CN102664527A - High-current switch power supply and high-current switch power supply system - Google Patents
High-current switch power supply and high-current switch power supply system Download PDFInfo
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Abstract
The embodiment of the invention discloses a high-current switch power supply and a high-current switch power supply system. The high-current switch power supply in the embodiment of the invention consists of a rectifier module, a power conversion module, a driving module and a current doubler rectifier module, wherein the rectifier module is used for filtering the input three-phase alternating-current signals by an electromagnetic interference power supply filter so as to effectively prevent the electromagnetic interference; the driving module provides PWM (Pulse Width Modulation) driving signals to the power conversion module and can control the duty cycle of the output signals of the power conversion module; the power conversion module adopts a passive soft switching absorption circuit technology, so that an IGBT (Insulated Gate Bipolar Transistor) module realizes zero-voltage switching on and zero-current turning off, the efficiency of the whole machine is improved, the power factor of the whole machine is increased, and the service life of the whole machine is prolonged; and the current doubler rectifier module utilizes an RCD (Route Control Digit) absorption circuit and a filter circuit to effectively absorb switch ripples of a Schottky diode, reduce the output ripple coefficient and the total harmonic current and greatly improve the reliability of a high-power rectifier circuit.
Description
Technical field
The present invention relates to the power technology field, relate in particular to a kind of high-current switch power supply and high-current switch power-supply system.
Background technology
At present, electrolysis, plating, storage battery etc. increase the increasing demand of industrial power device output current, and therefore, it is particularly important that the design of high-current switch power supply seems.
Existing high-current switch power supply realizes that big electric current output is mainly realized by following mode:
By the alternating current of electrical network through behind the Industrial Frequency Transformer buck or boost; Through obtaining high power DC output after a plurality of rectifier transformer parallel connection rectifications; But current efficiency that there is the complete machine output voltage in it is low, power factor is little, bulky, shortcoming such as quality is heavy, electric energy is seriously polluted, and existing high-current switch power supply reliability and validity are poor.
Summary of the invention
The embodiment of the invention provides a kind of high-current switch power supply and high-current switch power-supply system, is used to improve the reliability and the validity of high-current switch power supply.
For solving the problems of the technologies described above, the embodiment of the invention provides following technical scheme:
A kind of high-current switch power supply comprises:
Be used for the three-phase ac signal of input is converted into the rectification module of direct current signal; Wherein, Above-mentioned rectification module comprises: be used for the three-phase ac signal of above-mentioned input is carried out the electromagnetic interference power filter of filtering, and be connected with the output of above-mentioned electromagnetic interference power filter, be used for the input signal of above-mentioned electromagnetic interference power filter is carried out the rectification circuit of rectification; Wherein, the output signal of above-mentioned rectification circuit is the output signal of above-mentioned rectification module;
Be connected with the output of above-mentioned rectification module; Be used for the output signal of above-mentioned rectification module is converted into the Power Conversion module of AC signal; Wherein, above-mentioned Power Conversion module absorbs circuit, single tube insulated gate bipolar transistor IGBT module and high frequency transformer circuits built by passive flexible switch;
Be connected with the above-mentioned IGBT module of above-mentioned Power Conversion module; Be used for providing the driver module of pulse width modulation (PWM) drive signal to above-mentioned Power Conversion module; So that, make above-mentioned Power Conversion module the output signal of above-mentioned rectification module is converted into the AC signal of different duty through adjustment said PWM drive signal;
Be connected with the output of institute Power Conversion module; What be used for output signal rectification with above-mentioned Power Conversion module and be the heavy DC signal doubly flows rectification module; Wherein, above-mentioned times of stream rectification module absorbs circuit and filter capacitor structure by Schottky diode, high-frequency inductor, RCD.
