CN206023352U - A kind of bus power source and electric power system - Google Patents
A kind of bus power source and electric power system Download PDFInfo
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- CN206023352U CN206023352U CN201620945626.4U CN201620945626U CN206023352U CN 206023352 U CN206023352 U CN 206023352U CN 201620945626 U CN201620945626 U CN 201620945626U CN 206023352 U CN206023352 U CN 206023352U
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Abstract
This utility model provides a kind of bus power source and electric power system, and the bus power source includes：Power supply unit, auxiliary power output end mouth and bus power source output port；Said supply unit, for the input voltage according to outside voltage source input, the first output voltage and the second output voltage is formed, and first output voltage is transferred to the auxiliary power output end mouth, second output voltage is transferred to the bus power source output port；The auxiliary power output end mouth, for first output voltage to be transferred to the first electrical equipment of outside, to be powered to first electrical equipment；The bus power source output port, for second output voltage to be transferred to the second electrical equipment of outside, to be powered to second electrical equipment.This programme can reduce the complexity of supply line.
Description
Technical field
This utility model is related to electronic engineering technical field, more particularly to a kind of bus power source and electric power system.
Background technology
KNX (Konnex agrees the Sa of resistance to Mactra sulcatria Deshayess) system is family, the Automated condtrol of building provides total solution.
Sensor as bus apparatus or executor are connected to KNX by the system that KNX systems are independently of manufacturer and application
On medium, just can be to illuminator, diaphragm system, security system, energy conservation, heating, ventilation, air-conditioning by bus apparatus
System, signal and monitoring system, service interface, building control system, remotely control, metering and white goods etc. are controlled,
Without the need for extra control centre.
By being connected to intelligent switch in the bus of KNX systems, intelligent switch can be passed through to being connected in KNX systems
Illumination, the equipment such as shading and air-conditioning be controlled, intelligent switch is connected with the bus power source in KNX systems, by bus power source
Output port power.
In existing KNX systems, bus power source only includes a bus power source output port, when the power consumption of intelligent switch larger
When, need to arrange multiple bus power sources and be powered for intelligent switch, cause supply line more complicated.
Utility model content
This utility model embodiment provides a kind of bus power source and electric power system, can reduce the complexity of supply line
Property.
This utility model embodiment provides a kind of bus power source, including：Power supply unit, auxiliary power output end mouth and total
Line output port of power source；
Said supply unit, for the input voltage according to outside voltage source input, forms the first output voltage and the
Two output voltages, and first output voltage is transferred to the auxiliary power output end mouth, by second output voltage
It is transferred to the bus power source output port；
The auxiliary power output end mouth, for first output voltage to be transferred to the first electrical equipment of outside,
To be powered to first electrical equipment；
The bus power source output port, for second output voltage to be transferred to the second electrical equipment of outside,
To be powered to second electrical equipment.
Preferably,
Said supply unit includes：Chokes module, the first electric capacity, the second electric capacity, the first Transient Suppression Diode and second
Transient Suppression Diode；
The two ends of first electric capacity and first Transient Suppression Diode respectively be input into the input voltage
Two incoming line is connected, and the plus earth of first Transient Suppression Diode；
First output pin of auxiliary power output end mouth negative pole respectively with first Transient Suppression Diode
And the first input end of the chokes module is connected, the second output pin of the auxiliary power output end mouth and the chokes mould
Second input of block is connected；
The two ends of second electric capacity are connected with the first input end and the second input of the chokes module respectively；
First outfan of the chokes module is connected with the first output pin of the bus power source output port, described
Second outfan of chokes module is connected with the second output pin of the bus power source output port；In the chokes module
One input is connected with the first outfan, and the second input is connected with the second outfan；
The negative pole of second Transient Suppression Diode is connected with the first output pin of the bus power source output port,
The positive pole of second Transient Suppression Diode is connected with the second output pin of the bus power source output port；
The chokes module, for passing through the first input end and the second input of itself to the auxiliary power output end
Mouth output first output voltage, by itself the first outfan and the second outfan to the bus power source output port
Second output voltage is exported, to prevent interfering between first output voltage and second output voltage.
Preferably, the bus power source is further included：Bus power source reset unit；
The bus power source reset unit is connected with the first outfan of the chokes module；
The bus power source reset unit, stops described for according to outside triggering, controlling the chokes module
Two output voltages are transferred to the bus power source output port, and are stopping for second output voltage being transferred to the bus
After the duration of output port of power source reaches preset duration, control the chokes module and restart to pass second output voltage
It is defeated by the bus power source output port.
Preferably,
The bus power source reset unit includes：Reset delay chip, Operation switch, the first light emitting diode and relay
Device；
The Operation switch is connected with the reset delay chip；The input of the reset delay chip and the auxiliary
First output pin of output port of power source is connected；
The positive pole of first light emitting diode is connected with the outfan of the reset delay chip, and described first luminous two
The negative pole of pole pipe is connected with the relay；
The first outfan and the bus power source output respectively with the chokes module of the normally-closed contact of the relay
First output pin of port is connected, and the normally opened contact of the relay is defeated with the first of the bus power source output port respectively
Go out to hand over and the second output pin is connected；
The reset delay chip, for exporting high level signal from outfan after Operation switch closure, by institute
State the first light emitting diode to light, and disconnect the normally-closed contact of the relay, normally opened contact adhesive, so that the chokes mould
Block stops for second output voltage being transferred to the bus power source output port；And the duration in output high level signal
After reaching preset duration, low level signal is exported from outfan, first display lamp is extinguished, and makes the normal of the relay
Closed contact adhesive, normally opened contact disconnect so that the chokes module restart to be transferred to second output voltage described
Bus power source output port.
Preferably, the bus power source is further included：Output protection unit；
The output protection unit is connected with said supply unit；
The output protection unit, pre- for detecting whether the voltage and corresponding electric current of input said supply unit exceed
If threshold value, if input said supply unit voltage exceed default threshold value, send alarm and stop said supply unit
First output voltage and second output voltage are only transmitted；If corresponding with the voltage of input said supply unit
Electric current exceedes default threshold value, sends alarm.
Preferably,
The output protection unit includes：First operational amplifier, the second operational amplifier, the second light emitting diode,
Three light emitting diodes and metal-oxide-semiconductor；
The in-phase input end of first operational amplifier is connected with default reference voltage, first operational amplifier
Reverse input end be connected with the first output pin on the auxiliary power output end mouth, first operational amplifier defeated
Go out end to be connected with the grid of the metal-oxide-semiconductor；
The negative pole of second light emitting diode is connected with the outfan of first operational amplifier, and described second lights
The positive pole of diode is connected with the in-phase input end of first operational amplifier；
The drain electrode of the metal-oxide-semiconductor is connected with the second output pin on the auxiliary power output end mouth, the metal-oxide-semiconductor
Source electrode is grounded by first resistor；
The in-phase input end of second operational amplifier is connected with the source electrode of the metal-oxide-semiconductor, second operation amplifier
The reverse input end of device is connected with the default reference voltage, the outfan of second operational amplifier with described 3rd
The positive pole of optical diode is connected；
The minus earth of the 3rd light emitting diode；
First operational amplifier, the voltage for the first output pin on the auxiliary power output end mouth are big
When the reference voltage of in-phase input end input, low level signal is exported, second light emitting diode is lighted, and made described
Metal-oxide-semiconductor disconnects, so that the output loop of the auxiliary power output end mouth and the bus power source output port disconnects；
Second operational amplifier, for detecting that electric current flows through the voltage produced by the first resistor, when the voltage
When being more than the reference voltage that reverse input end is input into, high level signal is exported, the 3rd light emitting diode is lighted.
