CN203674995U - Power circuit supplying 5V voltage - Google Patents
Power circuit supplying 5V voltage Download PDFInfo
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- CN203674995U CN203674995U CN201320809456.3U CN201320809456U CN203674995U CN 203674995 U CN203674995 U CN 203674995U CN 201320809456 U CN201320809456 U CN 201320809456U CN 203674995 U CN203674995 U CN 203674995U
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Abstract
The utility model provides a power circuit supplying a 5V voltage. The circuit includes a transformer T, a rectification filter circuit, an RCD circuit, a feed transmission circuit, a feed reception circuit, a first voltage output circuit, a second voltage output circuit, and a third voltage output circuit. An input terminal of the rectification filter circuit is connected to a 220V AC power supply via a choke coil, and an output terminal of the rectification filter circuit is connected to an input terminal of the RCD circuit. The feed reception circuit, the first voltage output circuit, the second voltage output circuit and the third voltage output circuit are separately connected to an output terminal of the RCD circuit via the transformer. An input terminal of the feed transmission circuit is connected to the first voltage output circuit, and an output terminal of the feed transmission circuit is connected to the feed reception circuit, which is connected to an output terminal of the rectification filter circuit through a power controller. The circuit is small in size, high in efficiency, precise in voltage stabilizing and small in interference. The circuit can supply multiple voltages simultaneously.
Description
Technical field
The utility model relates to a kind of power circuit, relates in particular to a kind of power circuit of the 5V of supply voltage.
Background technology
Along with the development of integrated circuit, various process chip application are more and more extensive, and the circuit of these chips and chip controls, often needs less direct voltage as operating voltage, and wherein, 5V direct voltage is exactly the conventional operating voltage such as CPU, telecommunication circuit.
Although there have been on the market at present some 220V alternating current can be converted to the galvanic module of 5V and equipment, but, current change-over circuit is all " one to one " mostly, that is to say, whole circuit only has a 220V alternating current input and a 5V DC output end, therefore, can only supply a kind of voltage, for some chips, although they are the operating voltages of 5V, operating current is different, so, just need multiple power supply circuits, can cause high, the bulky problem of cost.
Summary of the invention
For solving above-mentioned defect of the prior art, the utility model provides a kind of power circuit of the 5V of supply voltage, and not only volume is little for this circuit, efficiency is high, and the 5V direct voltage of the different rated current of multichannel can be provided.
For solving the problems of the technologies described above, the utility model scheme comprises: a kind of power circuit of the 5V of supply voltage, it is characterized in that, comprise transformer T, current rectifying and wave filtering circuit, RCD circuit, feedback radiating circuit, feedback receiving circuit, the first voltage follower circuit, second voltage output circuit and tertiary voltage output circuit, the input of described current rectifying and wave filtering circuit is connected in 220V AC power by choking-winding, the output of current rectifying and wave filtering circuit is connected with the input of RCD circuit, feedback receiving circuit, the first voltage follower circuit, second voltage output circuit is connected with the output of RCD circuit by transformer respectively with tertiary voltage output circuit, the input of described feedback radiating circuit is connected with the first voltage follower circuit, the output of feedback radiating circuit is connected with feedback receiving circuit, feedback receiving circuit is connected with the output of current rectifying and wave filtering circuit by power-supply controller of electric.
Further, described transformer T comprises the first winding, the second winding, the tertiary winding, the 4th winding and the 5th winding, the first described winding is input and is provided with input port 1 and input port 2, the second described winding is output and is provided with output port 3 and output port 4, the described tertiary winding is output and is provided with output port 5 and output port 6, the 4th described winding is output and is provided with output port 7 and output port 8, and the 5th described winding is output and is provided with output port 9 and output port 10.
Further, described current rectifying and wave filtering circuit comprises rectifier bridge BD1, capacitor C 1 and resistance R 1, two inputs of BD1 are connected with two outputs of choking-winding L1X respectively, an input of L1X is connected with live wire by fuse FS1, and another input of L1X is connected with zero line by thermistor RTH, and described capacitor C 1 is connected with two outputs of rectifier bridge BD1 respectively, and the minus earth of capacitor C 1, resistance R 1 is in parallel with capacitor C 1.