Further, above-mentioned Power Conversion module absorbs circuit, single tube insulated gate bipolar transistor IGBT module and high frequency transformer circuits built by passive flexible switch, comprising:
Above-mentioned Power Conversion module absorbs circuit, second passive flexible switch absorption circuit, an IGBT module, the 2nd IGBT module, the 3rd IGBT module, the 4th IGBT module and high frequency transformer circuits built by first passive flexible switch;
Wherein, above-mentioned high frequency transformer circuit comprises:
High frequency transformer, first high-frequency inductor and first capacitance;
Above-mentioned first high-frequency inductor is connected with first branch road of above-mentioned high frequency transformer prime;
Above-mentioned first capacitance is connected with second branch road of above-mentioned high frequency transformer prime;
Wherein, above-mentioned first passive flexible switch absorption circuit comprises:
Diode 1, diode 2, the first electric capacity, second electric capacity and the 3rd electric capacity;
The anode of above-mentioned diode 1 is connected with the cathode output end of above-mentioned rectification module;
The negative electrode of above-mentioned diode 1 is connected with an end of above-mentioned first electric capacity and an end of above-mentioned second electric capacity respectively;
The other end of above-mentioned first electric capacity is connected with the emitter of an above-mentioned IGBT module and the collector electrode of above-mentioned the 2nd IGBT module respectively;
The other end of above-mentioned second electric capacity is connected with an end of above-mentioned the 3rd electric capacity and the anode of above-mentioned diode 2 respectively;
The other end of above-mentioned the 3rd electric capacity is connected with the input of above-mentioned first capacitance;
The negative electrode of above-mentioned diode 2 is connected with the cathode output end of above-mentioned rectification module;
Wherein, above-mentioned second passive flexible switch absorption circuit comprises:
Diode 3, diode 4, the four electric capacity, the 5th electric capacity and the 6th electric capacity;
The anode of above-mentioned diode 3 is connected with the cathode output end of above-mentioned rectification module;
The negative electrode of above-mentioned diode 3 is connected with an end of above-mentioned the 4th electric capacity and an end of above-mentioned the 5th electric capacity respectively;
The other end of above-mentioned the 4th electric capacity is connected with the emitter of above-mentioned the 3rd IGBT module and the collector electrode of above-mentioned the 4th IGBT module respectively;
The other end of above-mentioned the 5th electric capacity is connected with an end of above-mentioned the 6th electric capacity and the anode of above-mentioned diode 4 respectively;
The other end of above-mentioned the 6th electric capacity is connected with the input of above-mentioned first high-frequency inductor;
The negative electrode of above-mentioned diode 4 is connected with the cathode output end of above-mentioned rectification module;
Wherein, the collector electrode of an above-mentioned IGBT module is connected with the cathode output end of above-mentioned rectification module; The emitter of above-mentioned the 2nd IGBT module is connected with the cathode output end of above-mentioned rectification module, and the collector electrode of above-mentioned the 2nd IGBT module is connected with the emitter of an above-mentioned IGBT module; The collector electrode of above-mentioned the 3rd IGBT module is connected with the cathode output end of above-mentioned rectification module, and the emitter of above-mentioned the 3rd IGBT module is connected with the input of above-mentioned first high-frequency inductor; The emitter of above-mentioned the 4th IGBT module is connected with the cathode output end of above-mentioned rectification module, and the collector electrode of above-mentioned the 4th IGBT module is connected with the emitter of above-mentioned the 3rd IGBT module;
Wherein, the output signal of level is the output signal of above-mentioned Power Conversion module behind the above-mentioned high frequency transformer.
Further, above-mentioned times of stream rectification module absorbs circuit and filter capacitor structure by Schottky diode, high-frequency inductor, RCD, comprising:
Above-mentioned times of stream rectification module comprises Schottky diode 1, Schottky diode 2, Schottky diode 3; Schottky diode 4, the second high-frequency inductors, the 3rd high-frequency inductor; The one RCD absorbs circuit, and the 2nd RCD absorbs circuit, first filter capacitor and second filter capacitor;
Wherein, above-mentioned RCD absorption circuit comprises:
Diode 5, the seven electric capacity and first resistance;
Above-mentioned the 2nd RCD absorbs circuit and comprises:
Diode 6, the eight electric capacity and second resistance;
Wherein, the negative electrode of the negative electrode of above-mentioned Schottky diode 1, above-mentioned Schottky diode 2 is connected with the cathode output end of above-mentioned Power Conversion module respectively; The negative electrode of the negative electrode of above-mentioned Schottky diode 3, above-mentioned Schottky diode 4 is connected with the cathode output end of above-mentioned Power Conversion module respectively; The anode interconnect of the anode of the anode of the anode of above-mentioned Schottky diode 1, above-mentioned Xiao Te diode 2, above-mentioned Xiao Te diode 3 and above-mentioned Xiao Te diode 4;
Above-mentioned second high-frequency inductor is connected on the positive pole output branch road of above-mentioned times of stream rectification module;
Above-mentioned the 3rd high-frequency inductor is connected on the negative pole output branch road of above-mentioned times of stream rectification module;
Above-mentioned first filter capacitor and the series connection of second filter capacitor; And the end that above-mentioned first filter capacitor is not connected with above-mentioned second filter capacitor is connected with the output of above-mentioned second high-frequency inductor, and the end that above-mentioned second filter capacitor is not connected with above-mentioned first filter capacitor is connected with the output of above-mentioned the 3rd high-frequency inductor;
The anode of above-mentioned diode 5 is connected with the cathode output end of above-mentioned Power Conversion module;
The negative electrode of above-mentioned diode 5 is connected with an end of above-mentioned the 7th electric capacity and an end of above-mentioned first resistance respectively;
The other end of above-mentioned first resistance is connected on the connection line of above-mentioned first filter capacitor and above-mentioned second filter capacitor;
The other end of above-mentioned the 7th electric capacity is connected with an end of above-mentioned the 8th electric capacity;
The other end of above-mentioned the 8th electric capacity is connected with an end of above-mentioned second resistance and the anode of above-mentioned diode 6 respectively;
The other end of above-mentioned second resistance is connected with the output of above-mentioned the 3rd high-frequency inductor;
The negative electrode of above-mentioned diode 6 is connected with the cathode output end of above-mentioned Power Conversion module.
