CN205385341U - Galvanic dual power supply circuit of output multivoltage - Google Patents
Galvanic dual power supply circuit of output multivoltage Download PDFInfo
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- CN205385341U CN205385341U CN201620206147.0U CN201620206147U CN205385341U CN 205385341 U CN205385341 U CN 205385341U CN 201620206147 U CN201620206147 U CN 201620206147U CN 205385341 U CN205385341 U CN 205385341U
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Abstract
The utility model discloses a galvanic dual power supply circuit of output multivoltage, connect including the commercial power, the commercial power connects electric connection electromagnetic filter and current foldback circuit, electromagnetic filter and current foldback circuit electric connection transformer, filtering rectification of transformer electric connection and reduction voltage circuit, filtering rectification and reduction voltage circuit electric connection to interconnect's the peripheral circuit that charges, be used for changeing 5V reduction voltage circuit and 5V for lithium batteries's the control circuit that charges, two power supply switching circuit, 12V and change the 3.3. V reduction voltage circuit, two power supply switching circuit control commercial power or lithium cell are as the power and export 12V, 5V, 3.3V direct current. The utility model provides a power supply system realizes 12V, 5V, 3.3V's direct current output to satisfy the power supply needs of the equipment of multiple different power consumption demands, and through lithium cell and mains power supply's dual supply mode, has guaranteed the stability of supplying power, has avoided the system to lead to the condition of unable work because of the power failure.
Description
Technical field
This utility model relates to a kind of power supply circuits, especially a kind of double power supply circuit exporting multi-voltage DC electricity.
Background technology
Progress along with science and technology, the signals collecting transmission system of fire-fighting main frame has become the research direction of more and more enterprise, R&D institution, the fire-fighting host signal acquiring and transmission system with various function arises at the historic moment, complex yet with this system, relate to varied electronic device needing different power voltage, such as 12V voltage, 5V voltage, 3.3V voltage, but 12V voltage needed for how providing these electronic equipments by a set of power supply circuits, 5V voltage, 3.3V voltage just become problem demanding prompt solution.
Summary of the invention
The purpose of this utility model is contemplated to solve the above-mentioned problems in the prior art, it is provided that a kind of double power supply circuit exporting multi-voltage DC electricity.
The purpose of this utility model is achieved through the following technical solutions:
A kind of double power supply circuit exporting multi-voltage DC electricity, including mains connection, described mains connection is electrically connected electromagnetic separation and current foldback circuit, described electromagnetic separation and current foldback circuit are electrically connected transformator, described transformator is electrically connected filter rectification and reduction voltage circuit, described filter rectification and reduction voltage circuit are electrically connected to interconnective charging peripheral circuit, for to the charging control circuit of lithium cell charging, dual power supply switching circuit, 12V turns 5V reduction voltage circuit and 5V turns 3.3.V reduction voltage circuit, described dual power supply switching circuit controls civil power or lithium battery as power supply and exports 12V, 5V, 3.3V unidirectional current.
