Isobarically Control chip must sample the power end adjusted as a feedback signal this
Two direct current powers；And
One is electrically connected the load compensation module of the power end, which provides an offset voltage and be based on being promoted
One external loading and the load regulation generated.
In one embodiment, which includes a freewheeling diode, one and the freewheeling diode coupled in parallel
Output capacitance and one be coupled to inductance between the freewheeling diode and the output capacitance.
In one embodiment, a cathode of the freewheeling diode is coupled to one end of the inductance and forms a first node,
One anode of the freewheeling diode is coupled to the output capacitance, and the other end of the inductance is coupled to the output capacitance and forms one
Two nodes, the first node are coupled to the ground terminal, which is coupled to the power end of the Isobarically Control chip.
In one embodiment, which further includes that a bootstrap diode and one are coupled to the bootstrap diode
Power supply capacitor, which includes being formed between an anode for being coupled to the second node and one and the power supply capacitor
The cathode of one third node.
In one embodiment, which further includes the current sense terminal of one and first node coupling.
In one embodiment, a detecting resistance is coupled between the current sense terminal and the first node.
In one embodiment, which further includes a feedback end, the feedback end and the decompression transformation module it
Between be coupled with an at least feedback resistance, to adjust second direct current power.
In one embodiment, which further includes a control terminal, which is optionally coupled to the electricity
Source or the ground terminal are to adjust second direct current power.
In one embodiment, which includes a power end sampling module and a regulation module, the power supply
Hold the power end of sampling module and Isobarically Control chip coupling one power end sampled signal of output to the regulation module, the tune
Control module receives a reference signal and the power end sampled signal exports a load compensation signal and is coupled to the power end.
In one embodiment, the regulation module include an error amplifier and one regulation unit, the one of the error amplifier
First input end and the power end sampling module couple, and an output end of the error amplifier and the regulation unit couple, the tune
Control unit receives second input terminal of the reference signal and the feedback load compensation signal to the error amplifier.
In one embodiment, which includes:
One first resistor, a first end of the first resistor are coupled to second input terminal of the error amplifier and are formed
One fourth node；
One second resistance, a first end of the second resistance are coupled to a second end of the first resistor and form an input
5th node of one reference voltage；
One first voltage-controlled current source, the input terminal for the output end for being coupled to the error amplifier including one, one are coupled to
The control terminal of 5th node and one be coupled to the second resistance a second end output end；And
One second voltage-controlled current source is coupled between the power end and second input terminal of the error amplifier.
In one embodiment, which includes:
One 3rd resistor is coupled between the first input end of the error amplifier and the power end；And
One the 4th resistance is coupled to one end of the 3rd resistor and forms one the 6th node, the other end of the 4th resistance
Ground connection.
In one embodiment, which further includes a selection end, which selects different this second straight
The output of galvanic electricity power.
In one embodiment, the selection end and the load compensation module couples.
In one embodiment, which further comprises:
One logic controller；
One couples the driver of the logic controller；
One couples the power switch of the driver；And
One comparator, the comparator have one to be coupled to the first input end of the load compensation module, an input one first
Second input terminal of reference voltage and one be coupled to the logic controller output end.
In one embodiment, the voltage value of second direct current power is between 2.5V between 3.3V.
The present invention also provides a kind of intelligent appliance systems, comprising:
One alternating current is converted to a main driving direct current power by one main drive circuit module, the main drive circuit module；
One is coupled to the main drive module and inputs the electrical appliance module of the main driving direct current power；
One control circuit as described above, the control circuit is according to the exchange electricity output second direct current power；And
One intelligent object, the intelligent object is using second direct current power come work.
In one embodiment, which is a wireless signal receiver or a sensor.
In one embodiment, the voltage value of second direct current power is between 2.5V between 5V.
The present invention utilizes the second direct current power of decompression transformation module output directly as the power supply of the Isobarically Control chip
Source, rather than by JFET, therefore solve the problems, such as high stand-by power consumption；Meanwhile the present invention is provided with the load compensation module,
The load compensation module is the voltage for sampling the power end, i.e., reaches constant pressure as feedback signal by the voltage of the power end
It adjusts, since the sampling back voltage of the power end is the reference signal relative to the ground terminal of the Isobarically Control chip,
Without sampling hold circuit is arranged, the complexity of circuit structure is reduced.
