CN206850679U - One kind realizes Zero-power-consumption standby switch power integrated circuit - Google Patents
One kind realizes Zero-power-consumption standby switch power integrated circuit Download PDFInfo
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- CN206850679U CN206850679U CN201720397450.8U CN201720397450U CN206850679U CN 206850679 U CN206850679 U CN 206850679U CN 201720397450 U CN201720397450 U CN 201720397450U CN 206850679 U CN206850679 U CN 206850679U
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- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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Abstract
The utility model discloses one kind to realize Zero-power-consumption standby switch power integrated circuit, including a zero-power controller for being used for controlling switch power supply.The zero-power controller includes charge coupling circuit, zero-power microprocessor and zero-power voltage-regulating circuit, and AC power input sequentially enters zero-power voltage-regulating circuit, zero-power microprocessor through charge coupling circuit.
Description
Technical field
The utility model belongs to microelectronics technology, and in particular to one kind realizes the integrated electricity of Zero-power-consumption standby Switching Power Supply
Road.
Background technology
Switching Power Supply is due to efficiency high, and cost is low, small volume, it is in light weight the advantages that almost adopted by all electrical equipments
With.But because the traditional startup power supply of Switching Power Supply is all the resistance starting circuit (such as Fig. 1) using power consumption, the electric capacity of power consumption
Start-up circuit (such as Fig. 2), switching power source chip absorb electric current from internal power MOSFET drain and the charging of Vdd storage capacitors are opened
Circuit (such as Fig. 3) and high voltage depletion mode FET start-up circuit (such as Fig. 4) are moved to realize the startup of Switching Power Supply.So it
Before Switching Power Supply starts or after starting, or even due to some need that they are also consumed by electricity when power supply is stopped completely
Can, not only influence power supply efficiency, and make power standby power consumption can not possibly very little, unlikely accomplish complete zero-power or
Low power consumption standby.Because Switching Power Supply does not accomplish Zero-power-consumption standby, cause the various electric equipments using such Switching Power Supply
Zero-power-consumption standby is not accomplished.
Utility model content
In order to solve the technical problem that stand-by power consumption can not be reduced to zero-power by current Switching Power Supply, the utility model carries
One kind has been supplied to realize Zero-power-consumption standby switch power integrated circuit,
Including a zero-power controller for being used for controlling switch power supply.
The zero-power controller includes charge coupling circuit, zero-power microprocessor and zero-power voltage-regulating circuit,
AC power input sequentially enters zero-power voltage-regulating circuit, zero-power microprocessor through charge coupling circuit.
A kind of scheme in the utility model, the input of alternating current electric charge only can use an electric capacity C1, AC power first
End is connected to the one pair of which contact in zero-power controller in two pairs of metal-oxide-semiconductors by electric capacity C1, and another pair metal-oxide-semiconductor contact is empty
Put, the ground of the direct connecting to neutral power eonsumption controller in the second end of AC power, the high-voltage rectifying of Switching Power Supply only uses a diode
(it is N-terminal corresponding to the second end when first end is L ends；It is L ends corresponding to the second end when first end is N-terminal)；
When switching on power, because Vdd voltage is not yet established, two pairs of metal-oxide-semiconductors are cut-off state, just the half of alternating current
During week, AC power first end positive charge flows into the p-type active and n of metal-oxide-semiconductor M1 in zero-power controller by electric capacity C1
Trap, Vdd storage capacitor C3 are then flowed into, eventually pass back to the end of AC power second, charged to Vdd storage capacitors C3；
Between the negative half-cycle of alternating current, AC power first end negative electrical charge is flowed into zero-power controller by electric capacity C1
Metal-oxide-semiconductor M3 n-type active area and p traps, is then return to the end of AC power second；
Electric capacity C1 is charged by way of controlling metal-oxide-semiconductor M3 and metal-oxide-semiconductor M4 to end to open to electric capacity C3, to electric capacity C1
Electric capacity C3 charging is disconnected by way of metal-oxide-semiconductor M3 and metal-oxide-semiconductor M4 conductings are parallel to AC power both ends；
When zero-power controller controls metal-oxide-semiconductor M3 and metal-oxide-semiconductor M4 from the case that cut-off switchs to conducting, M3 and M4 drain electrode
Voltage only drops to 0V from Vdd；Or control metal-oxide-semiconductor M3 and metal-oxide-semiconductor M4 switchs to end from conducting, drain voltage only rises to from 0V
Vdd。
Further, the utility model another kind scheme, the utility model includes electric capacity C1 and electric capacity C2 simultaneously, from exchange
Both ends of power, by two electric capacity C1 of charge coupling circuit, C2 is connected respectively in zero-power controller two and metal-oxide-semiconductor is connect
Point, when switching on power, because Vdd voltage is not yet established, two pairs of metal-oxide-semiconductors are cut-off state, in the positive half period of alternating current
Between, AC power first end positive charge flows into the p-type active and n traps of metal-oxide-semiconductor M1 in zero-power controller by electric capacity C1, so