Preferably, described a kind of double power supply circuit exporting multi-voltage DC electricity, wherein: described charging control circuit includes charge controlling chip,
13 feet of described charge controlling chip and 15 feet connect described charging peripheral circuit；
7 feet of described charge controlling chip connect one end of the first resistance, the positive pole of the other end sending and receiving optical diode of described first resistance, the negative pole of described light emitting diode connects the appointment element in the described filter rectification of interconnection and reduction voltage circuit, charging peripheral circuit, charging control circuit, 12V turns 5V reduction voltage circuit, 5V turns 3.3V reduction voltage circuit, dual power supply switching circuit, the first binding post and earth terminal；
6 feet of described charge controlling chip connect one end of the second resistance, 9 feet of the described charge controlling chip that another termination of described second resistance interconnects, one end of first electric capacity and one end of the 3rd resistance, 12 feet of the charge controlling chip that another termination of described first electric capacity interconnects, one end of 4th resistance, charging peripheral circuit, appointment element in charging control circuit, dual power supply switching circuit, 12V turns 5V reduction voltage circuit, 5V turns 3.3.V reduction voltage circuit, first binding post and earth terminal, the other end of described 3rd resistance connects with the other end of described 4th resistance and all receives 8 feet of described charge controlling chip；
4 feet of described charge controlling chip connect one end of the 5th resistance, another of described 5th resistance terminates one end of the second electric capacity, the other end of described second electric capacity connect interconnect one end of the 3rd electric capacity, one end of the 4th electric capacity, one end of the 5th electric capacity, appointment element, dual power supply switching circuit in charging peripheral circuit, charging control circuit, 12V turns 5V reduction voltage circuit, 5V turns 3.3.V reduction voltage circuit, the first binding post and earth terminal；5 feet of another described charge controlling chip of termination of described 3rd electric capacity, 3 feet of another described charge controlling chip of termination of described 4th electric capacity, 16 feet of another described charge controlling chip of termination of described 5th electric capacity；
2 feet of described charge controlling chip connect described dual power supply switching circuit；
1 foot of described charge controlling chip connects one end of the 6th electric capacity of interconnection and one end of the 6th resistance, and in the described charging peripheral circuit that another termination of described 6th electric capacity interconnects, the appointment element in charging control circuit, dual power supply switching circuit, 12V turns 5V reduction voltage circuit, 5V turns 3.3.V reduction voltage circuit, the first binding post and earth terminal；nullAnother of described 6th resistance terminates interconnective dual power supply switching circuit、1 foot of metal-oxide-semiconductor、2 feet、3 feet，4 feet of described metal-oxide-semiconductor connect 14 feet of described charge controlling chip，5 foot-8 feet of described metal-oxide-semiconductor connect and all receive the negative pole of the first Zener diode of interconnection and one end of the first inductance，The positive pole of described first Zener diode is connected to interconnective charging peripheral circuit、Appointment element in charging control circuit、Dual power supply switching circuit、12V turns 5V reduction voltage circuit、5V turns 3.3.V reduction voltage circuit、First binding post、Earth terminal、The negative pole of the first polar capacitor and the negative pole of lithium battery，The described positive pole of the first polar capacitor is connected with the positive pole of lithium battery and is all connected to 10 feet of interconnective charge controlling chip、One end of 7th resistance、The positive pole of the second Zener diode，The other end of described first inductance that another termination of described 7th resistance interconnects and 11 feet of described charge controlling chip，The negative pole of described second Zener diode connects described dual power supply switching circuit.
nullPreferably，Described a kind of double power supply circuit exporting multi-voltage DC electricity，Wherein: described 12V turns 5V reduction voltage circuit 7 and includes LM2576HVS-5.0 chip，1 foot of described LM2576HVS-5.0 chip connects 12V DC output end，2 feet of described LM2576HVS-5.0 chip connect the negative pole of the 3rd Zener diode of interconnection and one end of the second inductance，The positive pole of described 3rd Zener diode connects 3 feet of the LM2576HVS-5.0 chip of interconnection、5 feet、Filter rectification and reduction voltage circuit、Charging peripheral circuit charging control circuit、5V turns 3.3V reduction voltage circuit、Dual power supply switching circuit、First binding post and earth terminal，4 feet of the LM2576HVS-5.0 chip that another termination of described second inductance interconnects、5V voltage wiring terminal and 5V DC output end，And export 5V unidirectional current from 5V DC output end.