Detailed description of the invention
" Fig. 1 " is the circuit diagram of the low power consumpting controling circuit of one embodiment of the invention.
" Fig. 2 " is the circuit diagram of the load compensation module in one embodiment of the invention.
" Fig. 3 " is the circuit diagram of the Isobarically Control chip in another embodiment of the present invention.
" Fig. 4 " is the load regulation variation diagram of one embodiment of the invention and a comparative example
" Fig. 5 ", the stand-by power consumption for one embodiment of the invention and a comparative example compare figure.
" Fig. 6 " is the circuit diagram of the comparative example of " Fig. 5 ".
" Fig. 7 " is the circuit diagram of the low power consumpting controling circuit of further embodiment of this invention.
" Fig. 8 A " and " Fig. 8 B " is the circuit diagram of the low power consumpting controling circuit of yet another embodiment of the invention.
" Fig. 9 " is the intelligent appliance system schematic diagram of one embodiment of the invention.
Specific embodiment
Detailed description for the present invention and technology contents, now just cooperation schema is described as follows:
The invention discloses a kind of low power consumpting controling circuits for intelligent appliance, in the examples below, the intelligent appliance
It is given an example with intelligent lighting, such as Intelligent luminous diode artistic lamp, please refers to " Fig. 1 ", be the low of one embodiment of the invention
The circuit diagram of power control circuit, including a rectification module 10, an Isobarically Control chip 20, a decompression transformation module 30 with
And a load compensation module 40, the rectification module 10 receive an alternating current Vac, in one embodiment, alternating current Vac is outside one
Portion's alternating current.The Isobarically Control chip 20 draws poles D, a ground terminal G and a power end VCC including one.The rectification module 10 is right
Alternating current Vac exports one first direct current power DC1 after being rectified, and in the present embodiment, which includes a rectification
Unit 11 and one be coupled to the rectification unit 11 input capacitance 12, which as shown in the figure can be whole for a bridge-type
Flow device.The coupling of two or more components described herein can direct electric connection between component and component, Huo Zhewei
The electric connection formed between component and component there are also other assemblies.
This of the Isobarically Control chip 20 draws poles D and couples the rectification module 10 to receive first direct current power DC1, should
Decompression transformation module 30 also couples the rectification module 10, which is depressured after receiving first direct current power DC1
It converts and exports one second direct current power DC2 to an external loading, in addition, second direct current power DC2 is fed back to the constant pressure control
The power end VCC of coremaking piece 20 powers to the Isobarically Control chip 20.In one of present invention embodiment, second direct current
The voltage value of power DC2 is less than 5V, in one embodiment, the voltage value of second direct current power between 2.5V between 5V, such as
For 3.3V or 2.5V.
The decompression transformation module 30 includes a freewheeling diode 31, an output capacitance 32, an inductance 33, a bootstrap diode
34 and a power supply capacitor 35, a cathode 31a of the freewheeling diode 31 are coupled to one end 33a of the inductance 33 and form one the
One node N1, an anode 31b of the freewheeling diode 31 be coupled to the Isobarically Control chip 20 this draw poles D, the inductance 33
Other end 33b be coupled to the output capacitance 32 and form a second node N2, first node N1 is coupled to ground terminal G,
Second node N2 is coupled to the power end VCC of the Isobarically Control chip 20, which is coupled to two pole of bootstrapping
Pipe 34, the bootstrap diode 34 are coupled between the anode 34b and one of second node N2 and the power supply capacitor 35 including one
The cathode 34a of a third node N3 is formed, which is coupled between the freewheeling diode 31 and the output capacitance 32.