Further, above-mentioned driver module is made up by digital signal processor DSP.
A kind of high-current switch power-supply system is characterized in that, comprising:
Plural switch power module, wherein, above-mentioned plural switch power module parallel connection;
Wherein, above-mentioned switch power module comprises:
Be used for the three-phase ac signal of input is converted into the rectification module of direct current signal; Wherein, Above-mentioned rectification module comprises: be used for the three-phase ac signal of above-mentioned input is carried out the electromagnetic interference power filter of filtering, and be connected with the output of above-mentioned electromagnetic interference power filter, be used for the input signal of above-mentioned electromagnetic interference power filter is carried out the rectification circuit of rectification; Wherein, the output signal of above-mentioned rectification circuit is the output signal of above-mentioned rectification module.
Be connected with the output of above-mentioned rectification module; Be used for the output signal of above-mentioned rectification module is converted into the Power Conversion module of AC signal; Wherein, above-mentioned Power Conversion module absorbs circuit, single tube insulated gate bipolar transistor IGBT module and high frequency transformer circuits built by passive flexible switch;
Be connected with the above-mentioned IGBT module of above-mentioned Power Conversion module; Be used for providing the driver module of pulse width modulation (PWM) drive signal to above-mentioned Power Conversion module; So that through adjustment said PWM drive signal, make above-mentioned Power Conversion module the direct current signal of above-mentioned rectification module output is converted into the AC signal of different duty;
Be connected with the output of above-mentioned rectification module; What be used for output signal rectification with above-mentioned Power Conversion module and be the heavy DC signal doubly flows rectification module; Wherein, above-mentioned times of stream rectification module absorbs circuit and filter capacitor structure by Schottky diode, high-frequency inductor, RCD.
Therefore in the high-current switch power supply of the embodiment of the invention, on the one hand, rectification module carries out filtering by electromagnetic interference power filter to the three-phase ac signal of importing, and has effectively prevented electromagnetic interference, has improved the operational reliability of high-current switch power supply; On the other hand, to the Power Conversion module PWM is provided drive signal, can realizes control the duty ratio of the output signal of Power Conversion module by driver module; The Power Conversion module adopts passive flexible switch to absorb circuit engineering; Make IGBT module realization no-voltage open zero-current switching, widened the IGBT safety operation area, reduced the power device switching loss; Save electric energy, improved overall efficiency, power factor and useful life; Again on the one hand, doubly flow rectification module and utilized RCD to absorb circuit and filter capacitor, effectively absorb the switch ripple of Schottky diode, reduce output ripple coefficient harmonic total current, improved the reliability of high power rectification circuit greatly.To sum up, the high-current switch power supply in the embodiment of the invention has the characteristics of reliability and validity.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Example structure sketch map of high-current switch power supply that Fig. 1 provides for the embodiment of the invention;
Embodiment circuit theory diagrams of rectification module that Fig. 2 provides for the embodiment of the invention;
Embodiment circuit theory diagrams of Power Conversion module that Fig. 3 provides for the embodiment of the invention;
Fig. 4 doubly flows embodiment circuit theory diagrams of rectification module for what the embodiment of the invention provided;
Example structure sketch map of high-current switch power-supply system that Fig. 5 provides for the embodiment of the invention.
Embodiment
Along with economic development mode and industrial structure upgrading transition; The requirement of energy-saving and emission-reduction becomes social consensus; Have benefited from the development of power electronic device and Semiconductor Converting Technology, the application of through high frequency transformer, power conversion circuit, doubly flowing commutation technique etc. facts have proved it is a kind of feasible means of row to the requirement that traditional energy consumption upgrading reaches energy-saving and emission-reduction.
The embodiment of the invention provides a kind of high-current switch power supply and high-current switch power-supply system.
For make goal of the invention of the present invention, characteristic, advantage can be more obvious and understandable; To combine the accompanying drawing in the embodiment of the invention below; Technical scheme in the embodiment of the invention is carried out clear, intactly description; Obviously, described embodiment only is the present invention's part embodiment, but not whole embodiment.