Further, described RCD circuit comprises diode D1, diode D2, capacitor C 2, resistance R 2 and resistance R 3, the positive pole of D1 respectively and transformer T input port 1 anodal with capacitor C 1 is connected, the negative pole of D1 is connected with one end of R3, the other end of R3 is connected with the negative pole of D2, the positive pole of D2 is connected with the input port 2 of transformer T, and capacitor C 2 and resistance R 2 are in parallel with D1 respectively.
Further, the first described voltage follower circuit comprises diode D3, resistance R 4, capacitor C 3, capacitor C 4, capacitor C 5, resistance R 5, inductance L 1, capacitor C 6 and capacitor C 7, the positive pole of D3 is connected with the output port 3 of transformer T, the negative pole of D3 is connected to one end of L1 by fuse FS2, the other end of L1 is connected to the first positive polarity delivery outlet, one end of R4 is connected with the positive pole of D3, the other end of R4 is connected with one end of C3, the other end of C3 is connected with the negative pole of D3, the positive pole of C4 is connected with the negative pole of D3, the negative pole of C4 is connected with the first voltage negative pole delivery outlet, one end of C5 is connected with the input port 1 of transformer T, the other end of C5 is connected with the negative pole of C4, R5 is in parallel with C4, the positive pole of C6 is connected with the first positive polarity delivery outlet, the negative pole of C6 is connected with the first voltage negative pole delivery outlet, C7 is in parallel with C6.
Further, described feedback radiating circuit comprises resistance R 6, resistance R 7, resistance R 8, resistance R 9, resistance R 10, capacitor C 8, controllable accurate source of stable pressure TL431, optical coupler U1, one end of R6 is connected with the positive pole of C4, the other end of R6 is connected with the first input end of U1, the two ends of R8 are connected with U1 first input end and U1 the second input respectively, one end of R7 is connected with the first positive polarity delivery outlet, the other end of R7 is connected with the B utmost point and C8 one end of TL431 respectively, the other end of C8 is connected with the second input of U1, the K utmost point of TL431 is connected with the second input of U1, the A utmost point of TL431 is connected with one end of R10, the other end of R10 is connected with one end of R9, the other end of R9 is connected with the B utmost point of TL431, the A utmost point of TL431 is also connected with the first voltage negative pole delivery outlet.
Further, described feedback receiving circuit comprises diode D4, capacitor C 9, capacitor C 10, capacitor C 11, resistance R 11, resistance R 12, the positive pole of D4 is connected with the output port 9 of transformer T, the negative pole of D4 is connected with the positive pole of C9, the minus earth of C9, one end of R11 is connected with the C port of power-supply controller of electric TOP244, the other end of R11 is connected with the positive pole of C10, the minus earth of C10, one end of C11 is connected with the C port of power-supply controller of electric TOP244, the other end ground connection of C11, one end of R12 is connected with the X port of power-supply controller of electric TOP244, the other end ground connection of R12, the output port 10 of transformer T, the F port of power-supply controller of electric TOP244, the S port of power-supply controller of electric TOP244 is ground connection respectively, the D port of power-supply controller of electric TOP244 is connected on the input port 2 of transformer T, the L port of power-supply controller of electric TOP244 is connected with the positive pole of capacitor C 1 by resistance R 13, two outputs of U1 are connected with the negative pole of D4 and the C port of power-supply controller of electric TOP244 respectively.
Further, described second voltage output circuit comprises diode D5, resistance R 14, capacitor C 12, capacitor C 13, capacitor C 14, circuit of three-terminal voltage-stabilizing integrated U2, the positive pole of D5 is connected with the output port 5 of transformer T, the negative pole of D5 is connected with the positive pole of C12, the negative pole of C12 is connected with the output port 6 of transformer T, R14 is in parallel with C12, the input pin of U2 is connected with the negative pole of D5, the output pin of U2 is connected with the anodal delivery outlet of second voltage by fuse FS3, the grounding pin of U2 is connected with second voltage negative pole delivery outlet, the positive pole of C13 is connected with the anodal delivery outlet of second voltage, the negative pole of C13 is connected with second voltage negative pole delivery outlet, C14 is in parallel with C13, the negative pole of C12 is also connected with the negative pole of C13.