Vdd storage capacitor C3 are flowed into afterwards, then p traps and n-type active area through metal-oxide-semiconductor M4 eventually pass back to the end of AC power second, are stored up to Vdd
Can electric capacity C3 chargings；
Between the negative half-cycle of alternating current, AC power second is rectified electric charge and flowed into by electric capacity C2 in zero-power controller
Metal-oxide-semiconductor M2 p-type active and n traps, Vdd storage capacitor C3 are then flowed into, then p traps and n-type active area through metal-oxide-semiconductor M3 return to
AC power first end, charged to Vdd storage capacitors C3；
To C1, the mode that C2 is connected in series through control metal-oxide-semiconductor M3 and metal-oxide-semiconductor M4 cut-offs charges to open to electric capacity C3, to C1,
C2 is connected in series through metal-oxide-semiconductor M3 and metal-oxide-semiconductor M4 conductings and is parallel to the mode at AC power both ends to disconnect electric capacity C3 charging；
When zero-power controller controls metal-oxide-semiconductor M3 and metal-oxide-semiconductor M4 from the case that cut-off switchs to conducting, M3 and M4 drain electrode
Voltage only drops to 0V from Vdd；Or control metal-oxide-semiconductor M3 and metal-oxide-semiconductor M4 switchs to end from conducting, drain voltage only rises to from 0V
Vdd。
In the case where only using electric capacity C1 or using electric capacity C1 and C2 simultaneously, controlled while work by zero-power
Zero-power voltage adjuster in device forms loop pressure-stabilizing by metal-oxide-semiconductor M3, metal-oxide-semiconductor M4 and controlled, when Vdd voltage reaches zero-power
Set by controller during definite value, and zero-power microprocessor carries out over-pressed detection, under-voltage detection, overload detection and excess temperature detection, such as
Fruit no exceptions, then instruction, starting switch power supply are sent by zero-power controller, if the detection of zero-power microprocessor is found
More than one abnormal, or detects Switching Power Supply output no-load, then is stopped immediately by zero-power microprocessor controlling switch power supply
Only work, in the case where Switching Power Supply is stopped, abnormal parameter occurs for timer access monitoring, such as finds that parameters are extensive
It is multiple normal, then recover Switching Power Supply normal work immediately.
In the case of only using electric capacity C1, when Switching Power Supply normally launches into working condition and powers to the load, simultaneously
Switching mode power supply transformer Vdd windings T1_Na is powered by external diode to Vdd storage capacitors C3, zero-power voltage adjuster
Metal-oxide-semiconductor M3 and metal-oxide-semiconductor M4 conductings are controlled, by by electric capacity C1 and two pairs of metal-oxide-semiconductor one pair of which contact connecting to neutral power eonsumption controller
The ground of circuit, stopping charging to Vdd storage capacitors by electric capacity C1, Vdd voltage maintains by Switching Power Supply Vdd winding powers, because
Resistance is milliohm level when being turned on for metal-oxide-semiconductor M3 and metal-oxide-semiconductor M4, its advanced both ends of alternating current i phases in C1 purely capacitive circuit
90 ° of alternating voltage v phases, its active power Phase angle is represented, therefore flowed through in electric capacity C1
Electric current is reactive current, does not consume any electric energy.
In the case of using electric capacity C1 and C2, when Switching Power Supply normally launches into working condition and powers to the load, together
When switching mode power supply transformer Vdd windings T1_Na by external diode to Vdd storage capacitors C3 power, zero-power voltage adjustment
Device controls metal-oxide-semiconductor M3 and metal-oxide-semiconductor M4 conductings, by by electric capacity C1, the contact connecting to neutral power eonsumption controller circuit of C2 and two pair of metal-oxide-semiconductor
Ground, stop by electric capacity C1, C2 to Vdd storage capacitors charge, Vdd voltage by Switching Power Supply Vdd winding powers maintenance because
Resistance be milliohm level when metal-oxide-semiconductor M3 and metal-oxide-semiconductor M4 are turned on, and C1, C2 are physically that directly connect purely capacitive is parallel to exchange
Power supply L and N-terminal, advanced 90 ° of its both ends alternating voltage v phases of alternating current i phases in the purely capacitive circuit of C1, C2 series connection, its
Active power Phase angle is represented, therefore is reactive current by electric capacity C1 and C2 electric current, no
Consume any electric energy.
No matter Switching Power Supply is working condition or closed mode, and zero-power controller can be as desired by zero power
Consumption voltage-regulating circuit establishes a constant voltage source, enables zero-power controller by whole Switching Power Supply management.
When detecting that load is unloaded, by zero-power microprocessor closing switch power supply immediately, make Switching Power Supply complete
Original output voltage is maintained in the case of not power consumption；According to Switching Power Supply output capacitance zero load discharge time constant and it is unloaded when
To the requirement of the output voltage precision of voltage regulation, timing fixed width starting switch power supply is the electric charge that output capacitance supplement loses, to remain defeated
Go out that terminal voltage is constant, the time that this mode switch power supply is stopped is very long, is second level, and starts as output capacitance supplement electricity
The time of lotus is very short, is Millisecond, and Switching Power Supply is substantially positioned in stop working state, therefore the average power consumption of whole Switching Power Supply
It is almost nil, zero-power during so as to realize that switch power supply no-load is standby.
