CN112241191A - Novel power module - Google Patents
Novel power module Download PDFInfo
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- CN112241191A CN112241191A CN202010972955.9A CN202010972955A CN112241191A CN 112241191 A CN112241191 A CN 112241191A CN 202010972955 A CN202010972955 A CN 202010972955A CN 112241191 A CN112241191 A CN 112241191A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
- G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
- G05F1/561—Voltage to current converters
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Abstract
The invention relates to a novel power module which comprises positive and negative input terminals, positive and negative output terminals, a starting module, a control module coupled with the starting module, a switch module coupled with the control module, a sampling module coupled with the control module and the switch module respectively, a voltage transformation module coupled with the starting module and the switch module, and a feedback module coupled with the voltage transformation module and the control module, wherein the voltage transformation module and the filtering module are provided with a plurality of groups, and the positive and negative output terminals connected with the filtering module are provided with a plurality of groups. The invention has the effects of expanding the voltage input range and adapting to a plurality of output requirements.
Description
Technical Field
The invention relates to the technical field of power supply technology, in particular to a novel power supply module.
Background
Integrated circuits, also known as ICs, are widely used in various electronic communication devices. Since there are various types of ICs, and different types of ICs have different operating voltages, a power supply voltage supplied in an electronic communication device must be converted into an operating voltage required for the IC by a voltage regulator circuit when the IC is used.
The existing voltage-stabilized power supply circuit is a large-current low dropout regulator (LDO), and the power input end of the voltage-stabilized power supply is connected with the output end of a system power supply when the voltage-stabilized power supply circuit is used, and the power output end of the voltage-stabilized power supply circuit is connected with the power input end of an Integrated Circuit (IC).
The above prior art solutions have the following drawbacks: the conventional voltage-stabilized power supply has fewer output terminals, so that energy can be supplied to only a single electronic device during actual output, and the use of a plurality of electronic devices is influenced.
Disclosure of Invention
In view of the shortcomings of the prior art, an object of the present invention is to provide a novel power module, which can expand the voltage input range and meet multiple output requirements.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a novel power module, includes positive negative pole input terminal, positive negative pole output terminal, its characterized in that: the filter module comprises a filter module, a control module, a switch module, a sampling module, a voltage transformation module and a feedback module, wherein the control module is coupled with the start module, the switch module is coupled with the control module, the sampling module is coupled with the control module and the switch module respectively, the voltage transformation module is coupled with the start module and the switch module, and the feedback module is coupled with the voltage transformation module and the control module.
By adopting the technical scheme, the starting module supplies power to the control module, so that the control module works normally; then the control module outputs a switching signal to the switching module to enable the switching module to work normally, and then the voltage transformation module is conducted and works normally and outputs the voltage after voltage transformation; then the control module outputs a sampling signal to the sampling module, compares the input current of the voltage transformation module acquired by the acquisition module with the sampling signal, and judges that the input current is too large to stop the control module when the sampling signal is smaller than the input current of the voltage transformation module; the voltage after the vary voltage feeds back to control module through feedback module, and control module carries out feedback regulation according to the feedback result afterwards, and the voltage after the vary voltage is exported to output terminal after the filtering of filtering module simultaneously, because the input voltage scope of start module is 4.3V-36V, and is equipped with multiunit output terminal, therefore can carry out multiunit output under the prerequisite of the multiple input power of adaptation, has enlarged the application range of the product that uses this circuit as the basis.
The present invention in a preferred example may be further configured to: the starting module comprises a starting circuit, a first starting capacitor, a first starting inductor and a third starting capacitor, wherein the two ends of the first starting capacitor are connected with the positive and negative input terminals in parallel, the first starting inductor is connected with a coupling point of the starting circuit and the first capacitor in series, the two ends of the third starting capacitor are connected with the first starting inductor and the coupling point of the first starting capacitor in parallel, the third starting capacitor is connected with the two ends of the first starting inductor and the coupling point of the first starting capacitor in parallel, the starting circuit comprises a first starting resistor, a starting voltage stabilizing diode and an NPN type starting triode, the K end of the starting voltage stabilizing diode is coupled with the other end of the first starting resistor, the base; the emitter of the starting triode is coupled with the control module and is grounded through a second starting capacitor, and the collector of the starting triode is connected with the first starting resistor in parallel through a second starting resistor.