Describe in the face of a kind of high-current switch power supply in the embodiment of the invention down, see also Fig. 1, the high-current switch power supply 100 in the embodiment of the invention comprises:
Wherein, Rectification module 101 is used for the three-phase ac signal of input is converted into direct current signal; Wherein, rectification module 101 comprises: be used for three-phase ac signal electromagnetic interference (EMI, the Electro Magnetic Interference) power-supply filter that carries out filtering to input; And be connected with the output of EMI power-supply filter; Be used for the input signal of this EMI power-supply filter is carried out the rectification circuit of rectification, wherein, the output signal of above-mentioned rectification circuit is the output signal of rectification module 101.
Be illustrated in figure 2 as the circuit theory diagrams of rectification module 101; The U of EMI power-supply filter 1011 and three-phase alternating-current supply mutually, V is connected with W mutually; EMI power-supply filter 1011 exports filtered signal to rectification circuit 1012 and carries out rectification, and rectification circuit 1012 (is made up of like the D1 among Fig. 2 ~ D6) and 1 filter capacitor (like the C1 among Fig. 2) 6 diodes.The signal of 1012 pairs of EMI power-supply filters of rectification circuit, 1011 inputs carries out exporting after the rectification.
Concrete, Power Conversion module 102 absorbs circuit, second passive flexible switch absorption circuit, an IGBT module, the 2nd IGBT module, the 3rd IGBT module, the 4th IGBT module and high frequency transformer circuits built by first passive flexible switch.The circuit theory diagrams of Power Conversion module 102 can be as shown in Figure 3; Wherein, above-mentioned high frequency transformer circuit comprises: high frequency transformer (T1 as shown in Figure 3), first high-frequency inductor (L1 as shown in Figure 3) and first capacitance (C8 as shown in Figure 3); L1 connects with first branch road of T1 prime; C8 connects with second branch road of T1 prime.Wherein, Above-mentioned first passive flexible switch absorbs circuit and comprises: diode 1 (D8 as shown in Figure 3); Diode 2 (D7 as shown in Figure 3), first electric capacity (C4 as shown in Figure 3), second electric capacity (C2 as shown in Figure 3) and the 3rd electric capacity (C3 as shown in Figure 3); The anode of D8 is connected with the cathode output end of above-mentioned rectification module; The negative electrode of D8 is connected with the end of C4 and the end of C2 respectively; The other end of C4 is connected with the emitter of an above-mentioned IGBT module (Q1 as shown in Figure 3) and the collector electrode of the 2nd IGBT module (Q2 as shown in Figure 3) respectively; The other end of C2 is connected with the end of C3 and the anode of D7 respectively; The other end of C3 is connected with the input of C8; The negative electrode of D7 is connected with the cathode output end of above-mentioned rectification module.Wherein, Above-mentioned second passive flexible switch absorbs circuit and comprises: diode 3 (D10 as shown in Figure 3); Diode 4 (D9 as shown in Figure 3), the 4th electric capacity (C7 as shown in Figure 3), the 5th electric capacity (C5 as shown in Figure 3) and the 6th electric capacity (C6 as shown in Figure 3); The anode of D10 is connected with the cathode output end of above-mentioned rectification module; The negative electrode of D10 is connected with the end of C7 and the end of C5 respectively; The other end of C7 is connected with the emitter of above-mentioned the 3rd IGBT module (Q3 as shown in Figure 3) and the collector electrode of above-mentioned the 4th IGBT module (Q4 as shown in Figure 3) respectively; The other end of C5 is connected with the end of C6 and the anode of D9 respectively; The other end of C6 is connected with the input of L1; The negative electrode of D9 is connected with the cathode output end of above-mentioned rectification module.Wherein, the collector electrode of Q1 is connected with the cathode output end of above-mentioned rectification module; The emitter of Q2 is connected with the cathode output end of above-mentioned rectification module, and the collector electrode of Q2 is connected with the emitter of Q1; The collector electrode of Q3 is connected with the cathode output end of above-mentioned rectification module, and the emitter of Q3 is connected with the input of L1; The emitter of Q4 is connected with the cathode output end of above-mentioned rectification module, and the collector electrode of Q4 is connected with the emitter of Q3.Wherein, the output signal of level is the output signal of Power Conversion module 102 behind the T1.Need to prove that as shown in Figure 2, Q1 and Q2 are realized by a bimodulus piece IGBT who comprises 7 pins; Q3 and Q4 are realized by a bimodulus piece IGBT who comprises 7 pins; In practical application, Q1, Q2, Q3 and Q4 also can be by 4 independently single module IGBT realizations, do not limit here.
Doubly flowing rectification module 103 is connected with the output of Power Conversion module 102; Doubly flowing the output signal rectification that rectification module 103 is used for Power Conversion module 102 is the heavy DC signal; Wherein, doubly flow rectification module 103 and absorb circuit and filter capacitor structure by Schottky diode, high-frequency inductor, RCD.
Concrete, doubly flow rectification module 103 and comprise Schottky diode 1, Schottky diode 2, Schottky diode 3; Schottky diode 4, the second high-frequency inductors, the 3rd high-frequency inductor; The one RCD absorbs circuit, and the 2nd RCD absorbs circuit, first filter capacitor and second filter capacitor., the circuit theory diagrams that doubly flow rectification module 103 can be as shown in Figure 4, and wherein, an above-mentioned RCD absorbs circuit and comprises: diode 5 (D15 as shown in Figure 4), the 7th electric capacity (C9 as shown in Figure 4) and first resistance (R1 as shown in Figure 4); Above-mentioned the 2nd RCD absorbs circuit and comprises: diode 6 (D16 as shown in Figure 4), the 8th electric capacity (C10 as shown in Figure 4) and second resistance (R2 as shown in Figure 4); Wherein, the negative electrode of the negative electrode of Schottky diode 1 (D11 as shown in Figure 4), Schottky diode 2 (D13 as shown in Figure 4) is connected with the cathode output end of Power Conversion module 102 respectively; The negative electrode of the negative electrode of Schottky diode 3 (D12 as shown in Figure 4), Schottky diode 4 (D14 as shown in Figure 4) is connected with the cathode output end of Power Conversion module 102 respectively; The anode of the anode of D11, the anode of D13, D12 and the anode interconnect of D14; Above-mentioned second high-frequency inductor (L3 as shown in Figure 4) is connected on the positive pole output branch road that doubly flows rectification module 103; Above-mentioned the 3rd high-frequency inductor (L2 as shown in Figure 4) is connected on the negative pole output branch road that doubly flows rectification module 103; The series connection of above-mentioned first filter capacitor (C12 as shown in Figure 4) and above-mentioned second filter capacitor (C11 as shown in Figure 4), and the end that C12 is not connected with C11 is connected with the output of L3, and the end that C11 is not connected with C12 is connected with the output of L2; The anode of D15 is connected with the cathode output end of Power Conversion module 102; The end of the negative electrode difference C9 of D15 and the end of R1 are connected; The other end of R1 is connected on the connection line of C12 and C11; The other end of C9 is connected with the end of C10; The other end of C10 is connected with the end of R2 and the anode of D16 respectively; The other end of R2 is connected with the output of L2; The negative electrode of D16 is connected with the cathode output end of Power Conversion module 102.
High-current switch power supply 100 in the embodiment of the invention can be applied to industrial power field and large-capacity battery charge power supply fields such as electrolysis, plating.
Therefore in the high-current switch power supply of the embodiment of the invention, on the one hand, rectification module carries out filtering by electromagnetic interference power filter to the three-phase ac signal of importing, and has effectively prevented electromagnetic interference, has improved the operational reliability of high-current switch power supply; On the other hand, to the Power Conversion module PWM is provided drive signal, can realizes control the duty ratio of the output signal of Power Conversion module by driver module; The Power Conversion module adopts passive flexible switch to absorb circuit engineering; Make IGBT module realization no-voltage open zero-current switching, widened the IGBT safety operation area, reduced the power device switching loss; Save electric energy, improved overall efficiency, power factor and useful life; Again on the one hand, doubly flow rectification module and utilized RCD to absorb circuit and filter capacitor, effectively absorb the switch ripple of Schottky diode, reduce output ripple coefficient harmonic total current, improved the reliability of high power rectification circuit greatly.To sum up, the high-current switch power supply in the embodiment of the invention has the characteristics of reliability and validity.
In addition, the rectification module that doubly flows in the embodiment of the invention adopts novel times of stream commutation technique, and under equal effect, with respect to full-wave rectification and full-bridge rectification, Schottky diode quantity reduces half the, therefore can reduce production costs widely; Power Conversion module in the embodiment of the invention adopts passive flexible switch to absorb circuit engineering, and the nondestructive buffering network that is made up of noninductive electric capacity and diode constitutes LC resonance with the leakage inductance of auxiliary induction and high frequency transformer, controls simply.
The embodiment of the invention also provides a kind of high-current switch power-supply system, and is as shown in Figure 5, and high-current switch power-supply system 50 is made up of N switch power module, and wherein, the N value is for being greater than or equal to 2.Wherein, the composition structure of the switch power module 1 ~ N in the embodiment of the invention can be with reference to the switch power module shown in Fig. 2 ~ 4.