The utility model also includes the high-voltage MOS pipe M0 controlled by zero-power controller, makes high-voltage MOS pipe M0 and switch electricity
Link in source；
M0 addition, the utility model zero power consumption circuit is set to remain the voltage on Vdd storage capacitors, each starting switch
M0 is opened during power supply makes high-voltage rectifier be charged to the high-voltage filtering capacitor of Switching Power Supply, voltage U (t)=U^ in high-voltage capacitance
(- t/ τ), τ are RC time constants, and t represents the time, because after Switching Power Supply starts immediately, Vdd need not wait to be charged, switch electricity
The high-voltage MOS pipe grid in source is driven immediately, and the high pressure in metal-oxide-semiconductor drain electrode needs to rise by above formula index shape, and this is allowed for
Real soft start is all accomplished in each startup of Switching Power Supply, and can set soft start phase by adjusting RC time constants
Related parameter.
The metal-oxide-semiconductor M1 and M2 can be replaced with other any sub- devices of unilateal conduction, as long as p-type semiconductor and n-type
The sub- device of consistent or unilateal conduction described in the direction of semiconductor and the utility model.
Beneficial effect：Zero-power-consumption standby Switching Power Supply of the present utility model has wide popularization and application prospect：Be not only for
People save unnecessary economic waste, because just there are the sized devices of ten a few to tens of standby also power consumptions in each family,
If national more than ten00000000 populations and the population of the world tens, social total amount are huge.All become when all device standbies
When not wasting the equipment of electric energy of green, the mankind can build how many individual power plants less, burn how many tons of coals and oil less, it is possible to reduce more
Few CO2 emission, it is possible to reduce how many security incident, this is that people are long-awaited.Pass through the popularization of this utility model
The stand-by power consumption standard of China and the world can be shifted onto summit " 0 " using believing.
Brief description of the drawings
The utility model is done with reference to the accompanying drawings and detailed description and further illustrated, the utility model
Above-mentioned or otherwise advantage will become apparent.
Fig. 1 is resistance starting circuit diagram.
Fig. 2 is capacitor start circuit diagram.
Fig. 3 is that switching power source chip absorbs electric current to Vdd storage capacitor charge initiations from internal power MOSFET drain
Circuit diagram.
Fig. 4 is high voltage depletion mode FET start-up circuit schematic diagram.
Fig. 5 is the utility model circuit diagram.
Fig. 6 is another embodiment circuit diagram of the utility model.
Fig. 7 is the utility model circuit flow chart.
Fig. 8 is safety detection module workflow diagram.
Embodiment
Below in conjunction with the accompanying drawings and embodiment is described further to the utility model.
The utility model includes a zero-power controller for being used for controlling switch power supply.
As shown in fig. 6, the zero-power controller includes charge coupling circuit, zero-power microprocessor and zero-power voltage
Adjustment circuit, AC power input through charge coupling circuit sequentially enter zero-power voltage-regulating circuit, zero-power microprocessor,
Switching Power Supply state detector.
The charge coupling circuit includes electric capacity C1, C3 or electric capacity C1, C2, C3.
Two pairs of metal-oxide-semiconductors, zero-power voltage adjuster and reference voltage composition zero-power voltage-regulating circuit.
Two pairs of metal-oxide-semiconductors are respectively metal-oxide-semiconductor M1 and metal-oxide-semiconductor M3, metal-oxide-semiconductor M2 and metal-oxide-semiconductor M4.
The Switching Power Supply includes high-voltage filtering capacitor.
The L ends of AC power pass through the metal-oxide-semiconductor M1 and metal-oxide-semiconductor M3 contact in electric capacity C1 and zero-power voltage-regulating circuit
Connection, metal-oxide-semiconductor M2 and metal-oxide-semiconductor M4 contact are vacant,
The N-terminal of AC power is connected by Vdd storage capacitors C3 with the ground wire of zero-power controller；
The Vdd storage capacitors C3 is sequentially connected diode D1 and switching mode power supply transformer Vdd windings (T1_Na).
As shown in figure 5, further, the utility model can also include electric capacity C2, electric capacity C2 one end and AC power N-terminal
Connection, the other end connect metal-oxide-semiconductor M2 and metal-oxide-semiconductor M4 contact.
In the case where only including electric capacity C1：
When switching on power, because Vdd voltage is not yet established, two pairs of metal-oxide-semiconductors are cut-off state, just the half of alternating current
During week, AC power L rectifies the p-type active and n traps that electric charge enters metal-oxide-semiconductor M1 in zero-power controller by electric capacity C1,
Then pass through Vdd storage capacitor C3, eventually pass back to AC power N-terminal, so as to be charged to Vdd storage capacitors C3.
Between the negative half-cycle of alternating current, AC power L end negative electrical charges enter MOS in zero-power controller by electric capacity C1
Pipe M3 n-type active area and p traps, AC power N-terminal is then return to, while is adjusted by the zero-power voltage in zero-power controller
Device forms loop pressure-stabilizing by metal-oxide-semiconductor M3 and metal-oxide-semiconductor M4 and controlled.