By adopting the technical scheme, the external voltage stimulates the start voltage stabilizing diode to enable the start voltage stabilizing diode to extinguish the arc of the voltage, then the triode is started to be conducted, and the emitter supplies power to the control module to enable the circuit to start working.
The present invention in a preferred example may be further configured to: the control module comprises a controller and a climbing rate control circuit coupled with the controller, the climbing rate control circuit comprises a climbing control capacitor coupled with the controller and a PNP climbing control triode, the base electrode of the PNP climbing control triode is coupled with the coupling point of the controller and the climbing control capacitor, the collector electrode of the climbing control triode is grounded, and the emitter electrode of the climbing control triode is coupled with the other pin of the controller.
By adopting the technical scheme, the voltage output by the controller is stored by the climbing control capacitor, and meanwhile, the other pin of the controller outputs a control signal, so that the climbing control triode is conducted; energy is stored through the ramp-up control capacitor C5 to reduce the ramp rate, thereby enabling the circuit to couple larger loads.
The present invention in a preferred example may be further configured to: the switch module comprises a field effect transistor, one end of the field effect transistor is coupled with the controller through a first switch resistor, the coupling point of the field effect transistor and the first switch resistor is coupled with a second switch resistor, the other end of the second switch resistor is coupled with the output end of the field effect transistor, and the other two ends of the field effect transistor are respectively coupled with the sampling module and the voltage transformation module.
By adopting the technical scheme, after the control module works normally, the control module outputs a switching signal to the field effect transistor to switch on the field effect transistor, so that the voltage transformation module coupled to the field effect transistor is switched on, and normal voltage transformation work is realized.
The present invention in a preferred example may be further configured to: the sampling module comprises a first sampling resistor, a second sampling resistor and a third sampling resistor, the second sampling resistor and the third sampling resistor are connected in parallel, and input ends of the second sampling resistor and the third sampling resistor are connected in series; the second sampling resistor and the third sampling resistor are coupled to the coupling point of the first sampling resistor and coupled to the switch module, and the other ends of the second sampling resistor and the third sampling resistor which are connected in parallel are grounded; the other end of the first sampling resistor is coupled with the controller.
By adopting the technical scheme, after the voltage transformation module is switched on, the sampling module collects the current value between the S pole of the field effect transistor and the ground, the collected current value is compared with the sampling signal, and when the current value is greater than the sampling signal, the input current is judged to be overlarge, so that the controller is triggered to stop working, and the overcurrent protection of the controller is realized.
The present invention in a preferred example may be further configured to: the transformer module comprises a transformer, the transformer comprises at least two groups of primary sides and three groups of secondary sides, one group of primary side input ends of the transformer are coupled with the starting module, and the output ends of the primary sides are coupled with the switch module; the other group of primary side input ends of the transformers are coupled with the controller, and the output ends of the primary sides are grounded; and the secondary sides of the transformers are coupled with the filtering module.
By adopting the technical scheme, the input current is transformed by the transformer, and then is filtered by the filtering module and then is output, so that the transformation functions of various inputs and multiple groups of outputs are completed.
The present invention in a preferred example may be further configured to: the filter modules comprise inductors, filter diodes, first filter capacitors, second filter capacitors, third filter capacitors, fourth filter capacitors and filter resistors, anodes of the filter diodes are coupled to secondary sides of the transformers, and cathodes of the filter diodes are coupled to positive output terminals; the inductor is connected in series between the cathode and the anode output terminal of the filter diode; the two ends of the first filter capacitor and the second filter capacitor are sequentially connected in parallel with the two ends of the secondary side of the transformer, the third filter capacitor and the fourth filter capacitor are sequentially connected in parallel between the inductor and the output terminal, and the two ends of the third filter capacitor and the fourth filter capacitor are both connected in parallel with the two ends of the secondary side of the transformer; and the filter resistor is connected between the fourth filter capacitor and the circuit output terminal in parallel, and two ends of the filter resistor are respectively connected with the secondary side of the transformer in parallel.
The present invention in a preferred example may be further configured to: the feedback module comprises an optical coupler, the input end of the optical coupler is coupled with the coupling point of the transformer and the inductor through a resistor, the input end of the optical coupler is connected with the comparison module in parallel, one output end of the optical coupler is grounded, and the other output end of the optical coupler is coupled with the controller.
By adopting the technical scheme, after the voltage transformation module transforms the voltage, the optical coupler is conducted and outputs a feedback signal to the controller, so that the monitoring of the voltage transformation process is realized.
The present invention in a preferred example may be further configured to: the feedback module is connected with a comparison module in parallel, the comparison module comprises a first comparison resistor connected in parallel with a coupling point between the optical coupler and the filtering module, and the other end of the first comparison resistor is coupled with the other output end of the optical coupler; a coupling point between the first comparison resistor and the other output end of the optical coupler is connected with a comparison voltage stabilizing diode and a first comparison capacitor in parallel, the first comparison capacitor is connected with the comparison voltage stabilizing diode in parallel, the first comparison capacitor is connected with a second comparison capacitor in parallel, the second comparison capacitor is coupled to a coupling point of the first comparison capacitor and a voltage stabilizing diode, and the other end of the second comparison capacitor is connected with an A end of the comparison voltage stabilizing diode in parallel; the coupling point of the first comparison capacitor and the second comparison capacitor is coupled with a comparison circuit, and the comparison circuit stabilizes the output voltage at a specified value.
The present invention in a preferred example may be further configured to: still include the protection casing, be equipped with the detection module who is coupled with the sampling module in the protection casing and the protection architecture who is connected with the detection module electricity, the protection architecture including set firmly two external input terminals on the protection casing, level setting in the protection casing and with the protection casing connecting rod of sliding connection, set firmly on the connecting rod and respectively with external input terminal and positive negative input terminal looks butt and set up the electro-magnet in one side and lie in connecting rod one end in the protection casing, detection module triggers electro-magnet work and makes the connecting rod drive metal contact slide in order to break off the connection between external input terminal and the positive negative input terminal.
By adopting the technical scheme, when the detection module detects that the sampling signal is smaller than the current value acquired by the sampling module, the detection module triggers the electromagnet to act, so that the electromagnet adsorbs the connecting rod, the metal contact is driven to slide, the connection between the external input terminal and the positive and negative input terminals is disconnected, the circuit is prevented from being damaged, and the power module is protected.
In summary, the invention includes at least one of the following beneficial technical effects:
1. by arranging the control module and the plurality of groups of output terminals, the circuit can adapt to the input voltage range of 4.3V-36V and can adapt to a plurality of output requirements, and the use range of the circuit is improved;
2. the feedback module is arranged, so that the input current can be monitored;
3. by providing the comparison module, the output voltage can be stabilized at a specified value.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a circuit diagram of a first embodiment of the present invention.
FIG. 3 is a schematic structural diagram of a second embodiment of the present invention.
FIG. 4 is a circuit diagram of a second embodiment of the present invention.
Fig. 5 is a schematic structural view of the protective case of the present invention.
Fig. 6 is a structural sectional view of the protective case of the present invention.