More than a kind of high-current switch power supply provided by the present invention and high-current switch power-supply system have been carried out detailed introduction; For one of ordinary skill in the art; Thought according to the embodiment of the invention; The part that on embodiment and range of application, all can change, to sum up, this description should not be construed as limitation of the present invention.
Claims (8)
1. a high-current switch power supply is characterized in that, comprising:
Be used for the three-phase ac signal of input is converted into the rectification module of direct current signal; Wherein, Said rectification module comprises: be used for the three-phase ac signal of said input is carried out the electromagnetic interference power filter of filtering, and be connected with the output of said electromagnetic interference power filter, be used for the input signal of said electromagnetic interference power filter is carried out the rectification circuit of rectification; Wherein, the output signal of said rectification circuit is the output signal of said rectification module;
Be connected with the output of said rectification module; Be used for the output signal of said rectification module is converted into the Power Conversion module of AC signal; Wherein, said Power Conversion module absorbs circuit, single tube insulated gate bipolar transistor IGBT module and high frequency transformer circuits built by passive flexible switch;
Be connected with the said IGBT module of said Power Conversion module; Be used for providing the driver module of pulse width modulation (PWM) drive signal to said Power Conversion module; So that, make said Power Conversion module the output signal of said rectification module is converted into the AC signal of different duty through the said PWM drive signal of adjustment;
Be connected with the output of institute Power Conversion module; What be used for output signal rectification with said Power Conversion module and be the heavy DC signal doubly flows rectification module; Wherein, said times of stream rectification module absorbs circuit and filter capacitor structure by Schottky diode, high-frequency inductor, RCD.
2. dc charging motor according to claim 1 is characterized in that,
Said Power Conversion module absorbs circuit, single tube insulated gate bipolar transistor IGBT module and high frequency transformer circuits built by passive flexible switch, comprising:
Said Power Conversion module absorbs circuit, second passive flexible switch absorption circuit, an IGBT module, the 2nd IGBT module, the 3rd IGBT module, the 4th IGBT module and high frequency transformer circuits built by first passive flexible switch;
Wherein, said high frequency transformer circuit comprises:
High frequency transformer, first high-frequency inductor and first capacitance;
Said first high-frequency inductor is connected with first branch road of said high frequency transformer prime;
Said first capacitance is connected with second branch road of said high frequency transformer prime;
Wherein, said first passive flexible switch absorption circuit comprises:
Diode 1, diode 2, the first electric capacity, second electric capacity and the 3rd electric capacity;
The anode of said diode 1 is connected with the cathode output end of said rectification module;
The negative electrode of said diode 1 is connected with an end of said first electric capacity and an end of said second electric capacity respectively;
The other end of said first electric capacity is connected with the emitter of a said IGBT module and the collector electrode of said the 2nd IGBT module respectively;
The other end of said second electric capacity is connected with an end of said the 3rd electric capacity and the anode of said diode 2 respectively;
The other end of said the 3rd electric capacity is connected with the input of said first capacitance;
The negative electrode of said diode 2 is connected with the cathode output end of said rectification module;
Wherein, said second passive flexible switch absorption circuit comprises:
Diode 3, diode 4, the four electric capacity, the 5th electric capacity and the 6th electric capacity;
The anode of said diode 3 is connected with the cathode output end of said rectification module;
The negative electrode of said diode 3 is connected with an end of said the 4th electric capacity and an end of said the 5th electric capacity respectively;
The other end of said the 4th electric capacity is connected with the emitter of said the 3rd IGBT module and the collector electrode of said the 4th IGBT module respectively;
The other end of said the 5th electric capacity is connected with an end of said the 6th electric capacity and the anode of said diode 4 respectively;
The other end of said the 6th electric capacity is connected with the input of said first high-frequency inductor;
The negative electrode of said diode 4 is connected with the cathode output end of said rectification module;
Wherein, the collector electrode of a said IGBT module is connected with the cathode output end of said rectification module; The emitter of said the 2nd IGBT module is connected with the cathode output end of said rectification module, and the collector electrode of said the 2nd IGBT module is connected with the emitter of a said IGBT module; The collector electrode of said the 3rd IGBT module is connected with the cathode output end of said rectification module, and the emitter of said the 3rd IGBT module is connected with the input of said first high-frequency inductor; The emitter of said the 4th IGBT module is connected with the cathode output end of said rectification module, and the collector electrode of said the 4th IGBT module is connected with the emitter of said the 3rd IGBT module;
Wherein, the output signal of level is the output signal of said Power Conversion module behind the said high frequency transformer.