Preferably, the bus power source is further included：Filter unit；
The filter unit includes：Electromagnetic interference filter circuit, current rectifying and wave filtering circuit, master power switch circuit, high frequency every
From transformator and secondary commutation filter circuit；
The input of the electromagnetic interference filter circuit is connected with the voltage source of outside, the electromagnetic interference filter circuit
Outfan is connected with the input of the current rectifying and wave filtering circuit；The outfan of the current rectifying and wave filtering circuit and the master power switch
The input of circuit is connected；The outfan of the master power switch circuit is connected with the input of the high-frequency isolation transformer；
The outfan of the high-frequency isolation transformer is connected with the input of the secondary commutation filter circuit；The secondary commutation filtering
The outfan of circuit is connected with said supply unit；
The electromagnetic interference filter circuit, for filtering to the High-frequency Interference in the input voltage, and will filter
The input voltage afterwards is transferred to the current rectifying and wave filtering circuit；
The current rectifying and wave filtering circuit, the input electricity of the form of communication for exporting the electromagnetic interference filter circuit
Pressure is converted to the input voltage of the more smooth DC form of waveform, and the input voltage of the DC form is transferred to described
Master power switch circuit；
The master power switch circuit, for the input voltage of the DC form is processed as high-frequency pulse voltage, and
The high-frequency pulse voltage is transferred to the high-frequency isolation transformer；
The high-frequency isolation transformer, for carrying out blood pressure lowering to the high-frequency pulse voltage of the master power switch circuit output
Process, form low-voltage high-frequency pulsating volage, and the low-voltage high-frequency pulsating volage is transferred to the secondary commutation filter circuit；
The secondary commutation filter circuit, for the low-voltage high-frequency pulsation electricity exported by the high-frequency isolation transformer
Pressure carries out rectifying and wave-filtering process, to filter the high frequency ripple that the high-frequency isolation transformer is produced in blood pressure lowering processing procedure, shape
Into the input voltage of low-voltage direct form, and the input voltage is transferred to said supply unit.
Preferably, the bus power source is further included：Voltage regulation unit；
The voltage regulation unit includes：Voltage error detection circuit, photoelectrical coupler and pulse width modulation (PWM) control electricity
Road；
The input of the voltage error detection circuit is connected with the secondary commutation filter circuit, the voltage error inspection
The outfan of slowdown monitoring circuit is connected with the input of the photoelectrical coupler；The outfan of the photoelectrical coupler is controlled with the PWM
The first input end of circuit processed is connected；The outfan of the pwm control circuit is connected with the master power switch circuit；
The voltage error detects circuit, for the input voltage that export according to the secondary commutation filter circuit and
Difference between default reference voltage, forms error correction signal；
The photoelectrical coupler, for isolating voltage error detection circuit, and by pre- with the pwm control circuit
If the error correction signal is transferred to the pwm control circuit by ratio；
The pwm control circuit, for the institute according to the error correction signal to the master power switch circuit output
The pulsewidth for stating high-frequency pulse voltage is controlled, so that the high-frequency isolation transformer is exported to the secondary commutation filter circuit
The constant low-voltage high-frequency pulsating volage.
Preferably,
Second input of the pwm control circuit is connected with the master power switch circuit,
The pwm control circuit, is further used for the electricity of the high-frequency pulse voltage in the master power switch circuit output
Pressure value stops the output high-frequency pulse voltage more than the active switch circuit after default reference value, is controlled.
Preferably,
The pwm control circuit, is further used for the temperature for detecting designated area, when the temperature of the designated area is more than
After default threshold value, control the active switch circuit and stop the output high-frequency pulse voltage.
This utility model embodiment additionally provides a kind of electric power system, including：Voltage source, the first electrical equipment, second are used
Any one bus power source that electric equipment and this utility model embodiment are provided；
The voltage source, for transmitting the input voltage to the bus power source；
First electrical equipment, for receiving first output voltage of the bus power source output；
Second electrical equipment, for receiving second output voltage of the bus power source output.
Bus power source and electric power system that this utility model embodiment is provided, include auxiliary power output end mouth and bus
Two supply ports of output port of power source, power supply unit are transmitted to auxiliary power output end mouth and bus power source output port respectively
First output voltage and the second output voltage；When the power consumption of electrical equipment is larger, can be by auxiliary power output end mouth and total
Line output port of power source is all connected in the electrical equipment, electrical equipment is powered by the two supply ports, it is ensured that
By a bus power source just can use electric equipment can normal work, so as to reduce the complexity of supply line.
Description of the drawings
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or accompanying drawing to be used is briefly described needed for description of the prior art, it should be apparent that, drawings in the following description are these
Some embodiments of utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to these accompanying drawings.
Fig. 1 is a kind of schematic diagram of bus power source that this utility model one embodiment is provided；
Fig. 2 is a kind of schematic diagram of bus power source that this utility model another embodiment is provided；
Fig. 3 is a kind of showing for bus power source including bus power source reset unit that this utility model one embodiment is provided
It is intended to；
Fig. 4 is a kind of bus power source including bus power source reset unit of another embodiment offer of this utility model
Schematic diagram；
Fig. 5 is a kind of signal of bus power source including output protection unit that this utility model one embodiment is provided
Figure；
Fig. 6 is a kind of schematic diagram of output protection unit that this utility model one embodiment is provided；
Fig. 7 is a kind of schematic diagram of filter unit that this utility model one embodiment is provided；
Fig. 8 is a kind of schematic diagram of voltage regulation unit that this utility model one embodiment is provided；
Fig. 9 is a kind of schematic diagram of electric power system that this utility model one embodiment is provided.
Specific embodiment
Purpose, technical scheme and advantage for making this utility model embodiment is clearer, new below in conjunction with this practicality
Accompanying drawing in type embodiment, is clearly and completely described to the technical scheme in this utility model embodiment, it is clear that retouched
The embodiment that states is a part of embodiment of this utility model, rather than whole embodiments, based on this utility model in enforcement
Example, the every other embodiment obtained on the premise of creative work is not made by those of ordinary skill in the art all belong to
Scope in this utility model protection.
As shown in figure 1, this utility model embodiment provides a kind of bus power source, including：Power supply unit 101, auxiliary electricity
Source output terminal mouth 102 and bus power source output port 103；
Said supply unit 101, for the input voltage according to outside voltage source input, formed the first output voltage and
Second output voltage, and first output voltage is transferred to the auxiliary power output end mouth 102, described second is exported
Voltage is transferred to the bus power source output port 103；
The auxiliary power output end mouth 102, sets for first output voltage to be transferred to the first electricity consumption of outside
Standby, to be powered to first electrical equipment；
The bus power source output port 103, sets for second output voltage to be transferred to the second electricity consumption of outside
Standby, to be powered to second electrical equipment.
This utility model embodiment provides a kind of bus power source, includes auxiliary power output end mouth and bus power source is defeated
Two supply ports of exit port, power supply unit are defeated to auxiliary power output end mouth and the transmission first of bus power source output port respectively
Go out voltage and the second output voltage；When the power consumption of electrical equipment is larger, can be by auxiliary power output end mouth and bus power source
Output port is all connected in the electrical equipment, electrical equipment is powered by the two supply ports, it is ensured that by one
Individual bus power source just can use electric equipment can normal work, so as to reduce the complexity of supply line.
In this utility model one embodiment, as shown in Fig. 2 power supply unit includes：Chokes module, the first electric capacity CC3,
Second electric capacity CC2, the first Transient Suppression Diode TVS2 and the second Transient Suppression Diode TVS3；
Input voltage is input into power supply unit by socket CN5, the first electric capacity CC3's and the first Transient Suppression Diode TVS2
Two ends are respectively connected with two incoming lines of socket CN5, and the plus earth of the first Transient Suppression Diode TVS2；
First output pin 1 of auxiliary power output end mouth CN3 negative pole respectively with the first Transient Suppression Diode TVS2
And the first input end a of chokes module is connected, the of second output pin 3 of auxiliary power output end mouth CN3 and chokes module
Two input b are connected；
The two ends of the second electric capacity CC2 are connected with the first input end a and the second input b of chokes module respectively；
First output pin 3 of the first outfan d and bus power source output port CN4 of chokes module is connected, chokes mould
Second output pin 1 of the second output port c and bus power source output port CN4 of block is connected；The first of the chokes module
Input a is connected with the first outfan d, and the second input b is connected with the second outfan c；
The negative pole of the second Transient Suppression Diode TVS3 is connected with first output pin 3 of bus power source output port CN4,
The positive pole of the second Transient Suppression Diode TVS3 is connected with second output pin 1 of bus power source output port CN4；
Chokes module, for by first input end a and the second input b to auxiliary power output end mouth CN3 outputs the
One output voltage, exports the second output voltage by the first outfan c and the second outfan d to bus power source output port CN4,
To prevent interfering between the first output voltage and the second output voltage.
Specifically,
It is divided into two outlet lines, first outlet line and auxiliary power output end after input voltage input power supply unit
Mouth CN3 is connected, and Article 2 outlet line is connected with bus power source output port CN4, and first outlet line is exported with Article 2
It is connected by chokes module between circuit.As auxiliary power output end mouth CN3 is used for powering for electrical equipment, and bus power source
Output port CN4 is applied not only to power for electrical equipment, is additionally operable to transmission signal, and chokes module can effectively in limiting circuitry
Interference signal, prevent from interfering with each other between auxiliary power output end mouth CN3 and bus power source output port CN4.
In this utility model one embodiment, as shown in figure 3, bus power source also includes bus power source reset unit
304；
Bus power source reset unit 304 is connected with the first outfan of chokes module in power supply unit 101；
Bus power source reset unit 304, for according to outside triggering, control chokes module stops the second output voltage
Be transferred to bus power source output port 103, and stop by the second output voltage be transferred to bus power source output port 103 when
After length reaches preset duration, control chokes module restarts for the second output voltage to be transferred to bus power source output port 103.
Specifically,
When crashing occurs in the electrical equipment being connected with bus power source output port 103, Trigger Bus power supply is multiple
Bit location 304, after toggled, control chokes module stops to bus power source output port bus power source reset unit 304
103 the second output voltages of transmission, reach in the duration for stopping transmitting the second output voltage to bus power source output port 103 default
After duration, the electrical equipment that is powered by bus power source output port 103 will appear from power-off shutdown, now bus power source reset unit
304 control chokes modules restart to transmit the second output voltage to bus power source output port 103, by bus power source outfan
The electrical equipments of 103 power supply of mouth are restarted in the presence of the second output voltage.So, when with 103 phase of bus power source output port
When crashing occurs in electrical equipment even, just electrical equipment can be restarted by bus power source reset unit 304, need not be cut
The disconnected circuit is powered by whole bus power source, improves the convenience for solving electrical equipment deadlock situation.
In this utility model one embodiment, as shown in figure 4, bus power source reset unit includes：Reset delay chip
UC3, Operation switch S1, the first LED 1 and relay O；
Operation switch S1 is connected with reset delay chip UC3, and the input of reset delay chip UC3 is exported with accessory power supply
First output pin 1 of port CN3 is connected；
The positive pole of the first LED 1 is connected with the outfan of reset delay chip UC3, the first light emitting diode
The negative pole of LED1 is connected with relay O；
The normally-closed contact of relay O respectively with the first outfan d and bus power source output port CN4 of chokes module
One output pin 3 is connected, the normally opened contact of relay O respectively with first output pin 3 of bus power source output port CN4 and the
Two output pins 1 are connected；
Reset delay chip UC3, for exporting high level signal from outfan after Operation switch S1 closure, by first
Optical diode LED1 is lighted, and disconnects the normally-closed contact of relay O, normally opened contact adhesive, so that chokes module stops the
Two output voltages are transferred to bus power source output port CN4；And after the duration of output high level signal reaches preset duration,
Low level signal is exported from outfan, the first LED 1 is extinguished, and is made the normally-closed contact adhesive of relay O, often
Contact disconnection is opened, so that chokes module restarts for the second output voltage to be transferred to bus power source output port CN4.
Specifically,
One input of reset delay chip UC3 is connected with the emitter stage of audion Q4, the colelctor electrode of audion Q4 with
First output pin 1 of auxiliary power output end mouth CN3 is connected, and the base stage of audion Q4 is negative with Transient Suppression Diode UC1
Extremely it is connected；The plus earth of Transient Suppression Diode UC1；One end of resistance RC13 is connected with the emitter stage of audion Q4, resistance
The other end of RC13 is connected with one end of resistance RC14 and the positive pole of Transient Suppression Diode UC1 respectively；Resistance RC14's is another
End ground connection；One end ground connection of electric capacity CC8, the other end are connected with the emitter stage of audion Q4；
One end of Operation switch S1 is connected with an interface of reset delay chip UC3, the other end of Operation switch S1 with
One end of resistance RC17 is connected, and the other end of resistance RC17 is another with one end of resistance RC12 and reset delay chip UC3 respectively
One interface is connected；The other end of resistance RC12 is connected with an outfan of reset delay chip UC3；The two ends of electric capacity CC9
It is connected with the two ends of resistance RC12 respectively；On the earth-free one end of electric capacity CC8 and resistance RC12 away from resistance RC17 one end phase
Even；
Another outfan of reset delay chip UC3 is connected with the positive pole of the first LED 1, and first lights
The negative pole of diode (LED) 1 is connected with one end of resistance RC8, and the other end of resistance RC8 is connected with the base stage of audion QC3, three poles
The colelctor electrode of pipe QC3 is connected with one end of resistance RC7, the other end of resistance RC7 positive pole and relay respectively with diode DC2
One input of O is connected；The negative pole of diode DC2 another input and auxiliary power output end respectively with relay O
First output pin 1 of mouth CN3 is connected, and (i.e. in Fig. 4, three are marked with V0Node be connected with each other)；The base stage of audion QC3 is led to
Cross electric capacity CC5 ground connection, the grounded emitter of audion QC3.
When the electrical equipment being connected with bus power source outfan CN4 occurs to crash, Operation switch S1 is closed, operation is opened
After closing S1 closures, reset delay chip UC3 starts timing, and exports from the outfan for being connected with the first LED 1 high
Level, reset delay chip UC3 output high level the first LED 1 is lighted, in the presence of the high level after
The normally-closed contact of electrical equipment O disconnects, normally opened contact adhesive, now the first outfan of chokes module and bus power source output port
First output pin of CN4 disconnects, and two output pins of bus power source output port CN4 are mutually short-circuit, bus power source outfan
Mouth CN4 stops the second output voltage of output；After the timing duration of reset delay chip UC3 reaches preset duration, reset delay
Chip UC3 exports low level from the outfan for being connected with the first LED 1, and low level is by the first light emitting diode
LED1 extinguishes, in the presence of the low level normally-closed contact adhesive of relay O, and normally opened contact disconnects, now chokes module
First output pin of the first outfan d and bus power source output port CN4 is reconnected, and bus power source output port CN4 is opened
Begin the second output voltage of output.When the electrical equipment being connected with bus power source output port CN4 occurs to crash, relay O will
First output pin 3 and the second output pin 1 of bus power source output port CN4 is mutually short-circuit, can so discharge electrical equipment
The electric energy stored in interior electric capacity, prevents the electric energy stored in electric capacity from working on using electric equipment, causes push switch nothing
The situation of effect occurs, it is ensured that by bus power source reset unit electrical equipment can be restarted ageing.
For example, after the intelligent switch being connected with bus power source output port CN4 is crashed, Operation switch S1 is pressed
Under, now the first LED 1 is lighted, and bus power source output port CN4 stops powering intelligent switch, when stopping is supplied
After the duration of electricity reaches preset duration, intelligent switch shuts down；First LED 1 extinguishes afterwards, bus power source outfan
Mouth CN4 restarts to power intelligent switch, realizes restarting for intelligent switch.So, intelligence just can be realized by Operation switch
Can switched restarts, and need not cut off the input power of whole bus power source, improve the simplicity restarted by intelligent switch；
In addition, can determine the process of restarting of intelligent switch by the first LED 1, conveniently intelligent switch is managed.
In this utility model one embodiment, as shown in figure 5, bus power source has further included output protection unit
505；
Output protection unit 505 is connected with power supply unit 101；
Output protection unit 505, default for detecting whether the voltage and corresponding electric current of input power supply unit 101 exceed
Threshold value, if input power supply unit 101 voltage exceed default threshold value, send alarm and make power supply unit 101 stop pass
Defeated first output voltage and the second output voltage；If the electric current corresponding with the voltage of input power supply unit 101 exceedes default
Threshold value, send alarm.
By output protection unit, after the voltage for being input into power supply unit exceedes preset value, output protection unit sends report
Alarming information and make power supply unit stop to auxiliary power output end mouth and bus power source output port transmit the first output voltage and
Second transmission voltage；After the electric current corresponding with the voltage of input power supply unit exceedes preset value, output protection unit sends
Warning message.So, the safety of bus power source is not only increased, and can determines that bus power source occurs according to warning information
Problem, convenient produced problem is solved in time.
In this utility model one embodiment, as shown in fig. 6, output protection unit includes：First operational amplifier
UC2A, the second operational amplifier UC2C, the second LED 2, the 3rd LED 3 and metal-oxide-semiconductor Q5；
The in-phase input end of the first operational amplifier UC2A is connected with default reference voltage 5V, the first operational amplifier
The reverse input end of UC2A is connected with the first output pin on auxiliary power output end mouth, and the first operational amplifier UC2A's is defeated
Go out end to be connected with the grid of metal-oxide-semiconductor Q5；
The negative pole of the second LED 2 is connected with the outfan of the first operational amplifier UC2A, the second light-emitting diodes
The positive pole of pipe LED2 is connected with the in-phase input end of the first operational amplifier UC2A；
The drain electrode of metal-oxide-semiconductor Q5 is connected with the second output pin on auxiliary power output end mouth, and the source electrode of metal-oxide-semiconductor Q5 passes through
First resistor RS2 is grounded；
The in-phase input end of the second operational amplifier UC2C is connected with the source electrode of metal-oxide-semiconductor Q5 by resistance RC24, the second fortune
The reverse input end for calculating amplifier UC2C is connected with default reference voltage 5V by resistance RC23, the second operational amplifier UC2C
Outfan be connected with the positive pole of the 3rd LED 3；
The minus earth of the 3rd LED 3；
First operational amplifier UC2A, the voltage for the first output pin on auxiliary power output end mouth are more than together
During the reference voltage of phase input input, low level signal is exported, the second LED 2 is lighted, and is made metal-oxide-semiconductor Q5
Disconnect, so that the output loop of auxiliary power output end mouth and bus power source output port disconnects；
Second operational amplifier UC2C, for detecting that electric current flows through the voltage produced by first resistor RS2, when the voltage big
When the reference voltage of direction input input, high level signal is exported, the 3rd LED 3 is lighted.
Specifically,
The in-phase input end of the first operational amplifier UC2A is connected with one end of resistance RC18, the other end of resistance RC18 with
Reference voltage 5V is connected (can be connected with the node for marking 5V in Fig. 4)；The reverse input end of the first operational amplifier UC2A point
It is not connected with one end of resistance RC19 and one end of resistance RC20, the other end ground connection of resistance RC19, the other end of resistance RC20
It is connected with the first output pin 1 on auxiliary power output end mouth CN3 in Fig. 2 or Fig. 4 and (i.e. in Fig. 6, marks V0Node and Fig. 2
Or in Fig. 4, mark V0Node be connected)；The two ends of electric capacity CC11 respectively with the in-phase input end of the first operational amplifier UC2A and
Reverse input end is connected；The outfan of the first operational amplifier UC2A is connected with one end of resistance RC26, and resistance RC26's is another
End is connected with the grid of metal-oxide-semiconductor Q5；The grid of metal-oxide-semiconductor Q5 is connected with one end of resistance RC9, the other end and metal-oxide-semiconductor of resistance RC9
Q5 source electrodes are connected；The drain electrode of metal-oxide-semiconductor Q5 is connected with the second output pin 2 on auxiliary power output end mouth CN3 in Fig. 2 or Fig. 4
(i.e. in Fig. 6, mark V0-Node and Fig. 2 or Fig. 4 in mark V0-Node be connected).
The in-phase input end of the second operational amplifier UC2C is connected with one end of resistance RC24, the other end of resistance RC24 with
The source electrode of metal-oxide-semiconductor Q5 is connected；The reverse input end of the second operational amplifier UC2C is connected with one end of resistance RC23, resistance RC23
The other end be connected with reference voltage 5V (can with Fig. 4 mark 5V node be connected)；The two ends of electric capacity CC12 are respectively with
The in-phase input end and reverse input end of two operational amplifier UC2C is connected；One end of resistance RC22 and the second operational amplifier
The reverse input end of UC2C is connected, and the other end is grounded；The outfan of the second operational amplifier UC2C and one end phase of resistance RC21
Even, the other end of resistance RC21 is connected with the positive pole of the 3rd LED 3, and the negative pole of the 3rd LED 3 connects
Ground；The two ends of electric capacity CC13 are connected with the second operational amplifier UC2C outfans and reverse input end respectively.
Resistance RC19 and resistance RC20 is to the voltage V that is input into from input socket CN50Carry out partial pressure, the first operational amplifier
UC2A will be compared with reference voltage 5V by the voltage after resistance RC19 and resistance RC20 partial pressures, if the voltage after partial pressure is big
In reference voltage, the outfan output low level signal of the first operational amplifier UC2A, now the second LED 2 is being just
Voltage of the voltage of pole more than negative pole, the second LED 2 are lit；Metal-oxide-semiconductor Q5 is in the first operational amplifier simultaneously
Cut-off state is in the presence of the low level of UC2A outputs, metal-oxide-semiconductor Q5 causes auxiliary power output end mouth in cut-off state
The output pin of CN3 and bus power source output port CN4 cannot form loop, and auxiliary power output end mouth CN3 stops output the
One output voltage, bus power source output port CN4 stop the second output voltage of output.So, as auxiliary power output end mouth CN3
Or during bus power source output port CN4 appearance overvoltages, the second LED 2 is lit, and is automatically stopped to accessory power supply
Output port CN3 and bus power source output port CN4 transmission output voltages.
When the homophase input for flowing through the voltage produced by the electric current of first resistor RS2 and acting on the second operational amplifier UC2C
During end, if the voltage makes the voltage of the positive input of the second operational amplifier UC2C more than the voltage of reverse input end, the
3rd LED 3 is lighted by the outfan output high level signal of two operational amplifier UC2C, the high level signal.
So, when excessively stream occur in the first output voltage and the corresponding electric current of the second output voltage, the 3rd LED 3 is lit.
Situation lighted according to the second LED 2 and the 3rd LED 3, it can be determined that accessory power supply
Whether output port CN3 and bus power source output port CN4 there is overvoltage and excessively stream, as auxiliary power output end mouth CN3 and always
Stopping to auxiliary power output end mouth CN3 and bus power source output port CN4 during overvoltage occurs in line output port of power source CN4
Transmission output voltage, so that improve the safety of the bus power source.
In this utility model one embodiment, bus power source also includes filter unit, as shown in fig. 7, filter unit
Including：Electromagnetic interference filter circuit 701, current rectifying and wave filtering circuit 702, master power switch circuit 703, high-frequency isolation transformer 704
And secondary commutation filter circuit 705；
The input of electromagnetic interference filter circuit 701 with outside voltage source be connected, electromagnetic interference filter circuit 701 defeated
Go out end to be connected with the input of current rectifying and wave filtering circuit 702；The outfan of current rectifying and wave filtering circuit 702 and master power switch circuit 703
Input be connected；The outfan of master power switch circuit 703 is connected with the input of high-frequency isolation transformer 704；High frequency every
Outfan from transformator 704 is connected with the input of secondary commutation filter circuit 705；Secondary commutation filter circuit 705 defeated
Go out end to be connected with power supply unit；
Electromagnetic interference filter circuit 701, filters for the High-frequency Interference in input voltage, and by filtration after defeated
Enter voltage and be transferred to current rectifying and wave filtering circuit 702；
Current rectifying and wave filtering circuit 702, the input voltage conversion of the form of communication for exporting electromagnetic interference filter circuit 701
For the input voltage of the more smooth DC form of waveform, and the input voltage of DC form is transferred to master power switch circuit
703；
Master power switch circuit 703, for being processed as high-frequency pulse voltage by the input voltage of DC form, and by high frequency
Pulsating volage is transferred to high-frequency isolation transformer 704；
High-frequency isolation transformer 704, for carrying out at blood pressure lowering to the high-frequency pulse voltage that master power switch circuit 703 is exported
Reason, forms low-voltage high-frequency pulsating volage, and low-voltage high-frequency pulsating volage is transferred to secondary commutation filter circuit 705；
Secondary commutation filter circuit 705, for carrying out to the low-voltage high-frequency pulsating volage that high-frequency isolation transformer 704 is exported
Rectifying and wave-filtering process, to filter the high frequency ripple that high-frequency isolation transformer 704 is produced in blood pressure lowering processing procedure, forms low-pressure direct
Streamed input voltage, and the input voltage is transferred to said supply unit.
Specifically,
Socket CN1 in electromagnetic interference filter circuit 701 is connected with the alternating current power supply of outside, secondary commutation filter circuit
Socket CN2 in 705 is connected with the socket CN5 of the power supply unit shown in Fig. 2 or Fig. 4.By filter unit each circuit
Process, the input voltage that external voltage source is input into is processed as stable input voltage and is transferred to power supply unit by filter unit, supply
Electric unit is according to the input voltage for receiving to auxiliary power output end mouth and bus power source output port transmission electric current, it is ensured that
Stability and reliability that auxiliary power output end mouth and bus power source output port are powered.
In this utility model one embodiment, bus power source can also include voltage regulation unit, as shown in figure 8, voltage stabilizing list
Unit includes：Voltage error detection circuit 801, photoelectrical coupler 802 and pulse width modulation (PWM) control circuit 803；
As shown in Figures 7 and 8, the input of voltage error detection circuit 801 is connected with secondary commutation filter circuit 705,
The outfan of voltage error detection circuit 801 is connected with the input of photoelectrical coupler 802；The outfan of photoelectrical coupler 802
It is connected with the first input end of pwm control circuit 803；The outfan of pwm control circuit 803 and 703 phase of master power switch circuit
Even；
Voltage error detects circuit 801, for the input voltage that exported according to secondary commutation filter circuit 705 with default
Difference between reference voltage, forms error correction signal；
By voltage error, photoelectrical coupler 802, for detecting that circuit 801 is isolated with pwm control circuit 803, and by default
Error correction signal is transferred to pwm control circuit 803 by ratio
Pwm control circuit 803, for the high-frequency pulse voltage according to error correction signal to master power switch circuit output
Pulsewidth be controlled so that high-frequency isolation transformer 704 exports constant low-voltage high-frequency arteries and veins to secondary commutation filter circuit 705
Galvanic electricity pressure.
Specifically,
As shown in Figures 7 and 8, V is marked in voltage error detection circuit 801+Node and secondary commutation filter circuit 705
Middle mark V+Node be connected；The node and mark CS in master power switch circuit 703 of Cs is marked in pwm control circuit 803
Node is connected；The node for marking PWM in pwm control circuit 803 is connected with the node for marking PWM in master power switch circuit 703；
V is marked in pwm control circuit 803stNode and electromagnetic interference filter circuit 701 in mark VstNode be connected.