In the figure, 1, a starting module; 2. a control module; 21. a ramp rate control circuit; 3. a switch module; 4. a sampling module; 5. a voltage transformation module; 6. a filtering module; 7. a feedback module; 8. a comparison module; 81. a load capacitive start-up circuit; 9. a protective housing; 91. an external input terminal; 92. a detection module; 931. a connecting rod; 9311. a button; 932. a metal contact; 933. a limiting end slot; 934. an electromagnet.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example one
Referring to fig. 1, a novel power module disclosed by the invention, referring to fig. 1 and 2, the novel power module disclosed by the invention comprises a positive input terminal P1, a negative input terminal P2, positive and negative output terminals P3-P8, a starting module 1, a control module 2 coupled with the starting module 1, a switch module 3 coupled with the control module 2, a sampling module 4 coupled with the control module 2 and the switch module 3 respectively, a voltage transformation module 5 coupled with the starting module 1 and the switch module 3, and a feedback module 7 coupled with the voltage transformation module 5 and the control module 2, wherein the input voltage range of the starting module 1 is 4.3V-36V, and the sampling module 4 is arranged between the output end of the switch module 3 and the control module 2; the transformation module 5 is a transformer T1 consisting of a plurality of groups of primary sides and secondary sides; in this embodiment, two sets of primary sides of the transformer T1 are provided, and one primary side input terminal 14 of the transformer T1 is coupled to the start module 1, the primary side output terminal 1 is coupled to the switch module 3, the other primary side input terminal 12 of the transformer T1 is coupled to the control module 2, and the primary side output terminal 13 is grounded; the secondary side of the transformer T1 is coupled to output terminals P5 and P3 via a filter module 6.
The starting module 1 supplies power to the control module 2 to enable the control module 2 to work normally; then the control module 2 outputs a switching signal to the switching module 3 and outputs a sampling signal to the sampling module 4, so that the switching module 3 works normally, and then the voltage transformation module 5 is switched on and works normally, and outputs a voltage after voltage transformation; the voltage after voltage transformation is fed back to the control module 2 through the feedback module 7, then the control module 2 carries out feedback adjustment according to a feedback result, and meanwhile, the voltage after voltage transformation is filtered through the filtering module 6 and then is output to the positive and negative output terminals P3-P8.
Wherein, the filtering modules 6 are provided with a plurality of groups and respectively comprise secondary terminals 5-10 which are connected in series with the transformer T1
An inductor L1 having one end connected in parallel to a coupling point between the secondary side of the transformer T1 and the inductor L1 and the other end connected in parallel to a coupling point between the other secondary side of the transformer T1 and the negative circuit output terminal P3, and a second filter capacitor C21 having one end connected in parallel to the inductor L1 and the circuit output terminal P5 and the other end connected in parallel to a coupling point between the transformer T1 and the negative circuit output terminal P3.
Referring to fig. 2, the starting module 1 includes a first starting capacitor C1 having two ends connected in parallel to the positive and negative input terminals P1 and P2, a starting circuit connected in parallel to the input terminal P1, a first starting inductor L1 connected in series to a coupling point of the starting circuit and the first starting capacitor C1, and a third starting capacitor C2 having two ends connected in parallel to ends of the first starting inductor L1 and the first starting capacitor C1 which are away from each other, wherein a coupling point of the first capacitor C1 and the negative input terminal P2 is grounded; the control module 2 is coupled to a coupling point between the positive input terminal P1 and the first start inductor L1; the start-up circuit comprises a first start-up resistor R1 having one end coupled to a coupling point of the inductor L1 and the third start-up capacitor C2, a start-up zener diode VZ1 having a K end coupled to the other end of the first start-up resistor R1, and an NPN-type start-up transistor VT1 having a base coupled to a coupling point of the first start-up resistor R1 and the start-up zener diode VZ1, wherein the a end of the start-up zener diode VZ2 is grounded, an emitter of the start-up transistor VZ2 is coupled to the power supply pin VCC of the control module 2 and is grounded via a second start-up capacitor C53925, and a collector of the start-up transistor VZ 7 is connected in parallel to the first start-up resistor R21 via a second start-up resistor R63.
After the external voltage is input through the input terminals P1 and P2, the zener diode VZ2 is turned on to extinguish the voltage, and then the transistor VZ2 is turned on to supply power to the control module 2 through the emitter.
The control module 2 includes an asynchronous boost controller N1 of LM5155, a UVLO/SYNC pin of the controller N1 is coupled to a coupling point between the first start inductor L1 and the positive input terminal P1 through a resistor R10, an RT pin of the controller N1 is grounded through a resistor R19, an SS pin of the controller N1 is coupled to the ramp rate control circuit 21, a GATE pin of the controller N1 is coupled to the switch module 3, a CS pin of the controller N1 is coupled to the sampling module 4, a COMP pin of the controller N1 is coupled to the feedback module 7, and the ramp rate control circuit 21 is connected in parallel to the COMP pin and the coupling point of the feedback module 7.
When the controller N1 is normally started, the GATE pin outputs a switching signal to the switch module 3, so that the switch module 3 normally operates, and the transformer module 5 can normally operate; then, the CS pin outputs a sampling signal to the sampling module 4, and compares a sampling value of the sampling module 4 with the sampling signal; when the sampled value is greater than the sampling signal, it is determined that the input current is too large, and the controller N1 is deactivated.
The ramp-up rate control circuit 21 comprises a ramp-up control capacitor C20 coupled to the SS pin, and a PNP-type ramp-up control transistor VT2 having a base coupled to a coupling point of the SS pin and the ramp-up control capacitor C20, wherein a collector of the ramp-up control transistor VT2 is grounded, and an emitter of the ramp-up control transistor VT2 is coupled to a COMP pin of the controller N1; the voltage output by the SS pin is stored by the climbing control capacitor C20, and meanwhile, the COMP pin outputs a control signal, so that the climbing control triode VT1 is conducted; energy is stored through the ramp-up control capacitor C20 to reduce the ramp rate, thereby enabling the circuit to couple larger loads.
The switch module 3 comprises an N-type field effect transistor Q1 with high frequency and capable of improving switching efficiency, a G pole of the field effect transistor Q1 is coupled with a GATE pin of the controller N1 through a first switch resistor R6, a coupling point of the G pole of the field effect transistor Q1 and the first switch resistor R6 is coupled with a second switch resistor RS, the other end of the second switch resistor RS is connected in parallel with an S pole of the field effect transistor Q1, the S pole of the field effect transistor Q1 is coupled with the sampling module 4, and a D pole of the field effect transistor Q1 is coupled with a primary side output terminal 1 of the transformer T1; the field effect transistor Q1 may be configured as a triode.
The sampling module 4 comprises a first sampling resistor R11, and a second sampling resistor R15 and a third sampling resistor R11 connected in series with one end of the first sampling resistor R14 and in parallel with each other, the second sampling resistor R15 and the third sampling resistor R11 are coupled to the coupling point of the first sampling resistor R14 and coupled to the D-pole of the fet Q1, and the other ends of the second sampling resistor R15 and the third sampling resistor R11 connected in parallel are grounded; the other end of the first sampling resistor R14 is coupled to the CS pin of the controller N1, and the coupling point of the first sampling resistor R14 and the CS pin is connected in parallel to a sampling capacitor C17, and the other end of the sampling capacitor C17 is grounded.
After the main side of the transformer T1 is turned on, the sampling module 4 collects the current value between the S pole of the fet Q1 and the ground, compares the collected current value with the sampling signal, and determines that the input current is too large when the current value is greater than the sampling signal, thereby triggering the CS pin to stop the controller N1, and implementing overcurrent protection for the controller N1.
Referring to fig. 2, the feedback module 7 includes an optical coupler N2 having an input terminal coupled to a coupling point between the filter diode D3 and the filter capacitor C11 through an RC circuit, the input terminal of the optical coupler N2 is connected in parallel to the comparison module 8, one output terminal of the optical coupler N2 is grounded, and the other output terminal is coupled to a COMP pin of the controller N1; when the secondary side of the transformer T1 transforms voltage, the optical coupler N2 is turned on and outputs a feedback signal to a COMP pin; the RC circuit comprises a capacitor C15 and a resistor R16 which are connected in parallel with each other.
