CN207652326U - A kind of high-power ACDC Switching Power Supplies of ultrathin type - Google Patents

A kind of high-power ACDC Switching Power Supplies of ultrathin type Download PDF

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Publication number
CN207652326U
CN207652326U CN201721892794.2U CN201721892794U CN207652326U CN 207652326 U CN207652326 U CN 207652326U CN 201721892794 U CN201721892794 U CN 201721892794U CN 207652326 U CN207652326 U CN 207652326U
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circuit
output
filter
capacitance
external shell
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CN201721892794.2U
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阳宁峰
谢胜涛
刘华刚
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CHONGQING XND COMMUNICATION Co Ltd
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CHONGQING XND COMMUNICATION Co Ltd
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Abstract

The utility model discloses a kind of high-power ACDC Switching Power Supplies of ultrathin type, including external shell and printed circuit board, printed circuit board is located in external shell;Printed circuit board includes dash current amplitude limiter circuit, input filter circuit, current rectifying and wave filtering circuit, inverter circuit, output rectifier and filter, clock oscillation circuit, pwm circuit, driving circuit, protection circuit and detection circuit;Dash current amplitude limiter circuit, input filter circuit, current rectifying and wave filtering circuit, inverter circuit and output rectifier and filter are sequentially connected in series;Clock oscillation circuit, pwm circuit, driving circuit and inverter circuit are sequentially connected in series;The input terminal of protection circuit is connected with output rectifier and filter, and the output end of circuit is protected to be connected with pwm circuit;The input terminal of detection circuit is connected with output rectifier and filter, and the output end of detection circuit is connected with pwm circuit.The utility model is safe and reliable.And with small, power is big, power factor is high etc. a little.

Description

A kind of high-power ACDC Switching Power Supplies of ultrathin type
Technical field
The utility model is related to Switching Power Supplies, more particularly to a kind of high-power ACDC Switching Power Supplies of ultrathin type.
Background technology
Switching Power Supply is to utilize modern power electronics technology, and the time ratio that control switching tube turns on and off remains steady Determine a kind of power supply of output voltage, Switching Power Supply is generally made of pulse width modulation (PWM) control IC and MOSFET.With electricity The development and innovation of power electronic technology so that switch power technology is also innovated constantly.Currently, Switching Power Supply is with small-sized, light Amount and efficient feature are widely used almost all of electronic equipment, are that current electronics and information industry rapid development is indispensable A kind of few power mode.Demand of the market to high efficiency, water cooling method power supply, to power supply complete machine height, shape Size, transfer efficiency, anti-interference and environmental suitability are proposed harsh requirement.
Utility model content
The purpose of the utility model is to provide a kind of high-power ACDC Switching Power Supplies of ultrathin type, providing a kind of safety can The Switching Power Supply leaned on.
In order to solve the above technical problems, the utility model adopts the following technical scheme:
A kind of high-power ACDC Switching Power Supplies of ultrathin type, including external shell and printed circuit board, printed circuit board are located at In external shell;Printed circuit board include dash current amplitude limiter circuit, input filter circuit, current rectifying and wave filtering circuit, inverter circuit, Output rectifier and filter, clock oscillation circuit, pwm circuit, driving circuit, protection circuit and detection circuit;Dash current limits Width circuit, input filter circuit, current rectifying and wave filtering circuit, inverter circuit and output rectifier and filter are sequentially connected in series;Clock oscillation Circuit, pwm circuit, driving circuit and inverter circuit are sequentially connected in series;Protect the input terminal and output rectifier and filter phase of circuit Even, the output end of circuit is protected to be connected with pwm circuit;The input terminal of detection circuit is connected with output rectifier and filter, detection The output end of circuit is connected with pwm circuit.Wherein, dash current amplitude limiter circuit powers on rushing for moment input side for limiting Hit electric current;The clutter that input filter circuit is used to filter clutter existing for power grid and the machine is hindered to generate feeds back to power grid;Rectification Filter circuit is directly rectified into alternating current for power grid AC power;The direct current that inverter circuit is used for after rectification becomes high frequency friendship Galvanic electricity;Output rectifier and filter is used to need to provide reliable and stable DC power supply according to load.
Further include auxiliary circuit in the high-power ACDC Switching Power Supplies of a kind of ultrathin type above-mentioned, one end of auxiliary circuit and Accessory power supply is connected, and the other end is connected with dash current amplitude limiter circuit.
In the high-power ACDC Switching Power Supplies of a kind of ultrathin type above-mentioned, the protection circuit includes output overvoltage circuit, defeated Go out under-voltage circuit, output overcurrent circuit, output short-circuit electricity and thermal-shutdown circuit.
In the high-power ACDC Switching Power Supplies of a kind of ultrathin type above-mentioned, the external shell is whole milling aluminium, external shell Thickness be equal to 20 millimeters.This power supply architecture shape is platypelloid type, and complete machine easily causes to tie in links such as processing, production, transports Structure deforms, and to prevent malformation, when structure design need to fully consider the non-deformability of shape, to solve structural strength and heat Conductivity problems, structure design are designed using whole milling aluminium.Additionally, due to the splendid heat conductivity that whole aluminium Milling Machining technology has, Also indirectly solves the problems, such as the maximum heat conductivity of power supply while increasing mechanical complete machine intensity.
In the high-power ACDC Switching Power Supplies of a kind of ultrathin type above-mentioned, the external shell is at rectangular-shape, the outside The edge of shell and right angle are equipped with screw hole, are equipped with screw in screw hole, the screw hole is counterbore.External shell is equipped with Thickness is larger at counterbore, and external force is resisted using the larger position of this thickness, enable external shell bear bigger impact and It will not deform.
In the high-power ACDC Switching Power Supplies of a kind of ultrathin type above-mentioned, the printed circuit board is equipped with magnetic core of transformer, The magnetic core of transformer is coiled by copper strips, and copper sheet is wound with taking.This power supply characteristic is that be converted to low-voltage big for exchange AC high pressures A kind of Switching Power Supply of electric current output, circuit are undoubtedly a kind of most efficient scheme, complete machine 20mm height using Magnetic isolation transformer It is required that Magnetic isolation transformer must solve the problems, such as the huge turn ratio coiling between input and output of own vol, 70A is in addition exported Load current be maximum bottleneck in circuit to the solution of transformer copper wire line footpath and copper loss.A kind of novel flat is proposed when development Average board-like transformer scheme can meet complete machine height limitation, can not be complete due to the drawback that flat-plate transformer has window area small At the coiling of output high current copper core, primary adds secondary copper sheet mode to increase the current-carrying of transformer using copper strips when design, The utilization of bigger can be obtained in limited magnetic window area.
In the high-power ACDC Switching Power Supplies of a kind of ultrathin type above-mentioned, the auxiliary circuit includes inductance coil L1, two poles Pipe D1, diode D2, capacitance C1, capacitance C2, capacitance C3,7805 circuit of three-terminal voltage-stabilizing integrated and resistance R1,7805 three-terminal voltage-stabilizings Integrated circuit, diode D1, inductance coil L1 and diode D2 are sequentially connected in series, and ground wire is connected in the middle part of inductance coil L1; 7805 circuit of three-terminal voltage-stabilizing integrated are connected with the ground wire, and capacitance C3 and resistance R1 are arranged in parallel, and capacitance C3 and resistance R1 are simultaneously Connection is arranged equal one end and is connected with the ground wire, and the other end and 7805 circuit of three-terminal voltage-stabilizing integrated are connected;Capacitance C1 and capacitance C2 It is connected with the ground wire, the node phase between the other end of capacitance C1 and 7805 circuit of three-terminal voltage-stabilizing integrated and diode D1 Even, capacitance C2 is connected with diode D2.
Compared with prior art, the utility model is safe and reliable.And there is small, power is big, power factor is high etc. A little.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of embodiment of the utility model;
Fig. 2 is the circuit connecting relation schematic diagram of the utility model;
Fig. 3 is a kind of connection relationship diagram of embodiment of auxiliary circuit.
Reference numeral:1- dash current amplitude limiter circuits, 2- input filter circuits, 3- current rectifying and wave filtering circuits, 4- inverter circuits, 5- output rectifier and filters, 6- auxiliary circuits, 7- driving circuits, 8- protect circuit, 9- clock oscillation circuits, 10-PWM electricity Road, 11- detection circuits, 12- external shells, 13- screw holes.
The utility model is further described with reference to the accompanying drawings and detailed description.
Specific implementation mode
The embodiments of the present invention 1:As shown in Figure 1, Figure 2 and Figure 3, the high-power ACDC Switching Power Supplies of a kind of ultrathin type, It is characterised in that it includes external shell 12 and printed circuit board, printed circuit board is located in external shell 12;Printed circuit board packet Include dash current amplitude limiter circuit 1, input filter circuit 2, current rectifying and wave filtering circuit 3, inverter circuit 4, output rectifier and filter 53, Clock oscillation circuit 9, pwm circuit 10, driving circuit 7, protection circuit 8 and detection circuit 11;It is dash current amplitude limiter circuit 1, defeated Enter filter circuit 2, current rectifying and wave filtering circuit 3, inverter circuit 4 and output rectifier and filter 53 to be sequentially connected in series;Clock oscillation circuit 9, pwm circuit 10, driving circuit 7 and inverter circuit 4 are sequentially connected in series;Protect the input terminal and output rectifier and filter of circuit 8 53 are connected, and the output end of protection circuit 8 is connected with pwm circuit 10;The input terminal and output rectifier and filter of detection circuit 11 53 are connected, and the output end of detection circuit 11 is connected with pwm circuit 10.
Further include auxiliary circuit 6, one end of auxiliary circuit 6 is connected with accessory power supply, the other end and dash current amplitude limit electricity Road 1 is connected.The protection circuit 8 include output overvoltage circuit, the under-voltage circuit of output, output overcurrent circuit, output short-circuit electricity and Thermal-shutdown circuit 8.
Embodiment 2:As shown in Figure 1, Figure 2 and Figure 3, a kind of high-power ACDC Switching Power Supplies of ultrathin type, which is characterized in that packet External shell 12 and printed circuit board are included, printed circuit board is located in external shell 12;Printed circuit board includes dash current limit Width circuit 1, input filter circuit 2, current rectifying and wave filtering circuit 3, inverter circuit 4, output rectifier and filter 53, clock oscillation circuit 9, pwm circuit 10, driving circuit 7, protection circuit 8 and detection circuit 11;Dash current amplitude limiter circuit 1, input filter circuit 2, Current rectifying and wave filtering circuit 3, inverter circuit 4 and output rectifier and filter 53 are sequentially connected in series;Clock oscillation circuit 9, pwm circuit 10, Driving circuit 7 and inverter circuit 4 are sequentially connected in series;The input terminal of protection circuit 8 is connected with output rectifier and filter 53, protection electricity The output end on road 8 is connected with pwm circuit 10;The input terminal of detection circuit 11 is connected with output rectifier and filter 53, detection electricity The output end on road 11 is connected with pwm circuit 10.