Preferably, described a kind of double power supply circuit exporting multi-voltage DC electricity, wherein: described 5V turns 3.3V reduction voltage circuit and includes syllogic linear voltage stabilization chip, 3 feet of described syllogic linear voltage stabilization chip are connected to the described 12V of interconnection and turn the appointment element of 5V reduction voltage circuit, the positive pole of polar capacitor and one end of electric capacity, the negative pole of described polar capacitor, the other end of electric capacity connects and connects described filter rectification and reduction voltage circuit, charging peripheral circuit, charging control circuit, 12V turns 5V reduction voltage circuit, 5V turns the appointment element in 3.3V reduction voltage circuit, dual power supply switching circuit, first binding post and earth terminal；2 feet of described syllogic linear voltage stabilization chip connect the positive pole of the second polar capacitor of interconnection, one end of 8th electric capacity, one end of 11st resistance and 3.3V DC output end, and export 3.3V unidirectional current from 3.3V DC output end, the negative pole of described second polar capacitor, the other end of the 8th electric capacity is connected and is connected to 1 foot of syllogic linear voltage stabilization chip of interconnection, the negative electrode of the second light emitting diode, charging peripheral circuit, charging control circuit, dual power supply switching circuit, 12V turns 5V reduction voltage circuit, 5V turns the appointment element in 3.3V reduction voltage circuit, first binding post and earth terminal, the positive pole of described second light emitting diode connects the other end of described 11st resistance.
The advantage of technical solutions of the utility model is mainly reflected in:
This utility model deft design, simple in construction, the unidirectional current output of 12V, 5V, 3.3V can be realized by a set of electric power system, thus meeting the power supply needs of the equipment of multiple different need for electricity, avoid use multiple power sources the electrical equipment in relatively complicated circuit is powered, and the dual power mode by lithium battery and mains-supplied, it is ensured that the stability of power supply, it is to avoid system is because of the situation causing working that has a power failure.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is circuit diagram of the present utility model.
Detailed description of the invention
The purpose of this utility model, advantage and feature, by for illustration and explanation by the non-limitative illustration of preferred embodiment below.These embodiments are only the prominent examples of application technical solutions of the utility model, all technical schemes taking to be equal to replacement or equivalent transformation and formed, and all fall within the scope that this utility model claims.
A kind of double power supply circuit exporting multi-voltage DC electricity that this utility model discloses, as shown in Figure 1, including mains connection J8, described mains connection J8 is electrically connected electromagnetic separation and current foldback circuit 2, described electromagnetic separation and current foldback circuit 2 are electrically connected transformator T1, described transformator T1 is electrically connected filter rectification and reduction voltage circuit 3, described filter rectification and reduction voltage circuit 3 are electrically connected to interconnective charging peripheral circuit 4, for the charging control circuit 5 powered for lithium battery BT2, dual power supply switching circuit 6, 12V turns 5V reduction voltage circuit 7 and 5V turns 3.3.V reduction voltage circuit 8, described dual power supply switching circuit 6 controls civil power or lithium battery BT2 as power supply and exports 12V, 5V, 3.3V unidirectional current.
Concrete, as shown in Figure 2,2 feet of described mains connection J8 meet switch S1, described switch S1 and connect one end of electric fuse F1,1 foot of one end of electric capacity C35, one end of critesistor R77 and transformator T1 primary side winding that another termination of described electric fuse F1 interconnects；1 foot of described mains connection J8 connects 2 feet of the other end of described electric capacity C35 of interconnection, the other end of critesistor R77 and transformator T1 primary side winding, and foregoing circuit constitutes described electromagnetism overload and current foldback circuit 2.
Described transformer secondary winding is connected to described filter rectification and reduction voltage circuit 3, described filter rectification and reduction voltage circuit 3 include on rectifier bridge that is that be made up of four stabilivolts D29, D30, D33, D34 and that be connected with 3 feet of above-mentioned transformer secondary winding, 4 feet, concrete, 3 feet of described transformer secondary winding connect the positive pole of the diode D29 of interconnection and the negative pole of diode D33, and 4 feet of described transformer secondary winding are connected to the positive pole of the diode D30 of interconnection and the negative pole of diode D34.
