CN206250964U - The quick power supply adaptor for starting - Google Patents
The quick power supply adaptor for starting Download PDFInfo
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- CN206250964U CN206250964U CN201621395891.6U CN201621395891U CN206250964U CN 206250964 U CN206250964 U CN 206250964U CN 201621395891 U CN201621395891 U CN 201621395891U CN 206250964 U CN206250964 U CN 206250964U
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Abstract
The utility model proposes a kind of power supply adaptor of quick startup, it includes input rectifying filter circuit, electric power management circuit, transformer circuit and output filter circuit of pressure-stabilizing, and the transformer circuit includes armature winding, secondary windings and assists winding；The electric power management circuit includes power supply chip U1, chip power supply sub-circuit and switching tube Q1, the chip power supply sub-circuit includes two electrochemical capacitors, when power supply adaptor incoming transport electricity, input voltage first charges to one of electrochemical capacitor, power supply chip U1 is quickly started.The power supply adaptor of above-mentioned quick startup, can quick starting power supply chip, shorten the available machine time, and circuit structure is simple, be easily achieved, with stronger industrial usability.
Description
Technical field
The utility model is related to power technique fields, more particularly to a kind of power supply adaptor of quick startup.
Background technology
In daily life, many electronic equipments are equipped with power supply adaptor, and power supply adaptor turns alternating current
Direct current is changed to, is power electronic equipment.
Power supply adaptor start in the market is relatively slow, is successfully started up to power supply adaptor from incoming transport electricity, at least
Need the 3s times.
Utility model content
In view of this, it is necessary to which a kind of power supply adaptor of quick startup is provided, being capable of quick starting power supply chip, contracting
The short available machine time.
A kind of power supply adaptor of quick startup, it includes input rectifying filter circuit, electric power management circuit, transformer electricity
Road and output filter circuit of pressure-stabilizing, the transformer circuit include armature winding, secondary windings and assists winding；
The input of the input rectifying filter circuit is used to access civil power, and the first of the input rectifying filter circuit is defeated
Go out the end connection armature winding first end, the second output end of the input rectifying filter circuit is used to be grounded；
The electric power management circuit includes power supply chip U1, chip power supply sub-circuit and switching tube Q1, the chip power supply
Sub-circuit includes electrochemical capacitor C2, electrochemical capacitor C3, diode D5, diode D6, resistance R5 and first resistor string R28；It is described
First resistor string R28 one end is used to connect live wire, and the first resistor string R28 other ends are used to connect zero line, first electricity
A series connection node A in resistance string R28 connects the power input pin VDD of the power supply chip U1, the electrochemical capacitor C3 respectively
Positive pole and the diode D6 negative electrode, the diode D5 and the diode D6 series aiding connections, the diode D5's
Anode connects the assists winding first end by the resistance R5, the end of the assists winding second and the electrochemical capacitor C3's
Negative pole is respectively used to ground connection, and the positive pole connection of the electrochemical capacitor C2 connects the anode of the diode D6 and two pole respectively
The negative electrode of pipe D5, the negative pole of the electrochemical capacitor C2 is used to be grounded；
The output pin GATE of the power supply chip U1 connects the grid of the switching tube Q1, the drain electrode of the switching tube Q1
The end of the armature winding second is connected, the source electrode of the switching tube Q1 is used to be grounded；
The input of the secondary windings first end connection output filter circuit of pressure-stabilizing, the output voltage regulation filtering electricity
First output end on road connects the feedback pin FB of the power supply chip U1, the second output end of the output filter circuit of pressure-stabilizing
Loaded for connecting.
Wherein in one embodiment, the chip power supply sub-circuit also includes the resistance R22 and resistance R31 of series connection, institute
The connecting node that resistance R22 and resistance R31 one end of series connection are connected between the resistance R28 and resistance R28A is stated, it is described
Resistance R22 and resistance the R31 other end of series connection connect the power input pin of the power supply chip U1, the electrochemical capacitor respectively
The negative electrode of the positive pole of C3 and the diode D6.
Wherein in one embodiment, the chip power supply sub-circuit also includes second resistance string R29, the second resistance
R29 is in parallel with the first resistor string R28 for string, and a series connection node B and the section of connecting in the second resistance string R29
Point A is connected.
Wherein in one embodiment, also including resistance R24, the resistance R24 is connected to the chip power supply sub-circuit
Between the negative electrode of the anode of the diode D6 and the diode D5.