In the case of including electric capacity C2：
When switching on power, because Vdd voltage is not yet established, two pairs of metal-oxide-semiconductors are cut-off state, just the half of alternating current
During week, AC power L rectifies the p-type active and n traps that electric charge enters metal-oxide-semiconductor M1 in zero-power controller by electric capacity C1,
Then pass through Vdd storage capacitors C3, metal-oxide-semiconductor M4 p traps and n-type active area, eventually pass back to AC power N-terminal, so as to be stored up to Vdd
Can electric capacity C3 chargings；
Between the negative half-cycle of alternating current, AC power N-terminal positive charge enters MOS in zero-power controller by electric capacity C2
Pipe M2 p-type active and n traps, then return to alternating current by Vdd storage capacitors C3, metal-oxide-semiconductor M3 p traps and n-type active area
Source L ends, so as to be charged to Vdd storage capacitors C3, while metal-oxide-semiconductor is passed through by the zero-power voltage adjuster in zero-power controller
M3 and metal-oxide-semiconductor M4 forms loop pressure-stabilizing control；
When definite value set by Vdd voltage reaches zero-power controller, instruction, starting switch electricity are sent by zero-power controller
Source, Switching Power Supply normally launch into working condition and powered to the load, and Simultaneous Switching power transformer Vdd windings pass through two poles
Pipe D1 powers to Vdd storage capacitors C3, the zero-power voltage adjuster control metal-oxide-semiconductor M3 and metal-oxide-semiconductor M4 in zero-power controller
Conducting, by electric capacity C1, C2 and the contact connecting to neutral power eonsumption controller circuit of two pairs of metal-oxide-semiconductors ground, stop passing through electric capacity C1, C2 to
Vdd storage capacitors C3 charges, and Vdd voltage maintains by Switching Power Supply Vdd winding powers.
When starting switch power supply, if Switching Power Supply state detector detects that supply voltage is over-pressed or under-voltage, zero power
Consume controller chips temperature excess temperature, circuit in overload or Light Condition during any one or a more exception, immediately
It is stopped by zero-power microprocessor controlling switch power supply.
The utility model also includes high-voltage MOS pipe M0, and zero-power controller controls M0 according to the need of work of Switching Power Supply,
The output of rectifier is charged to high-voltage filtering capacitor C4；High-voltage MOS pipe M0 is opened during each starting switch power supply, makes rectifier
Charged to the high-voltage filtering capacitor of Switching Power Supply, then after Switching Power Supply starts, the high-voltage MOS pipe grid of Switching Power Supply is driven immediately
It is dynamic, so as to realize soft start.
Embodiment 1
The utility model includes a zero-power controller for being used for controlling switch power supply.(as shown in Figure 7)
The zero-power controller includes charge coupling circuit, zero-power microprocessor and zero-power voltage-regulating circuit,
AC power input sequentially enters zero-power voltage-regulating circuit, zero-power microprocessor through charge coupling circuit.
As shown in figure 5, from AC power both ends L and N, two are connected respectively to by two electric capacity C1, C2 of Charged Couple
To the contact of metal-oxide-semiconductor.When switching on power, because Vdd voltage is not yet established, two pairs of metal-oxide-semiconductors are cut-off state.In alternating current
Positive half period between, AC power L (N) rectifies p-type active and n trap of the electric charge by metal-oxide-semiconductor M1 in electric capacity C1 → silicon
→ Vdd storage capacitors C3 → metal-oxide-semiconductor M4 p traps and n-type active area eventually passes back to AC power N (L), to Vdd storage capacitors C3
Charging.Between the negative half-cycle of alternating current, p-type that AC power N (L) positive charges pass through metal-oxide-semiconductor M2 in electric capacity C2 → silicon
Active area and n traps → Vdd storage capacitors C3 → metal-oxide-semiconductor M3 p traps and n-type active area return to AC power L (N), to Vdd energy storage
Electric capacity C3 charges.
When Switching Power Supply normally launches into working condition and powers to the load.Simultaneous Switching power transformer Vdd windings
(T1_Na) powered by external diode to Vdd storage capacitors C3.In piece zero-power voltage adjuster control metal-oxide-semiconductor M3 and
Metal-oxide-semiconductor M4 is turned on, and by the way that C1, C2 and two pair of metal-oxide-semiconductor contact to connect to the ground of chip circuit, stops passing through C1, and C2 is to Vdd energy storage
Electric capacity charges.Vdd voltage maintains by Switching Power Supply Vdd winding powers.Because resistance is milli when metal-oxide-semiconductor M3 and metal-oxide-semiconductor M4 is turned on
Europe level, it is believed that C1, C2 physically purely capacitive are parallel to AC power L and N-terminal for what is directly connected.C1, C2 series connection
Advanced 90 ° of its both ends alternating voltage v phases of alternating current i phases in purely capacitive circuit.Its active powerTherefore be reactive current by C1 and C2 electric current, any electric energy is not consumed.
Embodiment 2
As shown in fig. 6, the present embodiment and the difference of embodiment 1 are, the input of alternating current electric charge only uses an electric capacity C1.
AC power one end L (N) is connected to the one pair of which contact in chip in two pairs of metal-oxide-semiconductors by electric capacity C1.Another metal-oxide-semiconductor docking
Point is vacant, and the other end N (L) of AC power directly connects the ground of chip.And the high-voltage rectifying of Switching Power Supply need to only use two poles
Pipe.As shown in fig. 6, the present embodiment workflow is when switching on power, because Vdd voltage is not yet established, two pairs of metal-oxide-semiconductors are
Cut-off state.Between the positive half period of alternating current, AC power L (N) rectifies electric charge and passes through metal-oxide-semiconductor M1 in electric capacity C1 → silicon
P-type active and n traps → Vdd storage capacitors C3 eventually pass back to AC power N (L), to Vdd storage capacitors C3 charge.Handing over
Between the negative half-cycle for flowing electricity, AC power L (N) hold negative electrical charge by the n-type active area of metal-oxide-semiconductor M3 in electric capacity C1 → silicon and
P traps return to AC power N (L).
When Switching Power Supply normally launches into working condition and powers to the load, Simultaneous Switching power transformer Vdd windings
T1_Na is powered by external diode to Vdd storage capacitors C3, and zero-power voltage adjuster control metal-oxide-semiconductor M3 and metal-oxide-semiconductor M4 is led
It is logical, by the way that electric capacity C1 and the contact connecting to neutral power eonsumption controller circuit of two pairs of metal-oxide-semiconductor one pair of which ground, stopping are passed through into electric capacity C1
Charged to Vdd storage capacitors, Vdd voltage maintains by Switching Power Supply Vdd winding powers, because when metal-oxide-semiconductor M3 and metal-oxide-semiconductor M4 is turned on
Resistance is milliohm level, advanced 90 ° of its both ends alternating voltage v phases of alternating current i phases, its wattful power in C1 purely capacitive circuit
Rate Phase angle is represented, therefore the electric current flowed through in electric capacity C1 is reactive current, does not consume and appoints
What electric energy.
In embodiment 1 and embodiment 2, to C1 (or C1, C2 connect) by controlling the side that metal-oxide-semiconductor M3 and metal-oxide-semiconductor M4 ends
Formula charges to open to C3.AC power both ends are parallel to by metal-oxide-semiconductor M3 and metal-oxide-semiconductor M4 conductings to C1 (or C1, C2 series connection)
Mode come the C3 charging that disconnects.So when the zero-power controller in chip controls metal-oxide-semiconductor M3 and metal-oxide-semiconductor M4 to turn from cut-off
In the case of conducting, M3 and M4 drain voltage only drop to 0V from Vdd (typically in 10V-20V or so).Or turn from conducting
For cut-off, drain voltage only rises to Vdd from 0V (typically in 10V-20V or so).Because voltage dynamic range very little, therefore it is exactly
Big switching power loss will not also be produced by frequently working.This control mode is not only better than traditional resistance starting mode (Fig. 1),
Capacitor start mode (Fig. 2), switching power source chip absorb electric current from internal power MOSFET drain and Vdd storage capacitors are charged
Start-up circuit (Fig. 3), the mode (figure of charge circuit is cut off with high voltage electronics also superior to save start-up circuit power consumption
4).Fig. 4 mesohigh pipe M2 switch to end by turning on, and its drain dynamic electric voltage rises to 300V from Vdd (typically in 10V-20V).
Because this Larger Dynamic scope by being conducting to cut-off is a slope needing the time, switching loss necessarily occurs.Particularly by
When Switching Power Supply needs frequently to be turned off and on for some reason (when such as unloaded), loss is bigger.
Embodiment 1 and embodiment 2 pass through metal-oxide-semiconductor M3, MOS while work by the zero-power voltage adjuster in chip
Pipe M4 forms loop pressure-stabilizing control.When Vdd voltage reaches definite value set by zero-power controller in chip, and built-in chip type zero power
Consumption microprocessor detection does not find over-pressed detection；Under-voltage detection；Overload detection and excess temperature detection occur abnormal.Then by zero-power control
Device processed sends instruction, starting switch power supply.As built-in zero-power microprocessor detection finds overvoltage detection；Under-voltage detection；Overload
Detection and excess temperature detection have exception, or detect Switching Power Supply output no-load, then by zero-power microprocessor flow processing until
Into normal operating conditions.
The technical solution of the utility model also has the advantages of other Switching Power Supply Starting mode does not possess, and exactly passes
The Switching Power Supply Starting mode of system, which can only be done, starts (being exactly to be charged to storage capacitor), and itself can not establish the electricity of a steady
Potential source.The technical solution of the utility model is not only reliably completed the startup task of Switching Power Supply, and its prior feature is exactly
No matter Switching Power Supply is working condition or closed mode, and zero-power controller can adjust as desired by zero-power voltage
Circuit establishes a constant voltage source, enables zero-power controller by whole Switching Power Supply management.Complete Switching Power Supply
Continuous firing after startup, make ad hoc zero-power microprocessor monitors Switching Power Supply multiple parameters, it is over-pressed and deficient such as supply voltage
Pressure, the excess temperature of chip, the overload of load and zero load.It is excessively gentle to overload any one or several as over-pressed or under-voltage when detecting
When abnormal, it is stopped immediately by zero-power microprocessor controlling switch power supply, it is ensured that the safety of switch power supply system and province
Electricity.In the case where Switching Power Supply is stopped, abnormal parameter occurs for timer access monitoring.Such as find that parameters are recovered just
Often, then Switching Power Supply normal work is recovered immediately (see Fig. 8：Microcontroller circuit flow chart).