The negative pole of described diode D29 is connected and is all connected to the positive pole of polar capacitor C37 and 1 foot of voltage stabilizing chip U9 with the negative pole of described diode D30；
The positive pole of described diode D33 be connected with the positive pole of diode D34 and be all connected to interconnect the negative pole of described polar capacitor C37,3 feet of voltage stabilizing chip U9,5 feet, the positive pole of Zener diode D32, the negative pole of polar capacitor C36, the appointment element in one end of electric capacity C41, charging control circuit 5 in charging peripheral circuit 4,12V turns 5V reduction voltage circuit 7,5V turns 3.3V reduction voltage circuit 8, dual power supply switching circuit the 6, first binding post J16 and earth terminal；
2 feet of described voltage stabilizing chip U9 connect one end of inductance L3 in the negative pole of the described Zener diode D32 of interconnection, charging peripheral circuit 4；
4 feet of described voltage stabilizing chip U9 connect the positive pole of Zener diode D31 in the positive pole of described polar capacitor C36 of interconnection, the other end of inductance L3 and charging peripheral circuit 4；
One end of electric capacity C39 in another termination negative pole of described Zener diode D31 of described electric capacity C41,15 feet of charge controlling chip U10, dual power supply switching circuit 6, charging peripheral circuit 4, another of described electric capacity C39 terminates 13 feet of charge controlling chip U10 in described charging control circuit 5.
7 feet of the charge controlling chip U10 in described charging control circuit 5 connect one end of the first resistance R84, another of described first resistance R84 terminates the positive pole of the first light emitting diode D35, the negative pole of described first light emitting diode D35 connects the appointment element in described filter rectification and reduction voltage circuit 3, charging peripheral circuit 4, charging control circuit 4, and 12V turns 5V reduction voltage circuit 7,5V turns 3.3V reduction voltage circuit 8, dual power supply switching circuit the 6, first binding post J16 and earth terminal.
6 feet of described charge controlling chip U10 connect one end of the second resistance R88, one end of 9 feet of charge controlling chip U10, one end of the first electric capacity C42 and the 3rd resistance R83 that another termination of described second resistance R88 interconnects；
Appointment element in 12 feet of described charge controlling chip U10 that another termination of described first electric capacity C42 interconnects, one end of the 4th resistance R87, described filter rectification and reduction voltage circuit 3, charging peripheral circuit 4, charging control circuit 5,12V turns 5V reduction voltage circuit 7,5V turns 3.3V reduction voltage circuit 8, dual power supply switching circuit the 6, first binding post J16 and earth terminal；
The other end of described 3rd resistance R83 connects with the other end of described 4th resistance R87 and all receives 8 feet of described charge controlling chip.
4 feet of described charge controlling chip U10 connect one end of the 5th resistance R86, another of described 5th resistance R86 terminates one end of the second electric capacity C44, and another termination of described second electric capacity C44 is connected with each other the appointment element in one end of the 3rd electric capacity C45, one end of the 4th electric capacity C46, one end of the 5th electric capacity C47, described filter rectification and reduction voltage circuit 3, charging peripheral circuit 4, charging control circuit 5,12V turns 5V reduction voltage circuit 7,5V turns 3.3V reduction voltage circuit 8, dual power supply switching circuit the 6, first binding post J16 and earth terminal；
5 feet of the described charge controlling chip U10 of another termination of described 3rd electric capacity C45,3 feet of the described charge controlling chip U10 of another termination of described 4th electric capacity C46,16 feet of the described charge controlling chip U10 of another termination of described 5th electric capacity C47.
2 feet of described charge controlling chip U10 connect described dual power supply switching circuit 6；
1 foot of described charge controlling chip U10 connects one end of the 6th electric capacity C40 and one end of the 6th resistance R82, and another of described 6th electric capacity C40 terminates the appointment element in described filter rectification and reduction voltage circuit 3, charging peripheral circuit 4, charging control circuit 5,12V turns 5V reduction voltage circuit 7,5V turns 3.3V reduction voltage circuit 8, dual power supply switching circuit the 6, first binding post J16 and earth terminal；
1 foot of the interconnective metal-oxide-semiconductor Q4 of another termination of described 6th resistance R82, 2 feet, 3 feet, 4 feet of described metal-oxide-semiconductor Q4 connect 14 feet of described charge controlling chip U10, 5 foot-8 feet of described metal-oxide-semiconductor Q4 connect and all receive the negative pole of the first Zener diode D37 of interconnection and one end of the first inductance L4, the positive pole of described first Zener diode D37 is connected to described filter rectification and the reduction voltage circuit 3 of interconnection, charging peripheral circuit 4, appointment element in charging control circuit 5, 12V turns 5V reduction voltage circuit 7, 5V turns 3.3V reduction voltage circuit 8, dual power supply switching circuit 6, first binding post J16, earth terminal, the negative pole of the first polar capacitor C43 and the negative pole of lithium battery BT2；
The described positive pole of the first polar capacitor C43 is connected with the positive pole of lithium battery BT2 and is all connected to the positive pole of 10 feet of charge controlling chip U10 of interconnection, one end of the 7th resistance R85, the second Zener diode D36, the other end of the described first inductance L4 that another termination of described 7th resistance R85 interconnects and 11 feet of charge controlling chip U10, the negative pole of described second Zener diode D36 meets the 3rd contact M3 of described dual power supply switching circuit 6 repeat circuit.