Wherein in one embodiment, the output filter circuit of pressure-stabilizing includes diode D2, a RC circuits and voltage stabilizing
Sub-circuit, the voltage stabilizing sub-circuit includes photo-coupler U2, resistance R14, resistance R15, resistance R18, the controllable source of stable pressure U3 in three ends
And the 2nd RC circuit,
The first RC circuits are in parallel with the diode D2, and the anode of the diode D2 connects the secondary windings the
One end, the negative electrode of the diode D2 connects the first input end of the photo-coupler U2, two pole by the resistance R18
The negative electrode of pipe D2 also connects the first end of the controllable source of stable pressure U3 in three ends, the controllable voltage stabilizing in three ends by the resistance R14
Second end of source U3 connects second input of the photo-coupler U2, and the 3rd end of the controllable source of stable pressure U3 in three ends is used to connect
Ground, the two ends of the 2nd RC circuits connect first end and second end of the controllable source of stable pressure U3 in three end respectively；The optocoupler
The output end of clutch connects the feedback pin of the power management chip U1.
Wherein in one embodiment, the output filter circuit of pressure-stabilizing also includes order electrochemical capacitor C4, electricity in parallel
Solution electric capacity C5, resistance R21 and common mode inductance LF3；
The positive pole of the electrochemical capacitor C4, the positive pole of the electrochemical capacitor C5, the first end of the resistance R21 and described common
The first input end of mould inductance LF3 connects the negative electrode of the diode D2, the negative pole of the electrochemical capacitor C4, the electrolysis respectively
Second input of the negative pole of electric capacity C5, second end of the resistance R21 and the common mode inductance LF3 is respectively used to ground connection；
First output end of the common mode inductance LF3 is used to connect load positive pole, second output of the common mode inductance LF3
Hold for connecting load negative pole.
Wherein in one embodiment, the output filter circuit of pressure-stabilizing also includes the resistance R30 and indicator lamp of series connection
The positive pole of LED, the indicator lamp LED connects the negative electrode of the diode D2 by the resistance R30, the indicator lamp LED's
Negative pole is used to be grounded.
Wherein in one embodiment, the electric power management circuit also includes diode D3, diode D4, electric capacity C7, electricity
Resistance R9, resistance R10, resistance R19 and an electric resistance array in parallel；
The resistance R10 is in parallel with the diode D3, and the negative electrode of the diode D3 connects the power supply chip U1's
The anode of output pin GATE, the diode D3 connects the grid of the switching tube Q1, and the anode of the diode D3 is also suitable
Sequence connects the current detecting pin SENSE of the power supply chip U1 by the resistance R19 for the connecting and resistance R9；
Connecting node between the resistance R19 and the resistance R9 connects the source electrode of the switching tube Q1, the switch
The source electrode of pipe Q1 is by the parallel resistance array ground；
The negative electrode that the anode of the diode D4 connects timing the pin RT, the diode D4 of the power supply chip U1 is used
In ground connection；
Described electric capacity C7 one end connects the current detecting pin SENSE of the power supply chip U1, the electric capacity C7 other ends
For being grounded.
Wherein in one embodiment, the power supply adaptor also includes fuse F1, the input rectifying filter circuit
First input end be used to connect live wire by the fuse F1, the second input of the input rectifying filter circuit is used for
Connection zero line.
Wherein in one embodiment, the power supply adaptor also includes piezo-resistance VR1, the piezo-resistance VR1's
Two ends connect the first input end of the current rectifying and wave filtering circuit and the second input of the current rectifying and wave filtering circuit respectively.
In the present embodiment, after alternating current is connected, input voltage passes through the electric resistance partial pressure in first resistor string R28, to electricity
Hold C3 to be charged, now diode D6 reversely ends, electric capacity C2 is not charged.When the voltage at electric capacity C3 two ends reaches power supply core
During the startup voltage of piece U1, the output end of power supply chip starts output control signal so that the output end of power supply adaptor has letter
Number output.Because electric capacity C3 capacity is smaller, the charging interval is fast, therefore, it is possible to reach the effect of quick startup.