" Fig. 2 " is please referred to, is the circuit diagram of the load compensation module in one embodiment of the invention, the load compensation
Module 40 includes the regulation of a power end sampling module 40a and one module 40b, the power end sampling module 40a and the constant pressure control
The power end VCC of coremaking piece 20 is coupled, and a power end sampled signal S is exported to regulation module 40b, the regulation module
40b receives a reference signal and the power end sampled signal S and exports a load compensation signal to power end VCC, herein should
Reference signal is Vref.In the present embodiment, which includes that an error amplifier 41 and one regulates and controls unit,
The regulation unit includes a first resistor 42, a second resistance 43, one first voltage-controlled current source 44 and one second voltage controlled current
Source 45, the power end sampling module 40a include a 3rd resistor 46 and one the 4th resistance 47, which includes one
First input end 41a, one second input terminal 41b and an output end 41c, the first resistor 42 include a first end 42a and
One second end 42b, the second resistance 43 include an a first end 43a and second end 43b, which includes
One input terminal 44a, a control terminal 44b and an output end 44c.In the present embodiment, which is set to this
In Isobarically Control chip 20, in other embodiments, which be may be disposed at outside the Isobarically Control chip 20.
The first input end 41a of the error amplifier 41 and the second input terminal 41b and power end sampling module 40a
Coupling, the output end 41c of the error amplifier 41 and the regulation unit couple, which receives the reference signal and return
Award second input terminal 41b of the load compensation signal to the error amplifier 41.
The first end 42a of the first resistor 42 is coupled to the second input terminal 41b and forms a fourth node N4, this
The second end 42b of one resistance 42 is coupled to the first end 43a of the second resistance 43 and forms one the 5th node N5, the second electricity
The second end 43b ground connection of resistance 43, the 5th node N5 input have the reference voltage Vref.The 3rd resistor 46 and the 4th electricity
Hinder 47 first input end 41a concatenated with one another and that the error amplifier 41 is coupled to from one the 6th node N6 between the two.This
In embodiment, the voltage of first input end 41a is VA, and the voltage of second input terminal 41b is VB, wherein the fourth node
An output end of the N4 (i.e. VB) as the load compensation module 40, i.e., for exporting the load compensation signal.
Be the Isobarically Control chip circuit schematic diagram in another embodiment of the present invention please continue to refer to " Fig. 3 ", " Fig. 3 " into
One step shows a detailed configuration of the Isobarically Control chip 20, and in the present embodiment, which further has
An one current sense terminal CS and control terminal SEL, and the Isobarically Control chip 20 further includes a logic controller 21, a driver
22, a power switch 23, a hysteresis comparator 24, a current sense unit 25, a lead-edge-blanking (Leading-Edge
Blanking, LEB) unit 26, a high voltage unit 27, an oscillator 28 and an at least protection location, the protection location can wrap
An over-temperature protection unit 29 and an overvoltage and overload protection unit 210 are included, in addition, into one in the Isobarically Control chip 20
Step is provided with the load compensation module 40, which includes the regulation mould of a power end sampling module 40a and one
Block, which includes an error amplifier 41 and regulation a unit 40c, the power end sampling module 40a includes one the
One switch 401a, a second switch 402a and a plurality of resistance 403a, a first input end 41a of the error amplifier 41 and
The one second input terminal 41b and power end sampling module 40a is coupled, an output end 41c of the error amplifier 41 and the regulation
Unit 40c coupling, the regulation unit 40c receive a reference signal Vref and the feedback load compensation signal to the error amplifier
41 second input terminal 41b.The load compensation module 40 of related the present embodiment, can refer to the configuration of " Fig. 2 ", also can be used
Other configurations.
21 output control signal of logic controller controls the power switch 23 to the driver 22, in the present embodiment
In, which is a metal oxide semiconductcor field effect transistor (Metal Oxide Semiconductor
Field-Effect Transistor, MOSFET), but not limited to this, which also can be one or more three
Polar body.One first input end 24a of the hysteresis comparator 24 is coupled between a power end VCC and the high voltage unit 27, should
The one second input terminal 24b input one of hysteresis comparator 24 is between 2.6V to the reference voltage Vref between 3V, and the sluggishness is relatively
One output end 24c of device 24 is exported to the logic controller 21.The current sense unit 25 be coupled to current sense terminal CS and
Between the logic controller 21, and with the lead-edge-blanking unit 26 couple, the oscillator 28, the over-temperature protection unit 29 and should
Overvoltage and overload protection unit 210 are coupled to the logic controller 21.