Further, described dual power supply switching circuit includes the 7th electric capacity C38 and the eight resistance R79 being connected to 2 feet of described charge controlling chip U10；
Described 7th electric capacity C38 connects described filter rectification and reduction voltage circuit 3, charging peripheral circuit 4, the appointment element of charging control circuit, 12V turns 5V reduction voltage circuit 7,5V turns 3.3V reduction voltage circuit the 8, first binding post J16 and earth terminal；
Described 8th resistance R79 connects one end of the 9th resistance R80 of interconnection, one end of tenth resistance R78, the positive pole of the first diode D1 and the first contact M1 of relay, 1 foot-3 foot of the described 6th resistance R82 and metal-oxide-semiconductor Q4 of another termination of described 9th resistance R80, the base stage of another termination audion Q3 of described tenth resistance R78, one end of the emitter stage connecting resistance R81 of described audion Q3, the described 7th electric capacity C38 that another termination of described resistance R81 interconnects, filter rectification and reduction voltage circuit 3, charging peripheral circuit 4, appointment element in charging control circuit, 12V turns 5V reduction voltage circuit 7, 5V turns 3.3V reduction voltage circuit 8, first binding post J16 and earth terminal；
The colelctor electrode of described audion Q3 connects the coil of described relay and the positive pole of the second diode D2, described relay coil is connected with the negative pole of described second diode D2 and is all connected to the second contact M2,12V voltage wiring terminal J11 and 12V DC output end of the negative pole of described first diode D1 of interconnection, relay, described 12V DC output end output 12V unidirectional current；
3rd contact M3 of described relay receives the negative electrode of the second Zener diode D36 in described charging control circuit 5.
Further, described 12V turns 5V reduction voltage circuit 7 and includes LM2576HVS-5.0 chip U11,1 foot of described LM2576HVS-5.0 chip U11 connects described 12V DC output end, and 2 feet of described LM2576HVS-5.0 chip U11 connect the negative pole of the 3rd Zener diode D38 and one end of the second inductance L5；
The positive pole of described 3rd Zener diode D38 receives 3 feet of interconnective described LM2576HVS-5.0 chip U11,5 feet, filter rectification and reduction voltage circuit 3, charging peripheral circuit 4, charging control circuit, 5V turn 3.3V reduction voltage circuit 8, dual power supply switching circuit the 6, first binding post J16 and earth terminal；
The other end of described second inductance L5 receives 4 feet of interconnective LM2576HVS-5.0 chip U11,5V turns 3.3V reduction voltage circuit, 5V voltage wiring terminal J17 and 5V DC output end, and exports 5V unidirectional current from 5V DC output end.
Further, described 5V turns 3.3V reduction voltage circuit and includes syllogic linear voltage stabilization chip U12, 3 feet of described syllogic linear voltage stabilization chip U12 are connected to the second above-mentioned inductance L5, 4 feet of LM2576HVS-5.0 chip U11, 5V voltage wiring terminal J17, 5V DC output end, the positive pole of polar capacitor C48 and one end of electric capacity C40, the negative pole of described polar capacitor C48, the other end of electric capacity C40 connects and connects described filter rectification and reduction voltage circuit 3, charging peripheral circuit 4, charging control circuit 5, 12V turns 5V reduction voltage circuit 7, 5V turns the appointment element in 3.3V reduction voltage circuit 8, dual power supply switching circuit 6, first binding post J16 and earth terminal.