The power supply adaptor of above-mentioned quick startup, energy quick starting power supply chip, shortens the available machine time, and circuit structure
Simply, it is easily achieved, with stronger industrial usability.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, the accompanying drawing of other embodiment can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the power supply adaptor of the quick startup of an embodiment；
Fig. 2 is the circuit diagram of the power supply adaptor of the quick startup of an embodiment.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and implementation
Example, is further elaborated to the utility model.It should be appreciated that specific embodiment described herein is only used to explain
The utility model, is not used to limit the utility model.
In description of the present utility model, it is to be understood that term " first ", " second " are only used for describing purpose, and
It is not intended that indicating or implying relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define
At least one this feature can be expressed or be implicitly included to the feature of " first ", " second ".In description of the present utility model,
" multiple " is meant that at least two, such as two, three etc., unless otherwise expressly limited specifically.
The power supply adaptor of the quick startup according to the utility model embodiment is described below in conjunction with the accompanying drawings.For example, this reality
Included with the power supply adaptor of the quick startup of a new embodiment：Input rectifying filter circuit, electric power management circuit, transformer
Circuit and output filter circuit of pressure-stabilizing, transformer circuit include armature winding, secondary windings and assists winding；Input rectifying is filtered
The input of circuit is used to access civil power, the first output end connection armature winding first end of input rectifying filter circuit, input
Second output end of current rectifying and wave filtering circuit is used to be grounded.Wherein electric power management circuit includes power supply chip U1, chip power supply electricity
Road and switching tube Q1, chip power supply sub-circuit include electrochemical capacitor C2, electrochemical capacitor C3, diode D5, diode D6, resistance R5
And first resistor string R28；First resistor string R28 one end is used to connect live wire, and the first resistor string R28 other ends are used to connect zero
Line, the series connection node A in first resistor string R28 connects the power input pin VDD of power supply chip U1, electrochemical capacitor C3 respectively
Positive pole and diode D6 negative electrode, diode D5 and diode D6 series aiding connections, the anode of diode D5 connected by resistance R5
Connect assists winding first end, the negative pole of the end of assists winding second and electrochemical capacitor C3 is respectively used to ground connection, and electrochemical capacitor C2 is just
Pole connection connects the anode of diode D6 and the negative electrode of diode D5 respectively, and the negative pole of electrochemical capacitor C2 is used to be grounded；Power supply core
The grid of the output pin GATE connecting valve pipes Q1 of piece U1, drain electrode connection armature winding second end of switching tube Q1, switching tube
The source electrode of Q1 is used to be grounded, and for example the source electrode of switching tube Q1 passes through resistance eutral grounding；The connection output voltage stabilizing filter of secondary windings first end
The input of wave circuit, exports the feedback pin FB of the first output end connection power supply chip U1 of filter circuit of pressure-stabilizing, and output is steady
Second output end of press filtration wave circuit is used to connect load.
For example, Fig. 1 is referred to, the power supply adaptor 10 of the quick startup of an embodiment, including：Input rectifying filter circuit
11st, electric power management circuit 12, transformer circuit 13 and output filter circuit of pressure-stabilizing 14, transformer circuit include armature winding, secondary
Level winding and assists winding；The input of input rectifying filter circuit is used to access civil power, the first of input rectifying filter circuit
Output end connects armature winding first end, and the second output end of input rectifying filter circuit is used to be grounded.
As shown in figure 1, electric power management circuit includes power supply chip U1, chip power supply sub-circuit and switching tube Q1, chip is supplied
Electronic circuit includes electrochemical capacitor C2, electrochemical capacitor C3, diode D5, diode D6, resistance R5 and first resistor string R28；The
One resistance string R28 one end is used to connect live wire, and the first resistor string R28 other ends are used to connect zero line, in first resistor string R28
One series connection node A connects the moon of the power input pin VDD, the positive pole of electrochemical capacitor C3 and diode D6 of power supply chip U1 respectively
Pole, diode D5 and diode D6 series aiding connections, the anode of diode D5 connect assists winding first end, auxiliary by resistance R5
The negative pole of the end of winding second and electrochemical capacitor C3 is respectively used to ground connection, and the positive pole connection of electrochemical capacitor C2 connects diode D6 respectively
Anode and diode D5 negative electrode, the negative pole of electrochemical capacitor C2 is used to be grounded；The output pin GATE connections of power supply chip U1
The grid of switching tube Q1, drain electrode connection armature winding second end of switching tube Q1, the source electrode of switching tube Q1 is used to be grounded, for example, opens
The source electrode for closing pipe Q1 passes through resistance eutral grounding；The input of secondary windings first end connection output filter circuit of pressure-stabilizing, exports voltage stabilizing
The feedback pin FB of the first output end connection power supply chip U1 of filter circuit, the second output end for exporting filter circuit of pressure-stabilizing is used
Loaded in connection.