In the present embodiment, which is a junction gate fet (Junction gate field-
Effect transistor, JFET), upon start up, the constant pressure control first can be supplied electricity to by the JFET in the Isobarically Control chip 20
Coremaking piece 20, after powering on, second direct current power DC2 is gradually increasing, after rising to a threshold value, the junction type gate field-effect
Transistor will turn off, and supply electricity to the Isobarically Control chip 20 by second direct current power DC2, in the present embodiment, the threshold value
For 2.9V.In addition, when overload or short-circuit protection, the second direct current power DC2 decline, and will be switched to and be imitated by the junction gate field
Transistor is answered to supply electricity to the Isobarically Control chip 20, at this point, the supply voltage of the junction gate fet is less than normal shape
Second direct current power DC2 when state；When overload or short-circuit protection releases, which rises, and will be switched to
The Isobarically Control chip 20 is supplied electricity to by second direct current power DC2, and turns off junction gate fet power supply, to subtract
Few stand-by power consumption.
From the above, second direct current power DC2 is gradually increasing more than after the threshold value, the junction gate fet
Shutdown, the freewheeling diode 31 is connected at this time, which charges to the power supply capacitor 35, the Isobarically Control core
Piece 20 operates required electric power and is provided by the second direct current power DC2；When junction gate fet conducting, the Isobarically Control
Chip 20 operates required electric power and is provided by the power supply capacitor 35.In the present invention, which samples power end VCC
Partial pressure, cooperate the bootstrap diode 34 be formed by current loop adjust output voltage it is constant, i.e. second direct current power DC2
It is constant.Furthermore, it is understood that the present invention is relative to the Isobarically Control due to sampling power end VCC, the feedback signal of sampling
The ground terminal G of chip 20, therefore the feedback signal sampled is reference signal, without sampling hold circuit, the perseverance is arranged
Voltage-controlled coremaking piece 20 can directly and constantly receive feedback signal of the sampling from power end VCC.
In addition to adjusting the second direct current power DC2 with up to other than constant, since the present invention is be applied to intelligent appliance low
Power control circuit, the especially less than load of the low-voltage of 5V, for the load higher than 5V, poor adjustment of load
Rate will cause bigger negative effect.Such as institute's palpus voltage of typical microcontroller (MCU) is 3.3V, if input voltage is more than
3.6V will puncture the microcontroller, if input voltage is lower than 3.0V, which will be closed, therefore in full-load range, palpus
3.0V is maintained between 3.6V.To solve this problem, the load compensation module 40 is arranged in the present invention, to reduce adjustment of load
Rate.
Illustrated with the embodiment of " Fig. 1 " cooperation " Fig. 2 ", there are relationships below for the electric current of " Fig. 2 " circuit: I2=I1+
I0 (formula 1), I0 are fixed current, and the voltage of second direct current power DC2 is Vout, and there are following relationship by Vout: Vout
=K*VA-Vf1+Vf2 (formula 2), wherein K is the enlargement ratio of error amplifier, is a fixed value, and VA is the first input end
The input voltage of 41a, Vf1 is the pressure drop of the freewheeling diode 31, and Vf2 is the pressure drop of the bootstrap diode 34.Vf1 is with load
Curent change and change, when load current increase when, Vf1 also increases, and Vf2 is fixed value；When load current increases, this second
Direct current power DC2 decline, and the voltage of power end VCC also declines therewith, so that first input of the error amplifier 41
The input voltage VA decline of 41a is held, and the voltage Veao of the output end 41c of the error amplifier 41 output also declines, into one
The electric current I1 on step ground, first voltage-controlled current source 44 output rises.According to formula 1, I0 is fixed current, therefore when I1 rises, I2
Also and then rising, and according to formula 2, Vref is to fix, therefore work as I2 and increase, and VB also increases, and VB=VA, so VA also increases, because
This provides compensating action to Vout, offsets the pressure drop of the freewheeling diode 31, the voltage Vout of second direct current power DC2 is made to become
It is close constant.
" Fig. 4 " is please referred to, is the load regulation variation diagram of one embodiment of the invention and a comparative example, lines 4A is setting
When the load compensation module 40, at different output current Iout, the variation of output voltage Vout；And lines 4B is to be not provided with
When the load compensation module 40, at different output current Iout, the variation of output voltage Vout.By " Fig. 4 ", it is apparent that
In the case where identical output electric current Iout, the variation of lines 4A is small compared to lines 4B；In other words, have and load benefit is set
Repay the lines 4A of module 40, the variation of output voltage Vout compared to the lines 4B of the not set load compensation module 40 be it is small,
Lines 4A presents preferable load regulation.If the load compensation module 40 is not provided with, when output electric current Iout is held
When continuous rising, output voltage Vout will be less than 3V, and microcontroller is caused to be closed；And after the load compensation module 40 is added, in addition to
Except output voltage Vout variation is small, even if output voltage Vout is also positively retained at microcontroller in the case where full load
In operating voltage range, microcontroller normal operation is enabled.For the present embodiment, the operating voltage range of microcontroller be 3V extremely
3.6V." Fig. 5 " is please referred to, compares figure for the stand-by power consumption of one embodiment of the invention and a comparative example, lines 5A is of the invention
The stand-by power consumption of low power consumpting controling circuit；And lines 5B is the stand-by power consumption of conventional control circuit, hence it is evident that as it can be seen that of the invention is low
Stand-by power consumption of the power control circuit within the scope of total pressure is respectively less than 20mW, and the maximum stand-by power consumption compared to traditional structure is
104mW, stand-by power consumption reduce 5 times.The circuit diagram of comparative example in " Fig. 5 " please refers to " Fig. 6 ", and control circuit 90 includes
One rectification module 91, a chip 92, one first feedback resistance Rb1, one second feedback resistance Rb2, a capacitor 93, an inductance 94 with
And a diode 95, an alternating current (AC IN) input the circuit one direct current of output after 90s (DC OUT), " Fig. 6 " is tradition control
The framework of circuit processed is powered by the JFET normality in the chip 92, and the both ends of JFET are electrically connected with Drain and VJ respectively,
Wherein, VJ is generally pinch-off voltage size, so the both ends of JFET are there are higher voltage difference, therefore low efficiency, power consumption is big, very
Difficulty meets super-low standby power consumption requirement.
" Fig. 7 " is please referred to, is the circuit diagram of the low power consumpting controling circuit of further embodiment of this invention, the present embodiment base
In the circuit of " Fig. 1 " further comprise an at least feedback resistance, one first feedback resistance Rfb1 and one second as shown in the figure
Feedback resistance Rfb2, the feedback resistance be coupled to the Isobarically Control chip 20 a feedback end FB and the decompression transformation module 30 it
Between, by the setting of the feedback resistance and its variation of resistance value, to adjust the voltage value of second direct current power DC2.Yu Ben
In embodiment, the range of the voltage value of second direct current power DC2 is 2.5V between 5V.Referring again to " Fig. 8 A " and " figure
8B ", be yet another embodiment of the invention low power consumpting controling circuit circuit diagram, the present embodiment be based on " Fig. 1 " circuit into
One step includes a detecting resistance Rs, and detecting resistance Rs is coupled between first node N1 and current sense terminal CS；And
In power end sampling module 40a by the Isobarically Control chip 20 of " Fig. 3 ", first switch 401a, the second switch
The configuration of 402a and resistance, for Isobarically Control chip 20 control terminal SEL be optionally coupled to power end VCC or
Ground terminal G is to adjust second direct current power DC2, when control terminal SEL is coupled to power end VCC, second direct current
Electric power DC2 is 3.3V；When control terminal SEL is coupled to ground terminal G, which is 5V.In the present invention,
Reach the voltage value of adjustment second direct current power DC2, it is outer except through configuration shown in " Fig. 7 ", it also can be by feedback electricity
Resistance is directly arranged in the Isobarically Control chip 20, in this way, needn't in addition be arranged first feedback resistance Rfb1, this
Two feedback resistance Rfb2 and feedback end FB are conducive to reduce the component cost of chip periphery circuit in this way.
Referring again to " Fig. 9 ", an intelligent appliance system 100, including a main drive circuit module 200, an electric appliance mould are disclosed
One alternating current Vac is converted to a main driving by block 300, an intelligent object 400 and a control circuit, the main drive module 300
Direct current power, the main driving direct current power input the electrical appliance module 300 to supply the required electric power of running, which uses
As described above, for exporting second direct current power DC2 according to alternating current Vac, second direct current power DC2 inputs the intelligence
Energy module 400 is to supply the required electric power of running, wherein the intelligent object 400 can sense for a wireless signal receiver or one
Device.
In conclusion the present invention is using the second direct current power of decompression transformation module output directly as the Isobarically Control core
The power supply source of piece, rather than by JFET, therefore solve the problems, such as high stand-by power consumption；Meanwhile the present invention is in the Isobarically Control
Chip is provided with the load compensation module, which is the voltage for sampling the power end, that is, passes through the power end
Voltage reaches the adjusting of constant pressure as feedback signal, since the voltage of the power end is the ground connection relative to the Isobarically Control chip
The reference signal at end, therefore do not have to setting sampling hold circuit, reduce the complexity of circuit structure.On the whole, of the invention
It is suitble to the super-low standby power consumption application lower than 5V output voltage.
Claims (19)
1. a kind of low power consumpting controling circuit for intelligent appliance, characterized by comprising:
One rectification module receives an alternating current and exports one first direct current power；
One Isobarically Control chip, including a drain end, a ground terminal and a power end, the drain end couple the rectification module；
One decompression transformation module is coupled to the power end and the ground terminal of the rectification module, the Isobarically Control chip, the drop
Pressure conversion module receives first direct current power and exports one second direct current power after being depressured conversion and powered by the power end
Give the Isobarically Control chip, and allow the Isobarically Control chip that must sample the power end that this is adjusted as a feedback signal is second straight
Galvanic electricity power；And
One is electrically connected the load compensation module of the power end, which provides an offset voltage and be based on outside one with being promoted
Section load and the load regulation generated.
2. control circuit as described in claim 1, which is characterized in that the decompression transformation module includes a freewheeling diode, one
And the freewheeling diode coupled in parallel output capacitance and one be coupled to electricity between the freewheeling diode and the output capacitance
Sense.
3. control circuit as claimed in claim 2, which is characterized in that a cathode of the freewheeling diode is coupled to the inductance
One end and one first node of formation, an anode of the freewheeling diode are coupled to the output capacitance, the other end coupling of the inductance
A second node is formed in the output capacitance, which is coupled to the ground terminal, which is coupled to the constant pressure
Control the power end of chip.
4. control circuit as claimed in claim 3, which is characterized in that the decompression transformation module further include a bootstrap diode with
And one be coupled to the bootstrap diode power supply capacitor, the bootstrap diode include an anode for being coupled to the second node and
The cathode of a third node is formed between one and the power supply capacitor.
5. control circuit as claimed in claim 3, which is characterized in that the Isobarically Control chip further includes one and the first node
The current sense terminal of coupling.
6. control circuit as claimed in claim 5, which is characterized in that be coupled between the current sense terminal and the first node
One detecting resistance.
7. control circuit as described in claim 1, which is characterized in that the Isobarically Control chip further includes a feedback end, this is anti-
It is coupled with an at least feedback resistance between feedback end and the decompression transformation module, to adjust second direct current power.
8. control circuit as described in claim 1, which is characterized in that the Isobarically Control chip further includes a control terminal, the control
End processed is optionally coupled to the power end or the ground terminal to adjust second direct current power.
9. control circuit as described in claim 1, which is characterized in that the load compensation module includes a power end sampling module
And a regulation module, the power end coupling output one power end sampling of the power end sampling module and the Isobarically Control chip
Signal is to the regulation module, which receives a reference signal and the power end sampled signal exports a load compensation signal
It is coupled to the power end.
10. control circuit as claimed in claim 9, which is characterized in that the regulation module includes that an error amplifier and one adjust
Unit is controlled, a first input end of the error amplifier and the power end sampling module couple, an output of the error amplifier
End is coupled with the regulation unit, which receives the reference signal and the feedback load compensation signal to the error amplifier
The second input terminal.
11. control circuit as claimed in claim 10, which is characterized in that the regulation unit includes:
One first resistor, a first end of the first resistor are coupled to second input terminal of the error amplifier and form one the
Four nodes；
One second resistance, a first end of the second resistance are coupled to a second end of the first resistor and form one ginseng of an input
Examine the 5th node of voltage；
One first voltage-controlled current source, the input terminal for the output end for being coupled to the error amplifier including one, one be coupled to this
The control terminal of five nodes and one be coupled to the second resistance a second end output end；And
One second voltage-controlled current source is coupled between the power end and second input terminal of the error amplifier.
12. control circuit as claimed in claim 10, which is characterized in that the power end sampled signal includes:
One 3rd resistor is coupled between the first input end of the error amplifier and the power end；And
One the 4th resistance is coupled to one end of the 3rd resistor and forms one the 6th node, the other end ground connection of the 4th resistance.
13. control circuit as described in claim 1, which is characterized in that the Isobarically Control chip further includes a selection end, the choosing
It selects end and selects different second direct current power output.
14. control circuit as claimed in claim 13, which is characterized in that the selection end and the load compensation module couples.
15. control circuit as described in claim 1, which is characterized in that the Isobarically Control chip further comprises:
One logic controller；
One couples the driver of the logic controller；
One couples the power switch of the driver；And
One comparator, the comparator have one to be coupled to the first input end of the load compensation module, one first reference of an input
Second input terminal of voltage and one be coupled to the logic controller output end.
16. control circuit as described in claim 1, which is characterized in that the voltage value of second direct current power between 2.5V extremely
Between 5V.
17. a kind of intelligent appliance system, comprising:
One alternating current is converted to a main driving direct current power by one main drive circuit module, the main drive circuit module；
One is coupled to the main drive module and inputs the electrical appliance module of the main driving direct current power；
Just like the control circuit of any one of claim 1 to 16, the control circuit is according to the exchange electricity output second direct current
Power；And
One intelligent object, the intelligent object is using second direct current power come work.
18. intelligent appliance system as claimed in claim 17, which is characterized in that the intelligent object is a wireless signal receiver
An or sensor.
19. intelligent appliance system as claimed in claim 18, which is characterized in that the voltage value of second direct current power between
2.5V is between 5V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910492131.9A CN110134026A (en) | 2019-06-06 | 2019-06-06 | A kind of low power consumpting controling circuit for intelligent appliance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910492131.9A CN110134026A (en) | 2019-06-06 | 2019-06-06 | A kind of low power consumpting controling circuit for intelligent appliance |
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| CN110134026A true CN110134026A (en) | 2019-08-16 |
Family
ID=67580687
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910492131.9A Pending CN110134026A (en) | 2019-06-06 | 2019-06-06 | A kind of low power consumpting controling circuit for intelligent appliance |
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| CN110429701A (en) * | 2019-09-11 | 2019-11-08 | 芯好半导体(成都)有限公司 | A kind of linear energy recovery circuit, recovery method and electric device |
| CN111049384A (en) * | 2019-12-31 | 2020-04-21 | 上海晶丰明源半导体股份有限公司 | Low-power-consumption power conversion circuit for control panel |
| CN111082675A (en) * | 2019-12-31 | 2020-04-28 | 上海晶丰明源半导体股份有限公司 | Low-power-consumption power conversion circuit for control panel |
| CN111555643A (en) * | 2020-06-05 | 2020-08-18 | 上海晶丰明源半导体股份有限公司 | Switching power supply controller, switching power supply system and power supply method of switching power supply system |
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