2 feet of described syllogic linear voltage stabilization chip U12 connect the positive pole of the second polar capacitor C50 of interconnection, one end of the 8th electric capacity C51, one end of the 11st resistance R21 and 3.3V DC output end, and export 3.3V unidirectional current from 3.3V DC output end；The negative pole of described second polar capacitor C50, the 8th electric capacity C51 the other end be connected and be all connected to the described filter rectification that interconnects and reduction voltage circuit 3, charging peripheral circuit 4, charging control circuit 5,12V turn 5V reduction voltage circuit 7, dual power supply switching circuit 6, binding post J16 and earth terminal, 1 foot of syllogic linear voltage stabilization chip U12 and the second light emitting diode D3 negative electrode, the positive pole of described second light emitting diode D3 connects the other end of described 11st resistance R21.
During electric power system of the present utility model work, the 220V voltage of civil power input is after described transformator T1 is reduced to 10V, it is raised to 18V after filtered rectification, lithium battery BT2 is charged by described charging control circuit 5 by described 18V unidirectional current after described voltage stabilizing chip U9 is reduced to 12V, now, described first light emitting diode D35 is bright, represents and lithium battery is being charged；Meanwhile, described dual power supply switching circuit 6 controls civil power and is powered, and exports 12V unidirectional current.
Described 12V turns 5V reduction voltage circuit 7 and 12V unidirectional current is depressured to 5V unidirectional current exports to electrical equipment, and meanwhile, described 12V turns the 12V unidirectional current of 5V reduction voltage circuit output and also turns 3.3V reduction voltage circuit 8 through described 5V and be depressured to 3.3V and export to corresponding electrical equipment.
After cutting off mains-supplied, whole circuit is switched to lithium battery BT2 powering mode, the capacity according to described lithium battery BT2 by described dual power supply switching circuit 6, specifies the unidirectional current of the above-mentioned voltage of time for electrical equipment supply.
This utility model still has numerous embodiments, all employing equivalents or equivalent transformation and all technical schemes of being formed, all falls within protection domain of the present utility model.
Claims (4)
- null1. the double power supply circuit exporting multi-voltage DC electricity，Including mains connection (J8)，It is characterized in that: described mains connection (J8) is electrically connected electromagnetic separation and current foldback circuit (2)，Described electromagnetic separation and current foldback circuit (2) are electrically connected transformator (T1)，Described transformator (T1) is electrically connected filter rectification and reduction voltage circuit (3)，Described filter rectification and reduction voltage circuit (3) are electrically connected to interconnective charging peripheral circuit (4)、For the charging control circuit (5) charged to lithium battery (BT2)、Dual power supply switching circuit (6)、12V turns 5V reduction voltage circuit (7) and 5V turns 3.3.V reduction voltage circuit (8)，Described dual power supply switching circuit (6) controls civil power or lithium battery (BT2) as power supply and exports 12V、5V、3.3V unidirectional current.