In the present embodiment, after alternating current is connected, input voltage passes through the electric resistance partial pressure in first resistor string R28, to electricity
Hold C3 to be charged, now diode D6 reversely ends, electric capacity C2 is not charged.When the voltage at electric capacity C3 two ends reaches power supply core
During the startup voltage of piece U1, the output end of power supply chip starts output control signal so that the output end of power supply adaptor has letter
Number output.Wherein, the startup time of power supply adaptor determined by resistance string R28 and electric capacity C3.Because electric capacity C3 capacity is smaller, fill
The electric time is fast, therefore, it is possible to reach the effect of quick startup.By test, startup time of above-mentioned power supply adaptor can 1S with
It is interior.
The power supply adaptor of above-mentioned quick startup, energy quick starting power supply chip, shortens the available machine time, and circuit structure
Simply, it is easily achieved, with stronger industrial usability.
In one embodiment, as shown in Fig. 2 electric power management circuit also include diode D3, diode D4, electric capacity C7,
The electric resistance array in parallel of resistance R9, resistance R10, resistance R19 and one, resistance R10 is in parallel with diode D3, and the negative electrode of diode D3 connects
Meet the output pin GATE of power supply chip U1, the grid of the anode connecting valve pipe Q1 of diode D3, the anode of diode D3 is also
Order connects the current detecting pin SENSE of power supply chip U1 by the resistance R19 and resistance R9 that connect；Resistance R19 and resistance
The source electrode of the connecting node connecting valve pipe Q1 between R9, the source electrode of switching tube Q1 passes through parallel resistance array ground；Diode
The negative electrode of timing the pin RT, diode D4 of the anode connection power supply chip U1 of D4 is used to be grounded；Electric capacity C7 one end connects power supply
Current detecting pin SENSE, electric capacity the C7 other end of chip U1 are used to be grounded.
In one embodiment, as shown in Fig. 2 chip power supply sub-circuit also includes the resistance R22 and resistance R31 of series connection,
Series connection resistance R22 and resistance R31 one end connection resistance R28 and resistance R28A between connecting node, the resistance R22 of series connection and
The resistance R31 other ends connect the moon of the power input pin of power supply chip U1, the positive pole of electrochemical capacitor C3 and diode D6 respectively
Pole.
Used as a kind of implementation method, layout designs of circuit board for convenience, the resistance R22 and resistance R31 of series connection is another
End connects the positive pole of electrochemical capacitor C3 by one 0 Europe resistance J10, and 0 Europe resistance J10 is equivalent to wire jumper.
Wherein in one embodiment, chip power supply sub-circuit also include second resistance string R29, second resistance string R29 with
First resistor string R28 is in parallel, and a series connection node B in second resistance string R29 is connected with series connection node A.
Wherein in one embodiment, chip power supply sub-circuit also includes that resistance R24, resistance R24 are connected to diode D6
Anode and the negative electrode of diode D5 between.For example, one end of resistance R24 connects the negative electrode of diode D5, resistance R24's is another
End connects the anode of diode D6 and the positive pole of electrochemical capacitor C2 respectively.
In one embodiment, transformer circuit also includes an electric resistance array in parallel, the 3rd RC circuits and diode D1, its
The negative electrode of middle diode D1 connects armature winding first end, the anode connection armature winding of diode D1 by the 3rd RC circuits
Second end.The parallel resistance array and the 3rd RC circuit in parallel.
For example, as shown in Fig. 2 the parallel resistance array includes order resistance R6 to resistance R8, resistance R6 to electricity in parallel
The identical settings of resistance R8.And for example, the 3rd RC circuits include electric capacity C6 and resistance R11.