Further, described tertiary voltage output circuit diode D6, resistance R 15, capacitor C 15, capacitor C 16, capacitor C 17, circuit of three-terminal voltage-stabilizing integrated U3, the positive pole of D6 is connected with the output port 7 of transformer T, the negative pole of D6 is connected with the positive pole of C15, the negative pole of C15 is connected with the output port 8 of transformer T, R15 is in parallel with C15, the input pin of U3 is connected with the negative pole of D6, the output pin of U3 is connected with the anodal delivery outlet of tertiary voltage by fuse FS4, the grounding pin of U3 is connected with tertiary voltage negative pole delivery outlet, the positive pole of C16 is connected with the anodal delivery outlet of tertiary voltage, the negative pole of C16 is connected with tertiary voltage negative pole delivery outlet, C17 is in parallel with C16, the negative pole of C15 is also connected with the negative pole of C17.
The beneficial effects of the utility model are: the utility model delicate structure, have advantages of that volume is little, efficiency is high, voltage stabilizing is accurate, it is little to disturb, simultaneously, by a circuit, a 220V alternating current of input is converted into 3 road 5V direct currents outputs, can be simultaneously provides power supply supply for various chips and circuit.
Brief description of the drawings
Fig. 1 is theory diagram of the present utility model;
Fig. 2 is circuit theory diagrams of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, concrete enforcement of the present utility model is described, should be appreciated that exemplifying embodiment described herein is only for description and interpretation the utility model, and be not used in restriction the utility model.
A kind of power circuit of supplying 5V voltage as shown in Figure 1, it comprises transformer T, current rectifying and wave filtering circuit, RCD circuit, feedback radiating circuit, feedback receiving circuit, the first voltage follower circuit, second voltage output circuit and tertiary voltage output circuit, the input of described current rectifying and wave filtering circuit is connected in 220V AC power by choking-winding, the output of current rectifying and wave filtering circuit is connected with the input of RCD circuit, feedback receiving circuit, the first voltage follower circuit, second voltage output circuit is connected with the output of RCD circuit by transformer respectively with tertiary voltage output circuit, the input of described feedback radiating circuit is connected with the first voltage follower circuit, the output of feedback radiating circuit is connected with feedback receiving circuit, feedback receiving circuit is connected with the output of current rectifying and wave filtering circuit by power-supply controller of electric.
As shown in Figure 2, described transformer T comprises the first winding, the second winding, the tertiary winding, the 4th winding and the 5th winding, the first described winding is input and is provided with input port 1 and input port 2, the second described winding is output and is provided with output port 3 and output port 4, the described tertiary winding is output and is provided with output port 5 and output port 6, the 4th described winding is output and is provided with output port 7 and output port 8, and the 5th described winding is output and is provided with output port 9 and output port 10.
Described current rectifying and wave filtering circuit comprises rectifier bridge BD1, capacitor C 1 and resistance R 1, mainly play the effect of rectification and filtering, two inputs of BD1 are connected with two outputs of choking-winding L1X respectively, an input of L1X is connected with live wire by fuse FS1, another input of L1X is connected with zero line by thermistor RTH, described capacitor C 1 is connected with two outputs of rectifier bridge BD1 respectively, and the minus earth of capacitor C 1, resistance R 1 is in parallel with capacitor C 1, wherein, choking-winding L1X can eliminate the common mode disturbances of feeder ear, fuse FS1 plays over-current and-load protective effect, thermistor RTH plays metering function.
Described RCD circuit comprises diode D1, diode D2, capacitor C 2, resistance R 2 and resistance R 3, is mainly used to absorb the moment peak voltage producing, thus protection transformer and control chip.The positive pole of D1 respectively and transformer T input port 1 anodal with capacitor C 1 is connected, and the negative pole of D1 is connected with one end of R3, and the other end of R3 is connected with the negative pole of D2, and the positive pole of D2 is connected with the input port 2 of transformer T, and capacitor C 2 and resistance R 2 are in parallel with D1 respectively.