- 2. a kind of double power supply circuit exporting multi-voltage DC electricity according to claim 1, it is characterised in that: described charging control circuit (5) includes charge controlling chip (U10),13 feet of described charge controlling chip (U10) and 15 feet connect described charging peripheral circuit (5)；7 feet of described charge controlling chip (U10) connect one end of the first resistance (R84), the positive pole of other end sending and receiving optical diode (D35) of described first resistance (R84), the negative pole of described light emitting diode (D35) connects the appointment element in the described filter rectification of interconnection and reduction voltage circuit (3), charging peripheral circuit (4), charging control circuit (5), 12V turns 5V reduction voltage circuit (7), 5V turns 3.3V reduction voltage circuit (8), dual power supply switching circuit (6), the first binding post (J16) and earth terminal；null6 feet of described charge controlling chip (U10) connect one end of the second resistance (R88)，9 feet of the described charge controlling chip (U10) that another termination of described second resistance (R88) interconnects、One end of first electric capacity (C42) and one end of the 3rd resistance (R83),12 feet of the charge controlling chip (U10) that another termination of described first electric capacity (C42) interconnects、One end of 4th resistance (R87)、Charging peripheral circuit (4)、Appointment element in charging control circuit (5)、Dual power supply switching circuit (6)、12V turns 5V reduction voltage circuit (7)、5V turns 3.3.V reduction voltage circuit (8)、First binding post (J16) and earth terminal，The other end of described 3rd resistance (R83) connects with the other end of described 4th resistance (R87) and all receives 8 feet of described charge controlling chip (U10)；4 feet of described charge controlling chip (U10) connect one end of the 5th resistance (R86), another of described 5th resistance (R86) terminates one end of the second electric capacity (C44), the other end of described second electric capacity (C44) connects the one end of the 3rd electric capacity (C45) interconnected, one end of 4th electric capacity (C46), one end of 5th electric capacity (C47), charging peripheral circuit (4), appointment element in charging control circuit (5), dual power supply switching circuit (6), 12V turns 5V reduction voltage circuit (7), 5V turns 3.3.V reduction voltage circuit (8), first binding post (J16) and earth terminal；5 feet of another the described charge controlling chip of termination (U10) of described 3rd electric capacity (C45), 3 feet of another the described charge controlling chip of termination (U10) of described 4th electric capacity (C46), 16 feet of another the described charge controlling chip of termination (U10) of described 5th electric capacity (C47)；2 feet of described charge controlling chip (U10) connect described dual power supply switching circuit (6)；1 foot of described charge controlling chip (U10) connects one end of the 6th electric capacity (C40) of interconnection and one end of the 6th resistance (R82), and the described charging peripheral circuit (4) that another termination of described 6th electric capacity (C40) interconnects, appointment element, dual power supply switching circuit (6) in charging control circuit (5), 12V turns 5V reduction voltage circuit (7), 5V turns 3.3.V reduction voltage circuit (8), the first binding post (J16) and earth terminal；nullAnother of described 6th resistance (R82) terminates interconnective dual power supply switching circuit (6)、1 foot of metal-oxide-semiconductor (Q4)、2 feet、3 feet，4 feet of described metal-oxide-semiconductor (Q4) connect 14 feet of described charge controlling chip (U10)，5 foot-8 feet of described metal-oxide-semiconductor (Q4) connect and all receive the negative pole of the first Zener diode (D37) of interconnection and one end of the first inductance (L4)，The positive pole of described first Zener diode (D37) is connected to interconnective charging peripheral circuit (4)、Appointment element in charging control circuit (5)、Dual power supply switching circuit (6)、12V turns 5V reduction voltage circuit (7)、5V turns 3.3.V reduction voltage circuit (8)、First binding post (J16)、Earth terminal、The negative pole of the first polar capacitor (C43) and the negative pole of lithium battery (BT2)，The positive pole of described first polar capacitor (C43) is connected with the positive pole of lithium battery (BT2) and is all connected to 10 feet of interconnective charge controlling chip (U10)、One end of 7th resistance (R85)、The positive pole of the second Zener diode (D36)，The other end of described first inductance (L4) that another termination of described 7th resistance (R85) interconnects and 11 feet of described charge controlling chip (U10)，The negative pole of described second Zener diode (D36) connects described dual power supply switching circuit (6).
- null3. a kind of double power supply circuit exporting multi-voltage DC electricity according to claim 2，It is characterized in that: described 12V turns 5V reduction voltage circuit (7) and includes LM2576HVS-5.0 chip (U11)，1 foot of described LM2576HVS-5.0 chip (U11) connects 12V DC output end，2 feet of described LM2576HVS-5.0 chip (U11) connect the negative pole of the 3rd Zener diode (D38) of interconnection and one end of the second inductance (L5)，The positive pole of described 3rd Zener diode (D38) connects 3 feet of the LM2576HVS-5.0 chip (U11) of interconnection、5 feet、Filter rectification and reduction voltage circuit (3)、Charging peripheral circuit (4)、Charging control circuit (5)、5V turns 3.3V reduction voltage circuit (8)、Dual power supply switching circuit (6)、First binding post (J16)、And earth terminal；4 feet of LM2576HVS-5.0 chip (U11), 5V voltage wiring terminal (J17) and the 5V DC output end that another termination of described second inductance (L5) interconnects, and export 5V unidirectional current from 5V DC output end.