In one embodiment, as shown in Fig. 2 output filter circuit of pressure-stabilizing includes diode D2, RC circuits and steady
Pressure sub-circuit, voltage stabilizing sub-circuit include photo-coupler U2, resistance R14, resistance R15, resistance R18, the controllable source of stable pressure U3 in three ends and
2nd RC circuits, a RC circuits are in parallel with diode D2, the anode connection secondary windings first end of diode D2, diode D2
Negative electrode the first input end of photo-coupler U2 is connected by resistance R18, the negative electrode of diode D2 also connects three by resistance R14
The first end of controllable source of stable pressure U3 is held, second end of the controllable source of stable pressure U3 in three ends connects second input of photo-coupler U2, three
Holding the 3rd end of controllable source of stable pressure U3 is used to be grounded, and the two ends of the 2nd RC circuits connect the first of the controllable source of stable pressure U3 in three ends respectively
End and the second end；The feedback pin (FB pins) of the output end connection power management chip U1 of photo-coupler U2.
Wherein, the first end of source of stable pressure U3 is reference voltage output terminal, for exporting the reference voltage of stabilization and detecting electricity
The output voltage of source adapter is referred to through the magnitude of voltage after resistance R14 and resistance R15 partial pressures when the branch pressure voltage for detecting is more than
During voltage, second end of source of stable pressure U3 and the 3rd end path, the output end conducting of photoelectrical coupler U2 so that power supply chip U1's
Feedback pin (FB pins) is grounded, and now the output pin (GATE pins) of power supply chip U1 stops output, so as to ensure power supply
The output voltage stabilization of adapter.Wherein, the reference voltage of source of stable pressure U3 is 2.5V.Source of stable pressure U3 is the controllable source of stable pressure in three ends,
For example, TL431 source of stable pressure.
In one embodiment, in order to further filter out the noise in output voltage, as shown in Fig. 2 output voltage regulation filtering
Circuit also includes order electrochemical capacitor C4, electrochemical capacitor C5, resistance R21 and common mode inductance LF3 in parallel；Electrochemical capacitor C4 is just
The first input end of pole, the positive pole of electrochemical capacitor C5, the first end of resistance R21 and common mode inductance LF3 connects diode D2 respectively
Negative electrode, the second of the negative pole of electrochemical capacitor C4, the negative pole of electrochemical capacitor C5, second end of resistance R21 and common mode inductance LF3 be defeated
Enter end and be respectively used to ground connection；First output end of common mode inductance LF3 is used to connect load positive pole, and the second of common mode inductance LF3 is defeated
Go out end for connecting load negative pole.
In one embodiment, as shown in Fig. 2 output filter circuit of pressure-stabilizing also includes the resistance R30 and indicator lamp of series connection
The positive pole of LED, indicator lamp LED connects the negative electrode of diode D2 by resistance R30, and the negative pole of indicator lamp LED is used to be grounded.This
Sample, after above-mentioned power supply adaptor starts, indicator lamp LED1 is lighted, and user can be pointed out successfully to switch on power.Wherein, indicate
Lamp LED1 can select the LED light source of pre-set color, for example, indicator lamp LED1 selects red-light LED.
In one embodiment, as shown in Fig. 2 security in order to lift power supply adaptor, the power supply adaptor is also wrapped
Fuse F1 is included, the first input end of input rectifying filter circuit is used to connect live wire, input rectifying filtering by fuse F1
Second input of circuit is used to connect zero line.So, if the input side of power supply adaptor is short-circuited or other exceptions so that
When power supply adaptor input side temperature is too high, fuse F1 fusing so that whole power supply adaptor power-off, to avoid the occurrence of safety
Accident.
In one embodiment, as shown in Fig. 2 the power supply adaptor also includes piezo-resistance VR1, piezo-resistance VR1's
Two ends connect the first input end of current rectifying and wave filtering circuit and the second input of current rectifying and wave filtering circuit respectively.
In one embodiment, as shown in Fig. 2 input rectifying filter circuit includes order electric capacity CX1 in parallel, common mode electricity
Sense LF2 and rectifier bridge BD1.Wherein electric capacity CX1 is used to filter DM EMI, and common mode inductance LF2 is disturbed for filtering common mode, rectification
Bridge BD1 is used for rectification, is direct current by AC rectification.
For example, in order to be filtered to the voltage after rectification, input rectifying filter circuit also includes defeated with rectifier bridge BD1
Go out end electrochemical capacitor C2 in parallel.
Wherein in one embodiment, as shown in Fig. 2 start the dash current of moment for buffered sources adapter, on
Stating power supply adaptor also includes that thermistor NTC1, thermistor NTC1 are connected to the first of live wire and input rectifying filter circuit
Between input.