The utility model zero-power starts controller, (is typically all existed greatly very much using Switching Power Supply output electrochemical capacitor
Thousands of microfarads), in unloaded and disconnection charging, voltage self discharge thereon is very slow, can be tieed up in the even longer time tens of seconds
The constant characteristic of voltage is held, when detecting that load is unloaded, by zero-power microprocessor closing switch power supply immediately.Make switch electric
Source maintains original output voltage in the case of not power consumption completely.According to Switching Power Supply output capacitance zero load discharge time constant
The electric charge lost is supplemented for output capacitance to the requirement of the output voltage precision of voltage regulation, timing fixed width starting switch power supply with during zero load,
To maintain output end voltage constant.The time that this mode switch power supply is stopped is very long (second level), and starts as output electricity
Hold that the time of supplement electric charge is very short (Millisecond), and Switching Power Supply is substantially positioned in stop working state, therefore whole Switching Power Supply
Average power consumption is almost nil.Realize switch power supply no-load it is standby when zero-power.
In order to further eliminate caused by the electric leakage that may be present of Switching Power Supply high-voltage filtering capacitor power consumption (actually
It is all or certain leaky be present under voltage of the qualified high-voltage electrolytic capacitor of certified products more than hectovolt, even only leak
Electric 1uA electric current, in the case of 300V, 300uW electric energy is just lost.), so when Switching Power Supply is stopped, institute
So that when Switching Power Supply is stopped, technical solutions of the utility model increase controls high-voltage MOS pipe (figure by zero-power controller
M0 in M0 in 5, Fig. 6) rectification output is disconnected to high-voltage electrolytic capacitor power supply.Connected in real time when Switching Power Supply opens work
High voltage power supply.This is particularly important for realizing zero-power and low power consumption standby during no-load standby.
M0 addition, technical solutions of the utility model zero power consumption circuit is set to remain the voltage on Vdd storage capacitors.Every time
M0 is opened during starting switch power supply makes high-voltage rectifier be charged to the high-voltage filtering capacitor of Switching Power Supply, the voltage in high-voltage capacitance
U (t)=U^ (- t/ τ), (τ is RC time constants).Since after Switching Power Supply starts immediately (Vdd need not wait to be charged), switch electricity
The high-voltage MOS pipe grid in source is driven immediately.And the high pressure in metal-oxide-semiconductor drain electrode needs to rise by above formula index shape.This is allowed for
Each startup of Switching Power Supply can accomplish real soft start.And soft open can be set by adjusting RC time constants
Dynamic relevant parameter.This is also that the hard switching of traditional Switching Power Supply can not be accomplished.They can only in initial driving in order that
Startup becomes softer, can only be made up from narrow to wide by adjustment raster data model pulsewidth.
Due to the needs of different process, metal-oxide-semiconductor M1 and M2 in the technical solution of the utility model Fig. 5 can use others
The sub- device of any unilateal conduction replaces, if the direction of p-type semiconductor and n-type semiconductor described with the technical program it is consistent
Can.
The technical solution of the utility model is applied to all kinds and the Switching Power Supply of various power.Such as mobile phone charging
Device, either wired mobile phone charger or wireless mobile phone charger can be inserted on socket always, automatic when detecting mobile phone
Charging, battery, which is full of, to be automatically powered off.It is not only to power off battery of mobile phone, prevents due to overcharging damage battery, while also open
The electricity of powered-down source chip and high-voltage rectifying part, to entirely prevent the device aging caused by connecing high pressure for a long time, electric capacity electrolysis
The withered unsafe factor such as on fire that even generates heat of liquid.Also such as high power electric vehicle charger, the charging of electric car are typically pacified
Come at night, if overshoot is all very harmful either to lead-acid battery or lithium battery, and be danger close.For charging
Device is due to being to be operated in high-power state, and overshoot the lighter influences the charger life-span, and severe one causes the accident.Use the utility model skill
The charger of the Zero-power-consumption standby switch power integrated circuit of art scheme, the power supply of charger is completely cut through after battery is full of,
Both battery is protected, also protects charger.The supply convertor also generally used as each electric appliances, turns off in main frame
Afterwards, when supply convertor is also inserted on socket, zero-power integrated circuit detects that main frame shuts down, and closes Switching Power Supply and enters
Zero-power-consumption standby state (makes Switching Power Supply output capacitance keep original output voltage).When main frame is opened, supply convertor is stood
Enter working condition, export and power to main frame.
The utility model can also be widely used in all kinds of equipment using alternating current, such as the TV in household electrical appliances, sound equipment,
Air-conditioning, micro-wave oven etc.；Computer in office equipment, fax, print, all kinds of electric equipments in duplicating etc. and industry.
The wide popularization and application of Zero-power-consumption standby Switching Power Supply of the present utility model：
It is not only to save unnecessary economic waste for people, because each family just has ten, a few to tens of are standby also
The sized devices of power consumption, if national more than ten00000000 populations and the population of the world tens, social total amount are huge.When all
Device standby all becomes when not wasting the equipment of electric energy of green, and the mankind can build how many individual power plants less, burn how many tons of coals less
And oil, it is possible to reduce how many CO2 emission, it is possible to reduce how many security incident, this is that people are long-awaited.Pass through this
Promoting the use of for item utility model is believed and the stand-by power consumption standard of China and the world can be shifted onto summit " 0 ".