3. high-current switch power supply according to claim 1 and 2 is characterized in that,
Said times of stream rectification module absorbs circuit and filter capacitor structure by Schottky diode, high-frequency inductor, RCD, comprising:
Said times of stream rectification module comprises Schottky diode 1, Schottky diode 2, Schottky diode 3; Schottky diode 4, the second high-frequency inductors, the 3rd high-frequency inductor; The one RCD absorbs circuit, and the 2nd RCD absorbs circuit, first filter capacitor and second filter capacitor;
Wherein, said RCD absorption circuit comprises:
Diode 5, the seven electric capacity and first resistance;
Said the 2nd RCD absorbs circuit and comprises:
Diode 6, the eight electric capacity and second resistance;
Wherein, the negative electrode of the negative electrode of said Schottky diode 1, said Schottky diode 2 is connected with the cathode output end of said Power Conversion module respectively; The negative electrode of the negative electrode of said Schottky diode 3, said Schottky diode 4 is connected with the cathode output end of said Power Conversion module respectively; The anode interconnect of the anode of the anode of the anode of said Schottky diode 1, said Xiao Te diode 2, said Xiao Te diode 3 and said Xiao Te diode 4;
Said second high-frequency inductor is connected on the positive pole output branch road of said times of stream rectification module;
Said the 3rd high-frequency inductor is connected on the negative pole output branch road of said times of stream rectification module;
Said first filter capacitor and the series connection of second filter capacitor; And the end that said first filter capacitor is not connected with said second filter capacitor is connected with the output of said second high-frequency inductor, and the end that said second filter capacitor is not connected with said first filter capacitor is connected with the output of said the 3rd high-frequency inductor;
The anode of said diode 5 is connected with the cathode output end of said Power Conversion module;
The negative electrode of said diode 5 is connected with an end of said the 7th electric capacity and an end of said first resistance respectively;
The other end of said first resistance is connected on the connection line of said first filter capacitor and said second filter capacitor;
The other end of said the 7th electric capacity is connected with an end of said the 8th electric capacity;
The other end of said the 8th electric capacity is connected with an end of said second resistance and the anode of said diode 6 respectively;
The other end of said second resistance is connected with the output of said the 3rd high-frequency inductor;
The negative electrode of said diode 6 is connected with the cathode output end of said Power Conversion module.
4. high-current switch power supply according to claim 1 and 2 is characterized in that,
Said driver module is made up by digital signal processor DSP.
5. a high-current switch power-supply system is characterized in that, comprising:
Plural switch power module, wherein, said plural switch power module parallel connection;
Wherein, said switch power module comprises:
Be used for the three-phase ac signal of input is converted into the rectification module of direct current signal; Wherein, Said rectification module comprises: be used for the three-phase ac signal of said input is carried out the electromagnetic interference power filter of filtering, and be connected with the output of said electromagnetic interference power filter, be used for the input signal of said electromagnetic interference power filter is carried out the rectification circuit of rectification; Wherein, the output signal of said rectification circuit is the output signal of said rectification module.
Be connected with the output of said rectification module; Be used for the output signal of said rectification module is converted into the Power Conversion module of AC signal; Wherein, said Power Conversion module absorbs circuit, single tube insulated gate bipolar transistor IGBT module and high frequency transformer circuits built by passive flexible switch;
Be connected with the said IGBT module of said Power Conversion module; Be used for providing the driver module of pulse width modulation (PWM) drive signal to said Power Conversion module; So that through the said PWM drive signal of adjustment, make said Power Conversion module the direct current signal of said rectification module output is converted into the AC signal of different duty;
Be connected with the output of said rectification module; What be used for output signal rectification with said Power Conversion module and be the heavy DC signal doubly flows rectification module; Wherein, said times of stream rectification module absorbs circuit and filter capacitor structure by Schottky diode, high-frequency inductor, RCD.