It should be noted that when element is referred to as " being fixed on " another element, it can directly on another element
Or can also there is element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or may be simultaneously present centering elements.Term as used herein " vertical ", " level ", " left side ",
For illustrative purposes only, it is unique implementation method to be not offered as " right side " and similar statement.
Each technical characteristic of above example can be combined arbitrarily, to make description succinct, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics do not exist lance
Shield, is all considered to be the scope of this specification record.
Above example only expresses several embodiments of the present utility model, and its description is more specific and detailed, but simultaneously
Therefore the limitation to utility model patent scope can not be interpreted as.It should be pointed out that for the ordinary skill people of this area
For member, without departing from the concept of the premise utility, various modifications and improvements can be made, these belong to this reality
With new protection domain.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (10)
1. a kind of power supply adaptor of quick startup, it is characterised in that including：Input rectifying filter circuit, electric power management circuit,
Transformer circuit and output filter circuit of pressure-stabilizing, the transformer circuit include armature winding, secondary windings and assists winding；
The input of the input rectifying filter circuit is used to access civil power, the first output end of the input rectifying filter circuit
The armature winding first end is connected, the second output end of the input rectifying filter circuit is used to be grounded；
The electric power management circuit includes power supply chip U1, chip power supply sub-circuit and switching tube Q1, the chip power supply electricity
Road includes electrochemical capacitor C2, electrochemical capacitor C3, diode D5, diode D6, resistance R5 and first resistor string R28；Described first
Resistance string R28 one end is used to connect live wire, and the first resistor string R28 other ends are used to connect zero line, the first resistor string
A series connection node A in R28 is connecting the power input pin VDD of the power supply chip U1, the electrochemical capacitor C3 just respectively
Pole and the negative electrode of the diode D6, the diode D5 and the diode D6 series aiding connections, the anode of the diode D5
The negative pole of the assists winding first end, the end of the assists winding second and the electrochemical capacitor C3 is connected by the resistance R5
Ground connection is respectively used to, the positive pole connection of the electrochemical capacitor C2 connects the anode and the diode D5 of the diode D6 respectively
Negative electrode, the negative pole of the electrochemical capacitor C2 is used to be grounded；
The output pin GATE of the power supply chip U1 connects the grid of the switching tube Q1, the drain electrode connection of the switching tube Q1
The end of the armature winding second, the source electrode of the switching tube Q1 is used to be grounded；
The input of the secondary windings first end connection output filter circuit of pressure-stabilizing, the output filter circuit of pressure-stabilizing
First output end connects the feedback pin FB of the power supply chip U1, and the second output end of the output filter circuit of pressure-stabilizing is used for
Connection load.
2. power supply adaptor as claimed in claim 1, it is characterised in that the chip power supply sub-circuit also includes the electricity of series connection
Resistance R22 and resistance R31, resistance R22 and resistance R31 one end of the series connection connect the resistance R28 and resistance R28A it
Between connecting node, resistance R22 and resistance the R31 other end of the series connection connects the power input of the power supply chip U1 respectively
The negative electrode of pin, the positive pole of the electrochemical capacitor C3 and the diode D6.
3. power supply adaptor as claimed in claim 1, it is characterised in that the chip power supply sub-circuit also includes second resistance
R29, the second resistance string R29 are in parallel with the first resistor string R28 for string, and a string in the second resistance string R29
Interlink point B is connected with the series connection node A.
4. power supply adaptor as claimed in claim 1, it is characterised in that the chip power supply sub-circuit also includes resistance R24,
The resistance R24 is connected between the negative electrode of the anode of the diode D6 and the diode D5.
5. power supply adaptor as claimed in claim 1, it is characterised in that the output filter circuit of pressure-stabilizing includes diode
D2, a RC circuits and voltage stabilizing sub-circuit, the voltage stabilizing sub-circuit include photo-coupler U2, resistance R14, resistance R15, resistance
R18, the controllable source of stable pressure U3 in three ends and the 2nd RC circuits,
The first RC circuits are in parallel with the diode D2, and the anode of the diode D2 connects the secondary windings first
End, the negative electrode of the diode D2 connects the first input end of the photo-coupler U2, the diode by the resistance R18
The negative electrode of D2 also connects the first end of the controllable source of stable pressure U3 in three ends, the controllable source of stable pressure in three ends by the resistance R14
Second end of U3 connects second input of the photo-coupler U2, and the 3rd end of the controllable source of stable pressure U3 in three ends is used to connect
Ground, the two ends of the 2nd RC circuits connect first end and second end of the controllable source of stable pressure U3 in three end respectively；The optocoupler
The output end of clutch connects the feedback pin of the power supply chip U1.