Voltage error detection circuit 801 is detected to the input voltage exported by secondary commutation filter circuit 705, will be examined
The input voltage that measures is compared with reference voltage, according to the difference between input voltage and reference voltage, is formed error and is repaiied
Error correction signal is passed to pwm control circuit 803 by photoelectrical coupler 803 by positive signal；In pwm control circuit 803
Control chip U1 after error correction signal is received, control chip U1 according to error correction signal, by port PWM to main work(
Metal-oxide-semiconductor Q1 in rate on-off circuit 703 sends the low and high level signal changed with certain frequency, and metal-oxide-semiconductor Q1 is according to receiving
The low and high level signal of change carries out on or off, so as to the input of the DC form for exporting current rectifying and wave filtering circuit 702 is electric
Pressure is processed as high-frequency pulse voltage, and the high-frequency pulse voltage forms low-voltage high-frequency pulsation electricity after high-frequency isolation transformer 704
Pressure.
When the input voltage exported by secondary commutation filter circuit 705 is more than default reference voltage, control chip U1
Change frequency to the sent low and high level signals of metal-oxide-semiconductor Q1 is increased according to error correction signal, master power switch circuit 703 is made
The pulsewidth of the high-frequency pulse voltage of output reduces, and is transferred to secondary commutation filter circuit so as to reduce high-frequency isolation transformer 704
705 low-voltage high-frequency pulsating volage, the input voltage for finally being exported secondary commutation filter circuit 705 reduce；When secondary whole
When the input voltage exported by stream filter circuit 705 is less than default reference voltage, control chip U1 is according to error correction signal
Reduce the change frequency to the sent low and high level signals of metal-oxide-semiconductor Q1, make the dither electricity of the output of master power switch circuit 703
The pulsewidth of pressure increases, and is transferred to the low-voltage high-frequency pulsation of secondary commutation filter circuit 705 so as to increase high-frequency isolation transformer 704
Voltage, the input voltage increase for finally being exported secondary commutation filter circuit 705.So, by voltage error detect circuit,
Pwm control circuit and the synergy of master power switch circuit, it is ensured that secondary commutation filter circuit can export stable input
Voltage, improves the stability that the bus power source is powered.
In this utility model one embodiment, the second input of pwm control circuit is connected with master power switch circuit,
Pwm control circuit is used for after the magnitude of voltage of the high-frequency pulse voltage of master power switch circuit output is more than default reference value,
Control master power switch circuit stops output high-frequency pulse voltage.When voltage error detects that circuit or secondary commutation filter circuit go out
After the voltage that existing failure causes master power switch circuit to be exported exceedes default reference value, master power switch circuit is controlled in PWM
Stop output high-frequency pulse voltage under the control of circuit processed, prevent the high-frequency pulse voltage for exporting higher voltage value from causing electricity consumption to set
Standby or other associated electronic circuitries are damaged.
Specifically,
As shown in figure 8, marking V in pwm control circuit 803CC～Node and master power switch circuit 703 in mark VCC～
Node be connected；In pwm control circuit 803, the positive pole of diode D5 and node VCC～Be connected, the negative pole of diode D5 with electricity
One end of resistance R12 is connected, and the other end of resistance R12 is connected with the negative pole of Zener diode ZD1, the positive pole of Zener diode ZD1
It is connected with the positive pole of diode D4, the negative pole of diode D4 is connected with the input e on control chip U1；Electric capacity C2 and electric capacity C7
Parallel connection, one end are connected with the negative pole of Zener diode ZD1, and the other end connects signal ground；One end of resistance R11 and Zener diode
The positive pole of ZD1 is connected, and the other end connects signal ground；Input e phases on one end of thermal resistor RT1 and control chip U1
Even, the other end of thermal resistor RT1 is connected with one end of resistance R9, the other end connection signal ground of resistance R9；Electric capacity C10's
One end is connected with the input e on control chip U1, the other end connection signal ground of electric capacity C10.
As shown in Figures 7 and 8, when the dither exported to high-frequency isolation transformer 704 by master power switch circuit 703
After the magnitude of voltage of voltage exceedes default reference voltage, the voltage makes Zener diode ZD1 anti-by diode D5 and resistance R12
To conducting, after input e input high level signals from diode D4 to control chip U1；Control chip U1 is receiving this
After high level signal, high level signal or low level signal are persistently sent to master power switch circuit 703 by PWM port, this
Sample master power switch circuit 703 cannot form high-frequency pulse voltage, so that master power switch circuit 703 interrupts to high-frequency isolation
Transformator 704 transmits electric energy, until after the socket CN1 in electromagnetic interference filter circuit 701 is disconnected with voltage source again
Connection.
By pwm control circuit and output protection circuit, realize to bus power source excessively stream and the duplicate protection of overvoltage, it is ensured that
Bus power source can be taken when there is overvoltage or excessively stream and be effectively protected action, improve the safety of bus power source.
In this utility model one embodiment, as shown in figure 8, in pwm control circuit 803, thermal resistor RT1's
Resistance reduces with the rising of its local environment temperature, can be to control after the resistance of thermal resistor RT1 is less than default resistance
The input e input low level signals of coremaking piece U1, control chip U1 after the low level signal is received, by PWM port
High level signal or low level signal are persistently sent to master power switch circuit 703, and such master power switch circuit 703 cannot shape
Into high-frequency pulse voltage, so that master power switch circuit 703 interrupts transmitting electric energy to high-frequency isolation transformer 704, until will
Socket CN1 in electromagnetic interference filter circuit 701 is reconnected after being disconnected with voltage source.
By being multiplexed the input e on control chip U1, can either realize protecting the overvoltage of bus power source
Shield, can realize the overheat protector to bus power source again, need not be separately provided other control logics, reduce the complexity of bus power source
Property；The too high component wear for causing bus power source to include of temperature can be prevented simultaneously, the safety of bus power source is further increased
Property.
This utility model one embodiment provides a kind of bus power source, including the power supply unit shown in Fig. 4, accessory power supply
Shown in output protection unit, Fig. 7 shown in output port, bus power source output port, bus power source reset unit and Fig. 6
Voltage regulation unit described in filter unit and Fig. 8, in Fig. 4 and Fig. 6 to Fig. 8, each node for being labeled with identical label is mutually interconnected
Connect.
As shown in figure 9, a kind of electric power system in this utility model one embodiment, is provided, including：Voltage source 901,
Any one bus power source 904 that one electrical equipment 902, the second electrical equipment 903 and this utility model embodiment are provided；
Voltage source 901, for transmitting the input voltage to bus power source 904；
First electrical equipment 902, for receiving the first output voltage of the output of bus power source 904；
Second electrical equipment 903, for receiving the second output voltage that bus power source defeated 904 goes out.
In this utility model embodiment, the first electrical equipment 902 and the second electrical equipment 903 can be same electricity consumption
Equipment.When the first electrical equipment 902 and the second electrical equipment 903 are same electrical equipment, the output of bus power source 904 first
Output voltage and the second output voltage are powered to the electrical equipment, it is ensured that can be provided electricity consumption by a bus power source and be set
Standby required voltage, need not arrange multiple bus power sources such that it is able to reduce the complexity of supply line.