The first described voltage follower circuit comprises diode D3, resistance R 4, capacitor C 3, capacitor C 4, capacitor C 5, resistance R 5, inductance L 1, capacitor C 6 and capacitor C 7, and D3 is fast recovery rectifier diode, plays rectified action; C3 works to suppress concussion; protection rectifier diode, c4 is voltage stabilizing prime filter capacitor, absorbs voltage clutter; R5 is dummy load; power supply concussion while preventing rear class zero load, C7 is output filter capacitor, eliminates voltage ripple and clutter; L1 is outputting inductance, strobes.The positive pole of D3 is connected with the output port 3 of transformer T, the negative pole of D3 is connected to one end of L1 by fuse FS2, the other end of L1 is connected to the first positive polarity delivery outlet, one end of R4 is connected with the positive pole of D3, the other end of R4 is connected with one end of C3, the other end of C3 is connected with the negative pole of D3, the positive pole of C4 is connected with the negative pole of D3, the negative pole of C4 is connected with the first voltage negative pole delivery outlet, one end of C5 is connected with the input port 1 of transformer T, the other end of C5 is connected with the negative pole of C4, R5 is in parallel with C4, the positive pole of C6 is connected with the first positive polarity delivery outlet, the negative pole of C6 is connected with the first voltage negative pole delivery outlet, C7 is in parallel with C6.
Described feedback radiating circuit comprises resistance R 6, resistance R 7, resistance R 8, resistance R 9, resistance R 10, capacitor C 8, controllable accurate source of stable pressure TL431, optical coupler U1; be used for ensureing ensureing output voltage in the time of load variations; wherein TL431 is a reference source; R7, R9, R10 form collection regulating networks; R6 is current-limiting resistance; R8 is protective resistance; the input of protection optocoupler U1; the isolation of late-class circuit and the transmission of feedback signal before optocoupler U1 ensures; C8 is the filter capacitor of feedback circuit, prevents from disturbing.One end of R6 is connected with the positive pole of C4, the other end of R6 is connected with the first input end of U1, the two ends of R8 are connected with U1 first input end and U1 the second input respectively, one end of R7 is connected with the first positive polarity delivery outlet, the other end of R7 is connected with the B utmost point and C8 one end of TL431 respectively, the other end of C8 is connected with the second input of U1, the K utmost point of TL431 is connected with the second input of U1, the A utmost point of TL431 is connected with one end of R10, the other end of R10 is connected with one end of R9, the other end of R9 is connected with the B utmost point of TL431, the A utmost point of TL431 is also connected with the first voltage negative pole delivery outlet.
Described feedback receiving circuit comprises diode D4, capacitor C 9, capacitor C 10, capacitor C 11, resistance R 11, resistance R 12, and D4 is fast recovery rectifier diode, C9, C10, C11 is filter circuit, R11 is current-limiting resistance, suppress the charging current of capacitor C 10, the positive pole of D4 is connected with the output port 9 of transformer T, the negative pole of D4 is connected with the positive pole of C9, the minus earth of C9, one end of R11 is connected with the C port of power-supply controller of electric TOP244, the other end of R11 is connected with the positive pole of C10, the minus earth of C10, one end of C11 is connected with the C port of power-supply controller of electric TOP244, the other end ground connection of C11, one end of R12 is connected with the X port of power-supply controller of electric TOP244, the other end ground connection of R12, the output port 10 of transformer T, the F port of power-supply controller of electric TOP244, the S port of power-supply controller of electric TOP244 is ground connection respectively, the D port of power-supply controller of electric TOP244 is connected on the input port 2 of transformer T, the L port of power-supply controller of electric TOP244 is connected with the positive pole of capacitor C 1 by resistance R 13, two outputs of U1 are connected with the negative pole of D4 and the C port of power-supply controller of electric TOP244 respectively, wherein, TOP244 produces pwm signal, R13 is existing voltage acquisition current-limiting resistance.