The utility model provides one kind and realizes Zero-power-consumption standby switch power integrated circuit, implements the technical scheme
Method and approach it is a lot, described above is only preferred embodiment of the present utility model, it is noted that for the art
Those of ordinary skill for, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, this
A little improvements and modifications also should be regarded as the scope of protection of the utility model.Each part being not known in the present embodiment is available existing
There is technology to be realized.
Claims (1)
1. one kind realizes Zero-power-consumption standby switch power integrated circuit, it is characterised in that is used for controlling switch power supply including one
Zero-power controller, the zero-power controller includes charge coupling circuit, zero-power microprocessor and zero-power voltage are adjusted
Whole circuit, AC power input sequentially enter zero-power voltage-regulating circuit, zero-power microprocessor through charge coupling circuit, and zero
Include two pairs of metal-oxide-semiconductors, respectively metal-oxide-semiconductor M1 and metal-oxide-semiconductor M2, metal-oxide-semiconductor M3 and metal-oxide-semiconductor M4 in power eonsumption controller；
The input of alternating current electric charge uses an electric capacity C1, and AC power first end is connected in zero-power controller by electric capacity C1
One pair of which contact in two pairs of metal-oxide-semiconductors, another pair metal-oxide-semiconductor contact is vacant, the direct connecting to neutral power consumption control in the second end of AC power
The ground of device processed, the high-voltage rectifying of Switching Power Supply only use a diode；
When switching on power, because Vdd voltage is not yet established, two pairs of metal-oxide-semiconductors are cut-off state, in the positive half period of alternating current
Between, AC power first end positive charge flows into the p-type active and n traps of metal-oxide-semiconductor M1 in zero-power controller by electric capacity C1, so
Vdd storage capacitor C3 are flowed into afterwards, eventually pass back to the end of AC power second, are charged to Vdd storage capacitors C3；
Between the negative half-cycle of alternating current, AC power first end negative electrical charge flows into MOS in zero-power controller by electric capacity C1
Pipe M3 n-type active area and p traps, is then return to the end of AC power second；
Electric capacity C1 is charged by way of controlling metal-oxide-semiconductor M3 and metal-oxide-semiconductor M4 to end to open to electric capacity C3, electric capacity C1 is passed through
Metal-oxide-semiconductor M3 and metal-oxide-semiconductor M4 conductings are parallel to the mode at AC power both ends to disconnect electric capacity C3 charging；
When zero-power controller controls metal-oxide-semiconductor M3 and metal-oxide-semiconductor M4 from the case that cut-off switchs to conducting, M3 and M4 drain voltage
Only drop to 0V from Vdd；Or control metal-oxide-semiconductor M3 and metal-oxide-semiconductor M4 switchs to end from conducting, drain voltage only rises to Vdd from 0V；
Also include electric capacity C2, from AC power both ends, zero power is connected respectively to by two electric capacity C1, C2 of charge coupling circuit
The contact of two pairs of metal-oxide-semiconductors in controller is consumed, when switching on power, because Vdd voltage is not yet established, two pairs of metal-oxide-semiconductors are cut-off
State, between the positive half period of alternating current, AC power first end positive charge flows into MOS in zero-power controller by electric capacity C1
Pipe M1 p-type active and n traps, Vdd storage capacitor C3 are then flowed into, then p traps and n-type active area through metal-oxide-semiconductor M4 finally return
To the end of AC power second, charged to Vdd storage capacitors C3；
Between the negative half-cycle of alternating current, AC power second rectifies electric charge and flows into MOS in zero-power controller by electric capacity C2
Pipe M2 p-type active and n traps, Vdd storage capacitor C3 are then flowed into, then p traps and n-type active area through metal-oxide-semiconductor M3 return to friendship
Power supply first end is flowed, is charged to Vdd storage capacitors C3；
To C1, the mode that C2 is connected in series through control metal-oxide-semiconductor M3 and metal-oxide-semiconductor M4 cut-offs is charged to open to electric capacity C3, and C1, C2 are gone here and there
UNICOM crosses metal-oxide-semiconductor M3 and metal-oxide-semiconductor M4 conductings and is parallel to the mode at AC power both ends to disconnect electric capacity C3 charging；
When zero-power controller controls metal-oxide-semiconductor M3 and metal-oxide-semiconductor M4 from the case that cut-off switchs to conducting, M3 and M4 drain voltage
Only drop to 0V from Vdd；Or control metal-oxide-semiconductor M3 and metal-oxide-semiconductor M4 switchs to end from conducting, drain voltage only rises to Vdd from 0V；
Two pairs of metal-oxide-semiconductors, zero-power voltage adjuster and reference voltage composition zero-power voltage-regulating circuit, while work
Loop pressure-stabilizing control is formed by metal-oxide-semiconductor M3, metal-oxide-semiconductor M4 by the zero-power voltage adjuster in zero-power controller, when Vdd electricity
When pressure reaches definite value set by zero-power controller, zero-power microprocessor carries out over-pressed detection, under-voltage detection, overload detection and mistake
Temperature detector is surveyed, if no exceptions, instruction, starting switch power supply, if zero-power microprocessor are sent by zero-power controller
Device detection finds more than one of exception, or detects Switching Power Supply output no-load, then is controlled immediately by zero-power microprocessor