Referring to fig. 2, the comparing module 8 includes a first comparing resistor R18 connected in parallel to a coupling point between the photo-coupler N2 and the resistor R12, and the other end of the first comparing resistor R18 is coupled to the other output end of the photo-coupler N2; a comparison zener diode N3 and a first comparison capacitor C18 are connected in parallel at a coupling point between the first comparison resistor R18 and the other output end of the optocoupler N2, the first comparison capacitor C18 is connected in parallel with the comparison zener diode N3, the first comparison capacitor C8 is connected in parallel with a second comparison capacitor C19, the second comparison capacitor C9 is coupled to a coupling point between the first comparison capacitor C18 and the zener diode N3, and the other end of the second comparison capacitor C9 is connected in parallel with an end a of the comparison zener diode N3; the comparison circuit is coupled to a coupling point of the first comparison capacitor C18 and the second comparison capacitor C19, and includes resistors R21 and R22 connected in parallel to each other and having one end coupled to a coupling point of the filter resistor R7 and the positive output terminal P7, and resistors R24 and R25 connected in parallel to the resistors R21 and R22, respectively, the other end of the resistor R24 is coupled to a coupling point between the second comparison capacitor C19 and the comparison zener diode N3, and the other end of the resistor R25 is coupled to a coupling point between the resistor R24 and the second comparison capacitor C19.
The comparing module 8 further includes a load capacitive start circuit 81, and the load capacitive start circuit 81 includes a diode D6, a diode D8, a resistor R31, and a capacitor C21. The anode of the diode D6 is connected with the LED-pole of the optocoupler N2, the cathode of the diode D6 is respectively connected with the anode of the diode D8, one end of the resistor R31 and one end of the capacitor C21, the cathode of the diode D8 is connected with the other end of the resistor R31, the common end of the diode D8 and the resistor R31 is connected with + VO1, and the other end of the capacitor C21 is connected with-VO 1. The load capacitive start circuit 81 enables the load to start capacitively when the power module is loaded, and the load start voltage is smoother.
The current passes through a comparison voltage stabilizing diode N3, a resistor R24 and a resistor R25 in sequence, the voltage of R24 and R25 is compared with the output voltage, and the output voltage is subjected to voltage stabilizing processing, so that the output voltage is stabilized at a preset value, wherein when the voltage stabilizing processing is carried out, the input voltage and the output voltage meet the following formula:
VOUT =(1+R25/R24)*VREFin the present embodiment, VREFIs 2.5V, VOUTSet to 15V.
Example two
The difference from the first embodiment is that the protection device further includes a protection housing 9 (see fig. 5), a detection module 92 coupled to the sampling module 4 is disposed in the protection housing 9, referring to fig. 3 and 4, the detection module 92 includes a comparator N4 whose input terminals are coupled to the sampling module 4 and the CS pin of the controller, an NPN transistor Q4 whose base terminal is coupled to the output terminal of the comparator N4, and a relay KM1 coupled to the collector terminal of the transistor Q4, and the relay KM1 is coupled to the protection structure.
Referring to fig. 5 and 6, the protection structure includes an external input terminal 91, a connecting rod 931, a metal contact 932, an electromagnet 934, and a limiting end groove 933, the external input terminal 91 is symmetrically fixed on the protection housing 9 and penetrates through the protection housing 9, the limiting end groove 933 is fixed in the protection housing 9 with an opening facing the connecting rod 931, the connecting rod 931 is horizontally disposed in the protection housing 9, one end of the connecting rod 931 is inserted in the limiting end groove 933 and slidably connected with the limiting end groove 933, and one end of the connecting rod 931 close to the limiting end groove 933 penetrates through the protection housing 9 and is provided with a button 9311 at an end; the other end of the connecting rod 931 is close to the electromagnet 934, and one end of the electromagnet 934, which is far away from the connecting rod 931, is fixedly arranged in the protective shell 9 and is electrically connected with the relay KM 1; the metal contacts 932 are fixed to the connecting rods 931 and respectively contact the external input terminals 91 and the positive and negative input terminals P1-P2.