Bus power source and electric power system that this utility model embodiment is provided, at least have the advantages that：
1st, in the bus power source and electric power system that this utility model embodiment is provided, auxiliary power output end mouth is included
And two supply ports of bus power source output port, power supply unit is respectively to auxiliary power output end mouth and bus power source outfan
The first output voltage of port transmission and the second output voltage；When the power consumption of electrical equipment is larger, can be by auxiliary power output end
Mouth and bus power source output port are all connected in the electrical equipment, electrical equipment are supplied by the two supply ports
Electricity, it is ensured that by a bus power source just can use electric equipment can normal work, so as to reduce the complexity of supply line
Property.
2nd, in the bus power source and electric power system that this utility model embodiment is provided, auxiliary power output end mouth and bus
Chokes module is provided between output port of power source, and chokes module ensures that the power supply process of auxiliary power output end mouth will not be to total
The control signal that transmits in line output port of power source is impacted, so as to ensure bus power source output port energy while power supply
Enough accurate transmission of control signals, ensure bus power source transmission of control signals while the bus power source power supply capacity is improved
Accuracy.
3rd, in the bus power source and electric power system that this utility model embodiment is provided, bus power source includes accessory power supply
Two supply ports of output port and bus power source output port, when the power consumption of electrical equipment is less, can be separately through total
Line output port of power source is powered for electrical equipment, and transmits the control signal of electrical equipment；When the power consumption of electrical equipment is larger,
Can be powered for electrical equipment by bus power source output port and auxiliary power output end mouth, while being exported by bus power source
The control signal of port transmission electrical equipment, improves the suitability of the bus power source.
4th, in the bus power source and electric power system that this utility model embodiment is provided, output protection unit and steady is included
Pressure unit, output protection unit are carried out to excessively stream or overpressure conditions at auxiliary power output end mouth and bus power source output port
Protection, voltage regulation unit was protected to excessively stream and overpressure conditions before power supply unit, by output protection unit and voltage stabilizing list
The duplicate protection of unit, improves the safety of bus power source.
It should be noted that herein, such as first and second etc relational terms are used merely to an entity
Or operation is made a distinction with another entity or operation, and not necessarily require or imply presence between these entities or operation
Any this actual relation or order.And, term " including ", "comprising" or its any other variant are intended to non-
Exclusiveness includes, so that a series of process, method, article or equipment including key elements not only include those key elements,
But also other key elements including being not expressly set out, or also include solid by this process, method, article or equipment
Some key elements.In the absence of more restrictions, the key element for being limited by sentence " including ", does not arrange
Remove and also there is other same factor in process, method, article or the equipment for including the key element.
One of ordinary skill in the art will appreciate that：Realize that all or part of step of said method embodiment can pass through
Completing, aforesaid program can be stored in the storage medium of embodied on computer readable the related hardware of programmed instruction, the program
Upon execution, the step of including said method embodiment is executed；And aforesaid storage medium includes：ROM, RAM, magnetic disc or light
Disk etc. is various can be with the medium of store program codes in.
Last it should be noted that：Preferred embodiment of the present utility model is the foregoing is only, this practicality is merely to illustrate
New technical scheme, is not intended to limit protection domain of the present utility model.All of the present utility model spirit and principle it
Interior done any modification, equivalent substitution and improvements etc., are all contained in protection domain of the present utility model.
Claims (10)
1. a kind of bus power source, it is characterised in that include：Power supply unit, auxiliary power output end mouth and bus power source outfan
Mouthful；
Said supply unit, for the input voltage according to outside voltage source input, forms the first output voltage and second defeated
Go out voltage, and first output voltage is transferred to the auxiliary power output end mouth, second output voltage is transmitted
Give the bus power source output port；
The auxiliary power output end mouth, for first output voltage to be transferred to the first electrical equipment of outside, with right
First electrical equipment is powered；
The bus power source output port, for second output voltage to be transferred to the second electrical equipment of outside, with right
Second electrical equipment is powered.
2. bus power source according to claim 1, it is characterised in that
Said supply unit includes：Chokes module, the first electric capacity, the second electric capacity, the first Transient Suppression Diode and the second transient state
Suppress diode；
The two ends of first electric capacity and first Transient Suppression Diode respectively be input into two of the input voltage
Incoming line is connected, and the plus earth of first Transient Suppression Diode；
First output pin of auxiliary power output end mouth negative pole and institute respectively with first Transient Suppression Diode
The first input end for stating chokes module is connected, the second output pin of the auxiliary power output end mouth and the chokes module
Second input is connected；
The two ends of second electric capacity are connected with the first input end and the second input of the chokes module respectively；
First outfan of the chokes module is connected with the first output pin of the bus power source output port, the chokes
Second outfan of module is connected with the second output pin of the bus power source output port；In the chokes module, first is defeated
Enter end to be connected with the first outfan, the second input is connected with the second outfan；
The negative pole of second Transient Suppression Diode is connected with the first output pin of the bus power source output port, described
The positive pole of the second Transient Suppression Diode is connected with the second output pin of the bus power source output port；
The chokes module, for defeated to the auxiliary power output end mouth by itself first input end and the second input
Go out first output voltage, exported to the bus power source output port by itself the first outfan and the second outfan
Second output voltage, to prevent interfering between first output voltage and second output voltage.
3. bus power source according to claim 2, it is characterised in that further include：Bus power source reset unit；
The bus power source reset unit is connected with the first outfan of the chokes module；
The bus power source reset unit, defeated by described second for according to outside triggering, controlling the chokes module stopping
Go out voltage and be transferred to the bus power source output port, and stopping for second output voltage being transferred to the bus power source
After the duration of output port reaches preset duration, control the chokes module and restart to be transferred to second output voltage
The bus power source output port.
4. bus power source according to claim 3, it is characterised in that
The bus power source reset unit includes：Reset delay chip, Operation switch, the first light emitting diode and relay；
The Operation switch is connected with the reset delay chip；The input of the reset delay chip and the accessory power supply
First output pin of output port is connected；
The positive pole of first light emitting diode is connected with the outfan of the reset delay chip, first light emitting diode
Negative pole be connected with the relay；
The normally-closed contact of the relay the first outfan and the bus power source output port respectively with the chokes module
The first output pin be connected, the normally opened contact of the relay respectively should with the first output of the bus power source output port
Hand over and the second output pin is connected；
The reset delay chip, for exporting high level signal from outfan after Operation switch closure, by described the
One light emitting diode is lighted, and disconnects the normally-closed contact of the relay, normally opened contact adhesive, so that the chokes module is stopped
Second output voltage is transferred to the bus power source output port only；And reach in the duration for exporting high level signal
After preset duration, low level signal is exported from outfan, first display lamp is extinguished, and touch the normally closed of the relay
Point adhesive, normally opened contact disconnects, so that the chokes module restarts for second output voltage to be transferred to the bus
Output port of power source.