Switching Power Supply is stopped, and in the case where Switching Power Supply is stopped, abnormal parameter occurs for timer access monitoring, such as finds
Parameters recover normal, then recover Switching Power Supply normal work immediately；
When Switching Power Supply normally launches into working condition and powers to the load, Simultaneous Switching power transformer Vdd windings T1_Na
Powered, the control metal-oxide-semiconductor M3 and metal-oxide-semiconductor M4 conductings of zero-power voltage adjuster, led to Vdd storage capacitors C3 by external diode
The ground of the contact connecting to neutral power eonsumption controller circuit by electric capacity C1 and two pairs of metal-oxide-semiconductor one pair of which is crossed, stops passing through electric capacity C1 to Vdd
Storage capacitor charges, and Vdd voltage maintains by Switching Power Supply Vdd winding powers, because resistance when metal-oxide-semiconductor M3 and metal-oxide-semiconductor M4 is turned on
For milliohm level, advanced 90 ° of its both ends alternating voltage v phases of alternating current i phases, its active power in C1 purely capacitive circuit Phase angle is represented, therefore the electric current flowed through in electric capacity C1 is reactive current, does not consume any electricity
Energy；
When Switching Power Supply normally launches into working condition and powers to the load, Simultaneous Switching power transformer Vdd windings T1_Na
Powered, the control metal-oxide-semiconductor M3 and metal-oxide-semiconductor M4 conductings of zero-power voltage adjuster, led to Vdd storage capacitors C3 by external diode
Cross electric capacity C1, the ground of the contact connecting to neutral power eonsumption controller circuit of C2 and two pair of metal-oxide-semiconductor, stop storing up to Vdd by electric capacity C1, C2
Energy electric capacity charging, Vdd voltage maintains by Switching Power Supply Vdd winding powers, because resistance is when metal-oxide-semiconductor M3 and metal-oxide-semiconductor M4 is turned on
Milliohm level, C1, C2 physically for directly connect it is purely capacitive be parallel to AC power L and N-terminal, C1, C2 series connection it is purely capacitive
Advanced 90 ° of its both ends alternating voltage v phases of alternating current i phases, its active power in circuit
Phase angle is represented, therefore is reactive current by electric capacity C1 and C2 electric current, does not consume any electric energy；
No matter Switching Power Supply is working condition or closed mode, and zero-power controller can be as desired by zero power power consumption
Pressure adjustment circuit establishes a constant voltage source, enables zero-power controller by whole Switching Power Supply management；
When detecting that load is unloaded, by zero-power microprocessor closing switch power supply immediately, Switching Power Supply is set not consume completely
Original output voltage is maintained in the case of electricity；According to Switching Power Supply output capacitance zero load discharge time constant and it is unloaded when to defeated
Go out the requirement of the voltage precision of voltage regulation, timing fixed width starting switch power supply is the electric charge that output capacitance supplement loses, to maintain output end
Voltage is constant, and the time that this mode switch power supply is stopped is very long, is second level, and starts and supplement electric charge for output capacitance
Time is very short, is Millisecond, Switching Power Supply is substantially positioned in stop working state, therefore the average power consumption of whole Switching Power Supply is almost
It is zero, zero-power during so as to realize that switch power supply no-load is standby；
Including the high-voltage MOS pipe M0 controlled by zero-power controller, high-voltage MOS pipe M0 and Switching Power Supply is set to link；
M0 addition, the utility model zero power consumption circuit is set to remain the voltage on Vdd storage capacitors, each starting switch power supply
Shi Kaitong M0 make high-voltage rectifier be charged to the high-voltage filtering capacitor of Switching Power Supply, voltage U (t)=U^ (- t/ in high-voltage capacitance
τ), τ is RC time constants, and t represents the time because after Switching Power Supply starts immediately, Vdd need not wait it is to be charged, Switching Power Supply
High-voltage MOS pipe grid is driven immediately, and the high pressure in metal-oxide-semiconductor drain electrode needs to rise by above formula index shape, and this allows for switching
Real soft start is all accomplished in each startup of power supply, and can set the related ginseng of soft start by adjusting RC time constants
Number；
The metal-oxide-semiconductor M1 and M2 can replace with other any sub- devices of unilateal conduction.
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| CN201720397450.8U CN206850679U (en) | 2017-04-17 | 2017-04-17 | One kind realizes Zero-power-consumption standby switch power integrated circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112294186A (en) * | 2019-07-31 | 2021-02-02 | 苏州市春菊电器有限公司 | Power consumption zero-power-consumption protection circuit of dust collector and protection method thereof |
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2017
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112294186A (en) * | 2019-07-31 | 2021-02-02 | 苏州市春菊电器有限公司 | Power consumption zero-power-consumption protection circuit of dust collector and protection method thereof |
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Effective date of registration: 20220406 Address after: 210000 room 1002, Nanyou building, No. 66, Xinfan Road, Gulou District, Nanjing, Jiangsu Province Patentee after: Nanjing meisma Microelectronics Technology Co.,Ltd. Address before: 518049 804, building C, zone B, Yifeng garden, CaiTian North Road, Futian District, Shenzhen, Guangdong Province Patentee before: Liu Ming |
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