Described second voltage output circuit comprises diode D5, resistance R 14, capacitor C 12, capacitor C 13, capacitor C 14, circuit of three-terminal voltage-stabilizing integrated U2, U2 ensures output voltage stabilization, D5 is fast recovery rectifier diode, play rectified action, C13, C14 are output filter capacitor, eliminate voltage ripple and clutter, C12 is voltage stabilizing prime filter capacitor, absorb voltage clutter, R14 is dummy load, prevents the effect of power supply concussion when rear class is unloaded.The positive pole of D5 is connected with the output port 5 of transformer T, the negative pole of D5 is connected with the positive pole of C12, the negative pole of C12 is connected with the output port 6 of transformer T, R14 is in parallel with C12, the input pin of U2 is connected with the negative pole of D5, the output pin of U2 is connected with the anodal delivery outlet of second voltage by fuse FS3, the grounding pin of U2 is connected with second voltage negative pole delivery outlet, the positive pole of C13 is connected with the anodal delivery outlet of second voltage, the negative pole of C13 is connected with second voltage negative pole delivery outlet, C14 is in parallel with C13, and the negative pole of C12 is also connected with the negative pole of C13.
Described tertiary voltage output circuit diode D6, resistance R 15, capacitor C 15, capacitor C 16, capacitor C 17, circuit of three-terminal voltage-stabilizing integrated U3, U3 ensures output voltage stabilization, D6 is fast recovery rectifier diode, play rectified action, C16, C17 are output filter capacitor, eliminate voltage ripple and clutter, C15 is voltage stabilizing prime filter capacitor, absorb voltage clutter, R15 is dummy load, prevents the effect of power supply concussion when rear class is unloaded.The positive pole of D6 is connected with the output port 7 of transformer T, the negative pole of D6 is connected with the positive pole of C15, the negative pole of C15 is connected with the output port 8 of transformer T, R15 is in parallel with C15, the input pin of U3 is connected with the negative pole of D6, the output pin of U3 is connected with the anodal delivery outlet of tertiary voltage by fuse FS4, the grounding pin of U3 is connected with tertiary voltage negative pole delivery outlet, the positive pole of C16 is connected with the anodal delivery outlet of tertiary voltage, the negative pole of C16 is connected with tertiary voltage negative pole delivery outlet, C17 is in parallel with C16, and the negative pole of C15 is also connected with the negative pole of C17.
Preferably, FS2, FS3, FS4 are resettable fuse, prevent output overloading or short circuit, it is 7805 circuit of three-terminal voltage-stabilizing integrated that described circuit of three-terminal voltage-stabilizing integrated U2 and circuit of three-terminal voltage-stabilizing integrated U3 all adopt model, described capacitor C 1, capacitor C 4, capacitor C 6, capacitor C 9, capacitor C 10, capacitor C 12, capacitor C 13, capacitor C 15, capacitor C 16 are polar capacitor, and described resistance R 10 is variable resistance.
When after the access of 220V alternating current, after a series of processing such as over commutation, filtering, step-down, voltage stabilizing, power supply control, from the direct voltage of first voltage output end output 5V, 2A, from the direct voltage of second voltage output output 5V, 0.2A, from the direct voltage of tertiary voltage output output 5V, 0.2A.
Should be understood that; the above-mentioned description for preferred embodiment is comparatively detailed; can not therefore think the restriction to the utility model scope of patent protection; those of ordinary skill in the art is under enlightenment of the present utility model; do not departing from the scope situation that the utility model claim protects; can also make the various deformation such as replacement, simple combination, within these all fall into protection range of the present utility model, request protection range of the present utility model should be as the criterion with claims.
Claims (9)
1. supply the power circuit of 5V voltage for one kind, it is characterized in that, comprise transformer T, current rectifying and wave filtering circuit, RCD circuit, feedback radiating circuit, feedback receiving circuit, the first voltage follower circuit, second voltage output circuit and tertiary voltage output circuit, the input of described current rectifying and wave filtering circuit is connected in 220V AC power by choking-winding, the output of current rectifying and wave filtering circuit is connected with the input of RCD circuit, feedback receiving circuit, the first voltage follower circuit, second voltage output circuit is connected with the output of RCD circuit by transformer respectively with tertiary voltage output circuit, the input of described feedback radiating circuit is connected with the first voltage follower circuit, the output of feedback radiating circuit is connected with feedback receiving circuit, feedback receiving circuit is connected with the output of current rectifying and wave filtering circuit by power-supply controller of electric.