Further include auxiliary circuit 6, one end of auxiliary circuit 6 is connected with accessory power supply, the other end and dash current amplitude limit electricity Road 1 is connected.The protection circuit 8 include output overvoltage circuit, the under-voltage circuit of output, output overcurrent circuit, output short-circuit electricity and Thermal-shutdown circuit 8.The external shell 12 is whole milling aluminium, and the thickness of external shell 12 is equal to 20 millimeters.The external shell Body 12 is equipped with screw hole 13 at rectangular-shape, the edge of the external shell 12 and right angle, and screw is equipped in screw hole 13, The screw hole 13 is counterbore.The printed circuit board is equipped with magnetic core of transformer, and the magnetic core of transformer is coiled by copper strips, together It takes and is wound with copper sheet.
Embodiment 3:As shown in Figure 1, Figure 2 and Figure 3, a kind of high-power ACDC Switching Power Supplies of ultrathin type, which is characterized in that packet External shell 12 and printed circuit board are included, printed circuit board is located in external shell 12;Printed circuit board includes dash current limit Width circuit 1, input filter circuit 2, current rectifying and wave filtering circuit 3, inverter circuit 4, output rectifier and filter 53, clock oscillation circuit 9, pwm circuit 10, driving circuit 7, protection circuit 8 and detection circuit 11;Dash current amplitude limiter circuit 1, input filter circuit 2, Current rectifying and wave filtering circuit 3, inverter circuit 4 and output rectifier and filter 53 are sequentially connected in series;Clock oscillation circuit 9, pwm circuit 10, Driving circuit 7 and inverter circuit 4 are sequentially connected in series;The input terminal of protection circuit 8 is connected with output rectifier and filter 53, protection electricity The output end on road 8 is connected with pwm circuit 10;The input terminal of detection circuit 11 is connected with output rectifier and filter 53, detection electricity The output end on road 11 is connected with pwm circuit 10.
Further include auxiliary circuit 6, one end of auxiliary circuit 6 is connected with accessory power supply, the other end and dash current amplitude limit electricity Road 1 is connected.The protection circuit 8 include output overvoltage circuit, the under-voltage circuit of output, output overcurrent circuit, output short-circuit electricity and Thermal-shutdown circuit 8.The external shell 12 is whole milling aluminium, and the thickness of external shell 12 is equal to 20 millimeters.The external shell Body 12 is equipped with screw hole 13 at rectangular-shape, the edge of the external shell 12 and right angle, and screw is equipped in screw hole 13, The screw hole 13 is counterbore.The printed circuit board is equipped with magnetic core of transformer, and the magnetic core of transformer is coiled by copper strips, together It takes and is wound with copper sheet.
The auxiliary circuit 6 include inductance coil L1, diode D1, diode D2, capacitance C1, capacitance C2, capacitance C3, 7805 circuit of three-terminal voltage-stabilizing integrated and resistance R1,7805 circuit of three-terminal voltage-stabilizing integrated, diode D1, inductance coil L1 and diode D2 is sequentially connected in series, and ground wire is connected in the middle part of inductance coil L1;7805 circuit of three-terminal voltage-stabilizing integrated are connected with the ground wire, Capacitance C3 and resistance R1 are arranged in parallel, and capacitance C3 and resistance R1 are arranged in parallel equal one end and are connected with the ground wire, the other end with 7805 circuit of three-terminal voltage-stabilizing integrated are connected;Capacitance C1 and capacitance C2 are connected with the ground wire, the other end of capacitance C1 and Node between 7805 circuit of three-terminal voltage-stabilizing integrated and diode D1 is connected, and capacitance C2 is connected with diode D2.
Strict regulations, circuit combination complete machine are proposed to complete machine " 92% " transfer efficiency and " >=0.95 " power factor specification 20mm height, circuit is using a kind of more new happy circuit structure.PFC power factor correction units using " alternating expression power because Number correction " circuit, two groups of power conversions of the circuit are worked with 180 ° of phase alternations respectively, and input and output ripple can be greatly reduced Electric current reduces the volume of magnetic element and increases power device selectivity, final to produce to reduce the surge impact to alternating current Product measured power factor correcting value is really realized to power grid no pollution electricity consumption, and meet the theory of green power utilization close to 1.DC/ DC conversion circuits add " exporting synchronous rectification " technology using " interleaved dual-tube positive excitation ", by control respectively each 50% duty ratio come Two groups of (PCC) powers of driven reduce the problem that duty ratio utilization rate is low in one group of power device of traditional circuit to increase conversion Efficiency and reduction volume.It is big that conventional diode pressure drop pressure is solved additionally by output synchronous rectification, and power consumption is big, heat consumption is high The problems such as, effectively increase the overall efficiency of power supply and the reliability of product.
After tested, the Switching Power Supply of this patent has following input, output characteristics:Exchange input service voltage:198~ 242(220)VAC;Exchange input service frequency:45~55Hz;PFC:≥0.95;DC output voltage:32VDC; Average anode current:70A;Complete machine transfer efficiency:92%;Direct current output line is made an uproar:400mV.