6. high-current switch power-supply system according to claim 5 is characterized in that,
Said Power Conversion module absorbs circuit, single tube insulated gate bipolar transistor IGBT module and high frequency transformer circuits built by passive flexible switch, comprising:
Said Power Conversion module absorbs circuit, second passive flexible switch absorption circuit, an IGBT module, the 2nd IGBT module, the 3rd IGBT module, the 4th IGBT module and high frequency transformer circuits built by first passive flexible switch;
Wherein, said high frequency transformer circuit comprises:
High frequency transformer, first high-frequency inductor and first capacitance;
Said first high-frequency inductor is connected with first branch road of said high frequency transformer prime;
Said first capacitance is connected with second branch road of said high frequency transformer prime;
Wherein, said first passive flexible switch absorption circuit comprises:
Diode 1, diode 2, the first electric capacity, second electric capacity and the 3rd electric capacity;
The anode of said diode 1 is connected with the cathode output end of said rectification module;
The negative electrode of said diode 1 is connected with an end of said first electric capacity and an end of said second electric capacity respectively;
The other end of said first electric capacity is connected with the emitter of a said IGBT module and the collector electrode of said the 2nd IGBT module respectively;
The other end of said second electric capacity is connected with an end of said the 3rd electric capacity and the anode of said diode 2 respectively;
The other end of said the 3rd electric capacity is connected with the input of said first capacitance;
The negative electrode of said diode 2 is connected with the cathode output end of said rectification module;
Wherein, said second passive flexible switch absorption circuit comprises:
Diode 3, diode 4, the four electric capacity, the 5th electric capacity and the 6th electric capacity;
The anode of said diode 3 is connected with the cathode output end of said rectification module;
The negative electrode of said diode 3 is connected with an end of said the 4th electric capacity and an end of said the 5th electric capacity respectively;
The other end of said the 4th electric capacity is connected with the emitter of said the 3rd IGBT module and the collector electrode of said the 4th IGBT module respectively;
The other end of said the 5th electric capacity is connected with an end of said the 6th electric capacity and the anode of said diode 4 respectively;
The other end of said the 6th electric capacity is connected with the input of said first high-frequency inductor;
The negative electrode of said diode 4 is connected with the cathode output end of said rectification module;
Wherein, the collector electrode of a said IGBT module is connected with the cathode output end of said rectification module; The emitter of said the 2nd IGBT module is connected with the cathode output end of said rectification module, and the collector electrode of said the 2nd IGBT module is connected with the emitter of a said IGBT module; The collector electrode of said the 3rd IGBT module is connected with the cathode output end of said rectification module, and the emitter of said the 3rd IGBT module is connected with the input of said first high-frequency inductor; The emitter of said the 4th IGBT module is connected with the cathode output end of said rectification module, and the collector electrode of said the 4th IGBT module is connected with the emitter of said the 3rd IGBT module;
Wherein, the output signal of level is the output signal of said Power Conversion module behind the said high frequency transformer.
7. according to claim 5 or 6 described high-current switch power-supply systems, it is characterized in that,
Said times of stream rectification module absorbs circuit and filter capacitor structure by Schottky diode, high-frequency inductor, RCD, comprising:
Said times of stream rectification module comprises Schottky diode 1, Schottky diode 2, Schottky diode 3; Schottky diode 4, the second high-frequency inductors, the 3rd high-frequency inductor; The one RCD absorbs circuit, and the 2nd RCD absorbs circuit, first filter capacitor and second filter capacitor;
Wherein, said RCD absorption circuit comprises:
Diode 5, the seven electric capacity and first resistance;
Said the 2nd RCD absorbs circuit and comprises:
Diode 6, the eight electric capacity and second resistance;
Wherein, the negative electrode of the negative electrode of said Schottky diode 1, said Schottky diode 2 is connected with the cathode output end of said Power Conversion module respectively; The negative electrode of the negative electrode of said Schottky diode 3, said Schottky diode 4 is connected with the cathode output end of said Power Conversion module respectively; The anode interconnect of the anode of the anode of the anode of said Schottky diode 1, said Xiao Te diode 2, said Xiao Te diode 3 and said Xiao Te diode 4;
Said second high-frequency inductor is connected on the positive pole output branch road of said power conversion circuit;
Said the 3rd high-frequency inductor is connected on the negative pole output branch road of said power conversion circuit;
Said first filter capacitor and the series connection of second filter capacitor; And the end that said first filter capacitor is not connected with said second filter capacitor is connected with the output of said second high-frequency inductor, and the end that said second filter capacitor is not connected with said first filter capacitor is connected with the output of said the 3rd high-frequency inductor;
The anode of said diode 5 is connected with the cathode output end of said Power Conversion module;
The negative electrode of said diode 5 is connected with an end of said the 7th electric capacity and an end of said first resistance respectively;
The other end of said first resistance is connected on the connection line of said first filter capacitor and said second filter capacitor;
The other end of said the 7th electric capacity is connected with an end of said the 8th electric capacity;
The other end of said the 8th electric capacity is connected with an end of said second resistance and the anode of said diode 6 respectively;
The other end of said second resistance is connected with the output of said the 3rd high-frequency inductor;
The negative electrode of said diode 6 is connected with the cathode output end of said Power Conversion module.
8. according to claim 5 or 6 described high-current switch power supplys, it is characterized in that said driver module is made up by digital signal processor DSP.
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Application publication date: 20120912 |