2. a kind of power circuit of supplying 5V voltage according to claim 1, it is characterized in that, described transformer T comprises the first winding, the second winding, the tertiary winding, the 4th winding and the 5th winding, the first described winding is input and is provided with input port 1 and input port 2, the second described winding is output and is provided with output port 3 and output port 4, the described tertiary winding is output and is provided with output port 5 and output port 6, the 4th described winding is output and is provided with output port 7 and output port 8, the 5th described winding is output and is provided with output port 9 and output port 10.
3. a kind of power circuit of supplying 5V voltage according to claim 2, it is characterized in that, described current rectifying and wave filtering circuit comprises rectifier bridge BD1, capacitor C 1 and resistance R 1, two inputs of BD1 are connected with two outputs of choking-winding L1X respectively, an input of L1X is connected with live wire by fuse FS1, another input of L1X is connected with zero line by thermistor RTH, described capacitor C 1 is connected with two outputs of rectifier bridge BD1 respectively, and the minus earth of capacitor C 1, resistance R 1 is in parallel with capacitor C 1.
4. a kind of power circuit of supplying 5V voltage according to claim 3, it is characterized in that, described RCD circuit comprises diode D1, diode D2, capacitor C 2, resistance R 2 and resistance R 3, the positive pole of D1 respectively and transformer T input port 1 anodal with capacitor C 1 is connected, the negative pole of D1 is connected with one end of R3, the other end of R3 is connected with the negative pole of D2, and the positive pole of D2 is connected with the input port 2 of transformer T, and capacitor C 2 and resistance R 2 are in parallel with D1 respectively.
5. a kind of power circuit of supplying 5V voltage according to claim 4, it is characterized in that, the first described voltage follower circuit comprises diode D3, resistance R 4, capacitor C 3, capacitor C 4, capacitor C 5, resistance R 5, inductance L 1, capacitor C 6 and capacitor C 7, the positive pole of D3 is connected with the output port 3 of transformer T, the negative pole of D3 is connected to one end of L1 by fuse FS2, the other end of L1 is connected to the first positive polarity delivery outlet, one end of R4 is connected with the positive pole of D3, the other end of R4 is connected with one end of C3, the other end of C3 is connected with the negative pole of D3, the positive pole of C4 is connected with the negative pole of D3, the negative pole of C4 is connected with the first voltage negative pole delivery outlet, one end of C5 is connected with the input port 1 of transformer T, the other end of C5 is connected with the negative pole of C4, R5 is in parallel with C4, the positive pole of C6 is connected with the first positive polarity delivery outlet, the negative pole of C6 is connected with the first voltage negative pole delivery outlet, C7 is in parallel with C6.
6. a kind of power circuit of supplying 5V voltage according to claim 5, it is characterized in that, described feedback radiating circuit comprises resistance R 6, resistance R 7, resistance R 8, resistance R 9, resistance R 10, capacitor C 8, controllable accurate source of stable pressure TL431, optical coupler U1, one end of R6 is connected with the positive pole of C4, the other end of R6 is connected with the first input end of U1, the two ends of R8 are connected with U1 first input end and U1 the second input respectively, one end of R7 is connected with the first positive polarity delivery outlet, the other end of R7 is connected with the B utmost point and C8 one end of TL431 respectively, the other end of C8 is connected with the second input of U1, the K utmost point of TL431 is connected with the second input of U1, the A utmost point of TL431 is connected with one end of R10, the other end of R10 is connected with one end of R9, the other end of R9 is connected with the B utmost point of TL431, the A utmost point of TL431 is also connected with the first voltage negative pole delivery outlet.