Claims (7)

1. a kind of high-power ACDC Switching Power Supplies of ultrathin type, which is characterized in that including external shell (12) and printed circuit board, print Circuit board processed is located in external shell (12);Printed circuit board include dash current amplitude limiter circuit (1), input filter circuit (2), Current rectifying and wave filtering circuit (3), inverter circuit (4), output rectifier and filter (5), clock oscillation circuit (9), pwm circuit (10), Driving circuit (7), protection circuit (8) and detection circuit (11);It is dash current amplitude limiter circuit (1), input filter circuit (2), whole Stream filter circuit (3), inverter circuit (4) and output rectifier and filter (5) are sequentially connected in series;Clock oscillation circuit (9), PWM electricity Road (10), driving circuit (7) and inverter circuit (4) are sequentially connected in series;Protect the input terminal and output rectifier and filter of circuit (8) (5) it is connected, the output end of protection circuit (8) is connected with pwm circuit (10);The input terminal of detection circuit (11) and output rectification filter Wave circuit (5) is connected, and the output end of detection circuit (11) is connected with pwm circuit (10).
2. the high-power ACDC Switching Power Supplies of a kind of ultrathin type according to claim 1, which is characterized in that further include auxiliary electricity The one end on road (6), auxiliary circuit (6) is connected with accessory power supply, and the other end is connected with dash current amplitude limiter circuit (1).
3. the high-power ACDC Switching Power Supplies of a kind of ultrathin type according to claim 2, which is characterized in that the protection circuit (8) include output overvoltage circuit, the under-voltage circuit of output, output overcurrent circuit, output short-circuit electricity and thermal-shutdown circuit (8).
4. the high-power ACDC Switching Power Supplies of a kind of ultrathin type according to claim 3, which is characterized in that the external shell (12) it is whole milling aluminium, the thickness of external shell (12) is equal to 20 millimeters.
5. the high-power ACDC Switching Power Supplies of a kind of ultrathin type according to claim 4, which is characterized in that the external shell (12) it is equipped with screw hole (13) at rectangular-shape, the edge of the external shell (12) and right angle, is set in screw hole (13) There is screw, the screw hole (13) is counterbore.
6. the high-power ACDC Switching Power Supplies of a kind of ultrathin type according to claim 4, which is characterized in that the printed circuit Plate is equipped with magnetic core of transformer, and the magnetic core of transformer is coiled by copper strips, and copper sheet is wound with taking.
7. the high-power ACDC Switching Power Supplies of a kind of ultrathin type according to claim 6, which is characterized in that the auxiliary circuit (6) include inductance coil L1, diode D1, diode D2, capacitance C1, capacitance C2, capacitance C3,7805 circuit of three-terminal voltage-stabilizing integrated It is sequentially connected in series with resistance R1,7805 circuit of three-terminal voltage-stabilizing integrated, diode D1, inductance coil L1 and diode D2, inductance coil Ground wire is connected in the middle part of L1;7805 circuit of three-terminal voltage-stabilizing integrated are connected with the ground wire, and capacitance C3 and resistance R1 are in parallel Setting, capacitance C3 and resistance R1 are arranged in parallel equal one end and are connected with the ground wire, the other end and the integrated electricity of 7805 three-terminal voltage-stabilizings Road is connected;Capacitance C1 is connected with the ground wire with capacitance C2, the other end of capacitance C1 and 7805 circuit of three-terminal voltage-stabilizing integrated Node between diode D1 is connected, and capacitance C2 is connected with diode D2.
CN201721892794.2U 2017-12-29 2017-12-29 A kind of high-power ACDC Switching Power Supplies of ultrathin type Active CN207652326U (en)

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CN201721892794.2U CN207652326U (en) 2017-12-29 2017-12-29 A kind of high-power ACDC Switching Power Supplies of ultrathin type

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Application Number Priority Date Filing Date Title
CN201721892794.2U CN207652326U (en) 2017-12-29 2017-12-29 A kind of high-power ACDC Switching Power Supplies of ultrathin type

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CN207652326U true CN207652326U (en) 2018-07-24

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