5. bus power source according to claim 1, it is characterised in that further include：Output protection unit；
The output protection unit is connected with said supply unit；
The output protection unit, default for detecting whether the voltage and corresponding electric current of input said supply unit exceed
Threshold value, if the voltage of input said supply unit exceedes default threshold value, sends alarm and makes said supply unit stop passing
Defeated first output voltage and second output voltage；If the electric current corresponding with the voltage of input said supply unit
Exceed default threshold value, send alarm.
6. bus power source according to claim 5, it is characterised in that
The output protection unit includes：First operational amplifier, the second operational amplifier, the second light emitting diode, the 3rd
Optical diode and metal-oxide-semiconductor；
The in-phase input end of first operational amplifier is connected with default reference voltage, first operational amplifier anti-
It is connected to input with the first output pin on the auxiliary power output end mouth, the outfan of first operational amplifier
It is connected with the grid of the metal-oxide-semiconductor；
The negative pole of second light emitting diode is connected with the outfan of first operational amplifier, second light-emitting diodes
The positive pole of pipe is connected with the in-phase input end of first operational amplifier；
The drain electrode of the metal-oxide-semiconductor is connected with the second output pin on the auxiliary power output end mouth, the source electrode of the metal-oxide-semiconductor
It is grounded by first resistor；
The in-phase input end of second operational amplifier is connected with the source electrode of the metal-oxide-semiconductor, second operational amplifier
Reverse input end is connected with the default reference voltage, the outfan of second operational amplifier and the described 3rd luminous two
The positive pole of pole pipe is connected；
The minus earth of the 3rd light emitting diode；
First operational amplifier, the voltage for the first output pin on the auxiliary power output end mouth are more than together
During the reference voltage of phase input input, low level signal is exported, second light emitting diode is lighted, and is made the MOS
Pipe disconnects, so that the output loop of the auxiliary power output end mouth and the bus power source output port disconnects；
Second operational amplifier, for detecting that electric current flows through the voltage produced by the first resistor, when the voltage is more than
During the reference voltage of reverse input end input, high level signal is exported, the 3rd light emitting diode is lighted.
7. bus power source according to claim 1, it is characterised in that further include：Filter unit；
The filter unit includes：Electromagnetic interference filter circuit, current rectifying and wave filtering circuit, master power switch circuit, high-frequency isolation become
Depressor and secondary commutation filter circuit；
The input of the electromagnetic interference filter circuit is connected with the voltage source of outside, the output of the electromagnetic interference filter circuit
End is connected with the input of the current rectifying and wave filtering circuit；The outfan of the current rectifying and wave filtering circuit and the master power switch circuit
Input be connected；The outfan of the master power switch circuit is connected with the input of the high-frequency isolation transformer；Described
The outfan of high-frequency isolation transformer is connected with the input of the secondary commutation filter circuit；The secondary commutation filter circuit
Outfan be connected with said supply unit；
The electromagnetic interference filter circuit, for filtering to the High-frequency Interference in the input voltage, and by filtration after
The input voltage is transferred to the current rectifying and wave filtering circuit；
The current rectifying and wave filtering circuit, the input voltage of the form of communication for exporting the electromagnetic interference filter circuit turn
The input voltage of the more smooth DC form of waveform is changed to, and the input voltage of the DC form is transferred to the main work(
Rate on-off circuit；
The master power switch circuit, for being processed as high-frequency pulse voltage by the input voltage of the DC form, and by institute
State high-frequency pulse voltage and be transferred to the high-frequency isolation transformer；
The high-frequency isolation transformer, for carrying out at blood pressure lowering to the high-frequency pulse voltage of the master power switch circuit output
Reason, forms low-voltage high-frequency pulsating volage, and the low-voltage high-frequency pulsating volage is transferred to the secondary commutation filter circuit；
The secondary commutation filter circuit, for entering to the low-voltage high-frequency pulsating volage that the high-frequency isolation transformer is exported
The process of row rectifying and wave-filtering, to filter the high frequency ripple that the high-frequency isolation transformer is produced in blood pressure lowering processing procedure, forms low
The streamed input voltage of straightening, and the input voltage is transferred to said supply unit.
8. bus power source according to claim 7, it is characterised in that further include：Voltage regulation unit；
The voltage regulation unit includes：Voltage error detection circuit, photoelectrical coupler and pulse width modulation (PWM) control circuit；
The input of the voltage error detection circuit is connected with the secondary commutation filter circuit, the voltage error detection electricity
The outfan on road is connected with the input of the photoelectrical coupler；The outfan of the photoelectrical coupler and PWM control electricity
The first input end on road is connected；The outfan of the pwm control circuit is connected with the master power switch circuit；
The voltage error detects circuit, for the input voltage that export according to the secondary commutation filter circuit with preset
Reference voltage between difference, formed error correction signal；
The photoelectrical coupler, for isolating voltage error detection circuit, and by default ratio with the pwm control circuit
The error correction signal is transferred to the pwm control circuit by example；
The pwm control circuit, for the height according to the error correction signal to the master power switch circuit output
The pulsewidth of frequency pulsating volage is controlled, so that the high-frequency isolation transformer is constant to secondary commutation filter circuit output
The low-voltage high-frequency pulsating volage.
9. bus power source according to claim 8, it is characterised in that
Second input of the pwm control circuit is connected with the master power switch circuit,
The pwm control circuit, is further used for the magnitude of voltage of the high-frequency pulse voltage in the master power switch circuit output
Stop the output high-frequency pulse voltage more than the active switch circuit after default reference value, is controlled；
Or,
The pwm control circuit, is further used for the temperature for detecting designated area, when the temperature of the designated area is more than default
Threshold value after, control the active switch circuit and stop the output high-frequency pulse voltage.
10. a kind of electric power system, it is characterised in that include：Voltage source, the first electrical equipment, the second electrical equipment and right will
Seek arbitrary described bus power source in 1 to 9；
The voltage source, for transmitting the input voltage to the bus power source；
First electrical equipment, for receiving first output voltage of the bus power source output；
Second electrical equipment, for receiving second output voltage of the bus power source output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620945626.4U CN206023352U (en) | 2016-08-25 | 2016-08-25 | A kind of bus power source and electric power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620945626.4U CN206023352U (en) | 2016-08-25 | 2016-08-25 | A kind of bus power source and electric power system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206023352U true CN206023352U (en) | 2017-03-15 |
Family
ID=58250942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620945626.4U Withdrawn - After Issue CN206023352U (en) | 2016-08-25 | 2016-08-25 | A kind of bus power source and electric power system |
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| Country | Link |
|---|---|
| CN (1) | CN206023352U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106160183A (en) * | 2016-08-25 | 2016-11-23 | 意诺科技有限公司 | A kind of bus power source and electric power system |
-
2016
- 2016-08-25 CN CN201620945626.4U patent/CN206023352U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106160183A (en) * | 2016-08-25 | 2016-11-23 | 意诺科技有限公司 | A kind of bus power source and electric power system |
| CN106160183B (en) * | 2016-08-25 | 2018-07-24 | 意诺科技有限公司 | A kind of bus power source and power supply system |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170315 Effective date of abandoning: 20180724 |