When the comparator N4 detects that the sampling signal is smaller than the current value acquired by the sampling module 4, the comparator N4 outputs a comparison signal to turn on the transistor Q4, so as to trigger the relay KM1, then the relay KM1 drives the electromagnet 934 to act, the electromagnet 934 adsorbs the connecting rod 931, the connecting rod 931 drives the metal contact 932 to slide, so that the connection between the external input terminal 91 and the positive and negative input terminals P1-P2 is disconnected, and thus the circuit is disconnected, the circuit is prevented from being damaged, and the power module is protected.
According to the invention, by arranging the control module 2 and the plurality of groups of output terminals, the circuit can adapt to the input voltage range of 4.3V-36V, and can adapt to a plurality of output requirements, so that the application range of the circuit is improved; the feedback module 7 is arranged, so that the input current can be monitored; by providing the comparison module 8, the output voltage can be stabilized at a predetermined value.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (10)
1. The utility model provides a novel power module, includes positive negative pole input terminal, positive negative pole output terminal, its characterized in that: the power supply device is characterized by further comprising a starting module (1), a control module (2) coupled with the starting module (1), a switch module (3) coupled with the control module (2), a sampling module (4) coupled with the control module (2) and the switch module (3) respectively, a voltage transformation module (5) coupled with the starting module (1) and the switch module (3) and a feedback module (7) coupled with the voltage transformation module (5) and the control module (2), wherein the filtering module (6) is provided with a plurality of groups, and positive and negative output terminals connected with the filtering module (6) are provided with a plurality of groups.
2. The novel power module of claim 1, wherein: the starting module (1) comprises a starting circuit, a first starting capacitor, a first starting inductor and a third starting capacitor, wherein two ends of the first starting capacitor are connected with positive and negative input terminals in parallel, the first starting inductor is connected with a coupling point of the starting circuit and the first capacitor in series, two ends of the third starting capacitor are connected with a mutual deviation end of the first starting inductor and the first starting capacitor in parallel, the starting circuit comprises a first starting resistor, a starting voltage stabilizing diode and an NPN-type starting triode, a K end of the starting voltage stabilizing diode is coupled with the other end of the first starting resistor, a base electrode of the NPN-type starting triode is coupled with the coupling point of the first starting resistor and the starting voltage stabilizing diode, and an; the emitting electrode of the starting triode is coupled with the control module (2) and is grounded through a second starting capacitor, and the collecting electrode of the starting triode is connected with the first starting resistor in parallel through a second starting resistor.
3. The novel power module of claim 2, wherein: the control module (2) comprises a controller and a climbing rate control circuit (21) coupled with the controller, wherein the climbing rate control circuit (21) comprises a climbing control capacitor coupled with the controller and a PNP climbing control triode with a base electrode coupled with a coupling point of the controller and the climbing control capacitor, the collector electrode of the climbing control triode is grounded, and the emitter electrode of the climbing control triode is coupled with the other pin of the controller.
4. The novel power module of claim 3, wherein: the switch module (3) comprises a field effect transistor, one end of the field effect transistor is coupled with the controller through a first switch resistor, the coupling point of the field effect transistor and the first switch resistor is coupled with a second switch resistor, the other end of the second switch resistor is coupled with the output end of the field effect transistor, and the other two ends of the field effect transistor are respectively coupled with the sampling module (4) and the transformation module (5).
5. The novel power module of claim 1, wherein: the sampling module (4) comprises a first sampling resistor, a second sampling resistor and a third sampling resistor, the second sampling resistor and the third sampling resistor are connected in parallel, and the input ends of the second sampling resistor and the third sampling resistor are connected in series; the second sampling resistor and the third sampling resistor are coupled to the coupling point of the first sampling resistor and coupled to the switch module (3), and the other ends of the second sampling resistor and the third sampling resistor which are connected in parallel are grounded; the other end of the first sampling resistor is coupled with the controller.