7. a kind of power circuit of supplying 5V voltage according to claim 6, it is characterized in that, described feedback receiving circuit comprises diode D4, capacitor C 9, capacitor C 10, capacitor C 11, resistance R 11, resistance R 12, the positive pole of D4 is connected with the output port 9 of transformer T, the negative pole of D4 is connected with the positive pole of C9, the minus earth of C9, one end of R11 is connected with the C port of power-supply controller of electric TOP244, the other end of R11 is connected with the positive pole of C10, the minus earth of C10, one end of C11 is connected with the C port of power-supply controller of electric TOP244, the other end ground connection of C11, one end of R12 is connected with the X port of power-supply controller of electric TOP244, the other end ground connection of R12, the output port 10 of transformer T, the F port of power-supply controller of electric TOP244, the S port of power-supply controller of electric TOP244 is ground connection respectively, the D port of power-supply controller of electric TOP244 is connected on the input port 2 of transformer T, the L port of power-supply controller of electric TOP244 is connected with the positive pole of capacitor C 1 by resistance R 13, two outputs of U1 are connected with the negative pole of D4 and the C port of power-supply controller of electric TOP244 respectively.
8. a kind of power circuit of supplying 5V voltage according to claim 7, it is characterized in that, described second voltage output circuit comprises diode D5, resistance R 14, capacitor C 12, capacitor C 13, capacitor C 14, circuit of three-terminal voltage-stabilizing integrated U2, the positive pole of D5 is connected with the output port 5 of transformer T, the negative pole of D5 is connected with the positive pole of C12, the negative pole of C12 is connected with the output port 6 of transformer T, R14 is in parallel with C12, the input pin of U2 is connected with the negative pole of D5, the output pin of U2 is connected with the anodal delivery outlet of second voltage by fuse FS3, the grounding pin of U2 is connected with second voltage negative pole delivery outlet, the positive pole of C13 is connected with the anodal delivery outlet of second voltage, the negative pole of C13 is connected with second voltage negative pole delivery outlet, C14 is in parallel with C13, the negative pole of C12 is also connected with the negative pole of C13.
9. a kind of power circuit of supplying 5V voltage according to claim 8, it is characterized in that, described tertiary voltage output circuit diode D6, resistance R 15, capacitor C 15, capacitor C 16, capacitor C 17, circuit of three-terminal voltage-stabilizing integrated U3, the positive pole of D6 is connected with the output port 7 of transformer T, the negative pole of D6 is connected with the positive pole of C15, the negative pole of C15 is connected with the output port 8 of transformer T, R15 is in parallel with C15, the input pin of U3 is connected with the negative pole of D6, the output pin of U3 is connected with the anodal delivery outlet of tertiary voltage by fuse FS4, the grounding pin of U3 is connected with tertiary voltage negative pole delivery outlet, the positive pole of C16 is connected with the anodal delivery outlet of tertiary voltage, the negative pole of C16 is connected with tertiary voltage negative pole delivery outlet, C17 is in parallel with C16, the negative pole of C15 is also connected with the negative pole of C17.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320809456.3U CN203674995U (en) | 2013-12-11 | 2013-12-11 | Power circuit supplying 5V voltage |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320809456.3U CN203674995U (en) | 2013-12-11 | 2013-12-11 | Power circuit supplying 5V voltage |
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| CN203674995U true CN203674995U (en) | 2014-06-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103618466A (en) * | 2013-12-11 | 2014-03-05 | 济南诺辉节能技术开发有限公司 | Power circuit for supplying 5V voltage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103618466A (en) * | 2013-12-11 | 2014-03-05 | 济南诺辉节能技术开发有限公司 | Power circuit for supplying 5V voltage |
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Address after: Xiangtai Plaza No. 129 250022 Shandong Province, Ji'nan City Central yingxiongshan Road Patentee after: Shandong Nuo Hui power-saving technology development Corp.,Ltd. Address before: Hongyuan business building, No. 69 spring scenery district sunshine new road Ji'nan City, Shandong province 250024 city 7 floor No. 708 Patentee before: JINAN NUOHUI ENERGY-SAVING TECHNOLOGY DEVELOPMENT CO.,LTD. |
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Effective date of registration: 20180411 Address after: 250021 Ji'nan, Central District, Shandong City Road, the southern part of the shop No. 18 Patentee after: SHANDONG GOLDREAL ENERGY CONSERVATION TECHNOLOGY Co.,Ltd. Address before: Xiangtai Plaza No. 129 250022 Shandong Province, Ji'nan City Central yingxiongshan Road Patentee before: Shandong Nuo Hui power-saving technology development Corp.,Ltd. |
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