- null4. a kind of double power supply circuit exporting multi-voltage DC electricity according to claim 3，It is characterized in that: described 5V turns 3.3V reduction voltage circuit (8) and includes syllogic linear voltage stabilization chip (U12)，3 feet of described syllogic linear voltage stabilization chip (U12) are connected to the described 12V of interconnection and turn the appointment element of 5V reduction voltage circuit (7)、The positive pole of polar capacitor (C48) and one end of electric capacity (C40)，The negative pole of described polar capacitor (C48)、The other end of electric capacity (C40) connects and connects described filter rectification and reduction voltage circuit (3)、Charging peripheral circuit (4)、Charging control circuit (5)、12V turns 5V reduction voltage circuit (7)、5V turns the appointment element in 3.3V reduction voltage circuit (8)、Dual power supply switching circuit (6)、First binding post (J16) and earth terminal；null2 feet of described syllogic linear voltage stabilization chip (U12) connect the positive pole of second polar capacitor (C50) of interconnection、One end of 8th electric capacity (C51)、One end of 11st resistance (R21) and 3.3V DC output end，And export 3.3V unidirectional current from 3.3V DC output end，The negative pole of described second polar capacitor (C50)、The other end of the 8th electric capacity (C51) is connected and is connected to 1 foot of syllogic linear voltage stabilization chip (U12) of interconnection、The negative electrode of the second light emitting diode (D3)、Charging peripheral circuit (4)、Charging control circuit (5)、Dual power supply switching circuit (6)、12V turns 5V reduction voltage circuit (7)、5V turns the appointment element in 3.3V reduction voltage circuit (8)、First binding post (J16) and earth terminal，The positive pole of described second light emitting diode (D3) connects the other end of described 11st resistance (R21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201620206147.0U CN205385341U (en) | 2016-03-17 | 2016-03-17 | Galvanic dual power supply circuit of output multivoltage |
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| CN201620206147.0U CN205385341U (en) | 2016-03-17 | 2016-03-17 | Galvanic dual power supply circuit of output multivoltage |
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| CN205385341U true CN205385341U (en) | 2016-07-13 |
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| CN201620206147.0U Expired - Fee Related CN205385341U (en) | 2016-03-17 | 2016-03-17 | Galvanic dual power supply circuit of output multivoltage |
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| CN (1) | CN205385341U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105680556A (en) * | 2016-03-17 | 2016-06-15 | 苏州太阳都信息科技有限公司 | Dual-power-source power supply circuit for outputting multi-voltage direct current |
| CN106624269A (en) * | 2016-12-05 | 2017-05-10 | 重庆优盾焊接材料有限公司 | Alternating-current electric welding machine based on adjustable voltage stabilizing circuit design |
| CN107733241A (en) * | 2017-11-14 | 2018-02-23 | 深圳睿舍智能科技有限公司 | Double primary side insulating power supplies |
-
2016
- 2016-03-17 CN CN201620206147.0U patent/CN205385341U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105680556A (en) * | 2016-03-17 | 2016-06-15 | 苏州太阳都信息科技有限公司 | Dual-power-source power supply circuit for outputting multi-voltage direct current |
| CN106624269A (en) * | 2016-12-05 | 2017-05-10 | 重庆优盾焊接材料有限公司 | Alternating-current electric welding machine based on adjustable voltage stabilizing circuit design |
| CN107733241A (en) * | 2017-11-14 | 2018-02-23 | 深圳睿舍智能科技有限公司 | Double primary side insulating power supplies |
| CN107733241B (en) * | 2017-11-14 | 2024-01-26 | 深圳睿舍智能科技有限公司 | Dual primary side isolated power supply |
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