6. The novel power module of claim 3, wherein: the transformation module (5) comprises a transformer, the transformer comprises at least two groups of primary sides and three groups of secondary sides, one group of primary side input ends of the transformer are coupled with the starting module (1), and the primary side output ends are coupled with the switch module (3); the other group of primary side input ends of the transformers are coupled with the controller, and the output ends of the primary sides are grounded; the secondary sides of the transformers are coupled with the filtering module (6).
7. The novel power module of claim 6, wherein: the filter modules (6) respectively comprise an inductor, a filter diode, a first filter capacitor, a second filter capacitor, a third filter capacitor, a fourth filter capacitor and a filter resistor, wherein the anode of the filter diode is coupled to the secondary side of the transformer, and the cathode of the filter diode is coupled to the anode output terminal; the inductor is connected in series between the cathode and the anode output terminal of the filter diode; the two ends of the first filter capacitor and the second filter capacitor are sequentially connected in parallel with the two ends of the secondary side of the transformer, the third filter capacitor and the fourth filter capacitor are sequentially connected in parallel between the inductor and the output terminal, and the two ends of the third filter capacitor and the fourth filter capacitor are both connected in parallel with the two ends of the secondary side of the transformer; and the filter resistor is connected between the fourth filter capacitor and the circuit output terminal in parallel, and two ends of the filter resistor are respectively connected with the secondary side of the transformer in parallel.
8. The novel power module of claim 7, wherein: the feedback module (7) comprises an optical coupler, the input end of the optical coupler is coupled with the coupling point of the transformer and the inductor through a resistor, the input end of the optical coupler is connected with the comparison module (8) in parallel, one output end of the optical coupler is grounded, and the other output end of the optical coupler is coupled with the controller.
9. The novel power module of claim 8, wherein: the feedback module (7) is connected with a comparison module (8) in parallel, the comparison module (8) comprises a first comparison resistor connected in parallel with a coupling point between the optical coupler and the filtering module (6), and the other end of the first comparison resistor is coupled with the other output end of the optical coupler; a coupling point between the first comparison resistor and the other output end of the optical coupler is connected with a comparison voltage stabilizing diode and a first comparison capacitor in parallel, the first comparison capacitor is connected with the comparison voltage stabilizing diode in parallel, the first comparison capacitor is connected with a second comparison capacitor in parallel, the second comparison capacitor is coupled to a coupling point of the first comparison capacitor and a voltage stabilizing diode, and the other end of the second comparison capacitor is connected with an A end of the comparison voltage stabilizing diode in parallel; the coupling point of the first comparison capacitor and the second comparison capacitor is coupled with a comparison circuit, and the comparison circuit stabilizes the output voltage at a specified value.
10. The novel power module of claim 5, wherein: the device also comprises a protective shell (9), a detection module (92) coupled with the sampling module (4) and a protective structure electrically connected with the detection module (92) are arranged in the protective shell (9), the protection structure comprises two external input terminals (91) fixedly arranged on a protection shell (9), a connecting rod (931) horizontally arranged in the protection shell (9) and connected with the protection shell (9) in a sliding manner, metal contacts (932) fixedly arranged on the connecting rod (931) and respectively abutted against the external input terminals (91) and positive and negative input terminals, and an electromagnet (934) arranged on one side in the protection shell (9) and positioned at one end of the connecting rod (931), the detection module (92) triggers the electromagnet (934) to work, so that the connecting rod (931) drives the metal contact (932) to slide so as to disconnect the external input terminal (91) from the positive and negative input terminals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010972955.9A CN112241191A (en) | 2020-09-16 | 2020-09-16 | Novel power module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010972955.9A CN112241191A (en) | 2020-09-16 | 2020-09-16 | Novel power module |
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| CN112241191A true CN112241191A (en) | 2021-01-19 |
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Application publication date: 20210119 |