6. power supply adaptor as claimed in claim 5, it is characterised in that the output filter circuit of pressure-stabilizing also includes order simultaneously
The electrochemical capacitor C4 of connection, electrochemical capacitor C5, resistance R21 and common mode inductance LF3；
The positive pole of the electrochemical capacitor C4, the positive pole of the electrochemical capacitor C5, the first end of the resistance R21 and the common mode electricity
The first input end for feeling LF3 connects the negative electrode of the diode D2, the negative pole of the electrochemical capacitor C4, the electrochemical capacitor respectively
Second input of the negative pole of C5, second end of the resistance R21 and the common mode inductance LF3 is respectively used to ground connection；
First output end of the common mode inductance LF3 is used to connect load positive pole, and second output end of the common mode inductance LF3 is used
In connection load negative pole.
7. power supply adaptor as claimed in claim 5, it is characterised in that the output filter circuit of pressure-stabilizing also includes series connection
The positive pole of resistance R30 and indicator lamp LED, the indicator lamp LED connects the negative electrode of the diode D2 by the resistance R30,
The negative pole of the indicator lamp LED is used to be grounded.
8. power supply adaptor as claimed in claim 1, it is characterised in that the electric power management circuit also include diode D3,
The electric resistance array in parallel of diode D4, electric capacity C7, resistance R9, resistance R10, resistance R19 and one；
The resistance R10 is in parallel with the diode D3, and the negative electrode of the diode D3 connects the output of the power supply chip U1
The anode of pin GATE, the diode D3 connects the grid of the switching tube Q1, and the anode also order of the diode D3 is logical
The resistance R19 and the resistance R9 for crossing series connection connect the current detecting pin SENSE of the power supply chip U1；
Connecting node between the resistance R19 and the resistance R9 connects the source electrode of the switching tube Q1, the switching tube Q1
Source electrode by the parallel resistance array ground；
The negative electrode that the anode of the diode D4 connects timing the pin RT, the diode D4 of the power supply chip U1 is used to connect
Ground；
Described electric capacity C7 one end connects the current detecting pin SENSE of the power supply chip U1, and the electric capacity C7 other ends are used for
Ground connection.
9. power supply adaptor as claimed in claim 1, it is characterised in that also including fuse F1, the input rectifying filtering
The first input end of circuit is used to connect live wire, the second input of the input rectifying filter circuit by the fuse F1
For connecting zero line.
10. power supply adaptor as claimed in claim 1, it is characterised in that also including piezo-resistance VR1, the piezo-resistance
The two ends of VR1 connect the first input end of the current rectifying and wave filtering circuit and the second input of the current rectifying and wave filtering circuit respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621395891.6U CN206250964U (en) | 2016-12-19 | 2016-12-19 | The quick power supply adaptor for starting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621395891.6U CN206250964U (en) | 2016-12-19 | 2016-12-19 | The quick power supply adaptor for starting |
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| CN206250964U true CN206250964U (en) | 2017-06-13 |
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| CN201621395891.6U Expired - Fee Related CN206250964U (en) | 2016-12-19 | 2016-12-19 | The quick power supply adaptor for starting |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107785874A (en) * | 2016-08-30 | 2018-03-09 | 南京中兴新软件有限责任公司 | Power protection method, apparatus and circuit |
| CN108282914A (en) * | 2018-03-21 | 2018-07-13 | 深圳戴普森新能源技术有限公司 | Microwave oven supply power circuit and micro-wave oven |
-
2016
- 2016-12-19 CN CN201621395891.6U patent/CN206250964U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107785874A (en) * | 2016-08-30 | 2018-03-09 | 南京中兴新软件有限责任公司 | Power protection method, apparatus and circuit |
| CN107785874B (en) * | 2016-08-30 | 2022-05-10 | 中兴通讯股份有限公司 | Power supply protection method, device and circuit |
| CN108282914A (en) * | 2018-03-21 | 2018-07-13 | 深圳戴普森新能源技术有限公司 | Microwave oven supply power circuit and micro-wave oven |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |