CN208142834U - The circuit structure of ship 220V single phase ac Intelligent power distribution device - Google Patents
The circuit structure of ship 220V single phase ac Intelligent power distribution device Download PDFInfo
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- CN208142834U CN208142834U CN201820121371.9U CN201820121371U CN208142834U CN 208142834 U CN208142834 U CN 208142834U CN 201820121371 U CN201820121371 U CN 201820121371U CN 208142834 U CN208142834 U CN 208142834U
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Abstract
The utility model discloses a kind of ship circuit structures of 220V single phase ac Intelligent power distribution device, mainly it is made of power switch, buffer circuit, voltage and current detecting conditioning circuit, driving circuit etc., it being capable of the operating conditions such as the short circuit of fast resolution load-side, impact and overload, when short circuit occurs for load-side, Effect of Short Circuit can be eliminated within the Microsecond grade time, when heavy current impact occurs in load-side, equally load current can inhibit until impact disappears within the Microsecond grade time.In addition, the power distribution equipment can also carry out real-time monitoring to the operating status of corresponding distribution branch, and operating parameter, fault message etc. are transmitted by CAN network superior monitoring system, while receiving the switch command of higher level's monitoring system transmission.The power distribution equipment have many advantages, such as it is contactless, without electric arc, noiseless, response it is fast, it can be achieved that ship 220V distribution system comprehensive intelligence.
Description
Technical field
The utility model belongs to ship intelligent power distribution field, and in particular to ship 220V single phase ac Intelligent power distribution device
Circuit structure, hardware circuit and control strategy side of especially a kind of ship with 220V DC intelligent power distribution equipment system
Method.
Background technique
Intelligent power distribution device is that the solid-state of the conversion function for integrating relay and the circuit protection function of breaker is matched
Electric installation, have it is contactless, without electric arc, noiseless, response is fast, electromagnetic interference is small, the service life is long, high reliablity, to load characteristic
The advantages that intelligence is distinguished and is convenient for computer long-distance control.
Ship domain still mainly carries out distribution, this routine using traditional devices such as relay, breaker, fuses at present
The advantages of distribution system is technology maturation, device the operation is stable, the disadvantage is that quick protection when cannot achieve short circuit, impact and bearing
The automatic management of load, by taking gG type fuse-link as an example, only when flowing through close to ten times of rated current, fuse-link just has millisecond
The reaction of grade, and after causing fuse-link to fuse because of short circuit, it is necessary to fuse-link is replaced manually, considerably increases centralized power supply system
The lower management difficulty there are when multichannel loading, thus it is imperative using the intelligent distribution system based on Intelligent power distribution device.By
In the diversification of branch circuit load size, position and cabling cable on real ship, development had excellent performance, direct current intelligence stable and reliable in work
Energy power distribution equipment is the core place for establishing intelligent distribution system.
Utility model content
For the defects in the prior art, the purpose of the utility model is to provide a kind of ship 220V single phase ac intelligence
The circuit structure of power distribution equipment.
According to a kind of circuit structure of ship 220V single phase ac Intelligent power distribution device provided by the utility model, including
Main circuit, main detection circuit；
The main circuit includes：First power switch circuit, the first buffer circuit, the second power switch circuit, second are delayed
Rush circuit, 220V ac power input end, 220V ac power output；
The main detection circuit includes：Sampling resistor R1；
First power switch circuit includes：Diode D1, field effect transistor T1；
Second power switch circuit includes：Diode D4, field effect transistor T2；
220V ac power input end is separately connected the drain electrode of the field effect transistor T1, cathode of diode D1, first slow
Rush one end of circuit；
The source electrode of field effect transistor T1, the anode of diode D1, the first buffer circuit the other end, be respectively connected to adopt
One end of sample resistance R1；
The other end of sampling resistor R1 is separately connected the source electrode of the field effect transistor T2, anode of diode D2, second slow
Rush one end of circuit；
The drain electrode of field effect transistor T2, the cathode of diode D1, the second buffer circuit the other end, be respectively connected to
220V ac power output.
Preferably, first buffer circuit includes：Capacitor C1, capacitor C2, capacitor C3, diode D2, resistance R2；
One end of capacitor C1 constitutes one end of first buffer circuit；
The other end of capacitor C1 constitutes the other end of first buffer circuit；
220V ac power input end be separately connected one end of capacitor C1, one end of capacitor C2, capacitor C3 one end；
The other end of capacitor C2 is separately connected one end of the anode of diode D2, resistance R2；The cathode of diode D2 connects
One end of sampling resistor R1；
One end of the other end connection resistance R2 of capacitor C3；One end of the other end connection sampling resistor R1 of resistance R2；
Second buffer circuit includes：Capacitor C4, capacitor C5, capacitor C6, diode D3, resistance R3；
One end of capacitor C4 constitutes one end of second buffer circuit；
The other end of capacitor C4 constitutes the other end of second buffer circuit；
The other end of sampling resistor R1 be separately connected one end of capacitor C4, one end of capacitor C5, capacitor C6 one end；
The other end of capacitor C5 is separately connected one end of the anode of diode D3, resistance R3；The cathode of diode D3 connects
220V ac power output；
One end of the other end connection resistance R3 of capacitor C6；The other end of resistance R3 connects 220V ac power output.
Preferably, field effect transistor T1, field effect transistor T2 use metal-oxide half field effect transistor；
Diode D2, diode D3 use fast recovery diode；
Capacitor C1, capacitor C2, capacitor C3, capacitor C4, capacitor C5, capacitor C6 respectively constitute Absorption Capacitance；
Resistance R2, resistance R3 constitute absorption resistance；
Sampling resistor R1 uses noninductive resistance.
Preferably, the main detection circuit includes：Current detecting conditioning circuit, voltage detecting conditioning circuit；
The other end of the input terminal connection sampling resistor R1 of the current detecting conditioning circuit；
The input terminal of the voltage detecting conditioning circuit connects 220V ac power input end；
The output end of driving circuit connects the grid of the grid of field effect transistor T1, field effect transistor T2.
Preferably, the governor circuit includes control circuit；
The output end of the current detecting conditioning circuit, the output end of voltage detecting conditioning circuit are separately connected control circuit
Different input terminals；
The input terminal of the output end connection driving circuit of control circuit.
Compared with prior art, the utility model has following beneficial effect：
Ship provided by the utility model is that a kind of circuit hardware is flat with the circuit structure that 220V exchanges Intelligent power distribution device
Platform, structurally reasonable, easy to maintain, device is chosen reasonable.In the further improved technical solution based on the utility model
For substituting the conventional electrical distributions device such as relay, breaker, fuse, to realize the distribution intelligence of ship 220V direct-flow distribution system
It can change and load automatic management, further, its job stability and reliability be demonstrated by experimental prototype.The intelligence is matched
Electric installation can not only realize the reliable distribution under distribution branch normal condition, and can intelligently distinguish heavy current impact, short circuit, mistake
The load conditions such as load simultaneously carry out corresponding operating, and the working condition and fault message of place distribution branch can be connect by CAN communication
It is uploaded when cause for gossip, and can receive telecommand and carry out the on-off line operation of distribution branch, had compared to traditional machine electric-type distribution component
Clear superiority, therefore have broad application prospects in ship domain.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other spies of the utility model
Sign, objects and advantages will become more apparent upon：
Fig. 1 is system locating for circuit structure of the ship provided by the utility model with 220V single phase ac Intelligent power distribution device
Functional block diagram；
Fig. 2 is the main circuit of the ship provided by the utility model circuit structure of 220V single phase ac Intelligent power distribution device
Topology；
Fig. 3 is I2T inverse-time overcurrent protection curve interface；
Test waveform interface when Fig. 4 is load short circuits；
Fig. 5 is test waveform interface when heavy current impact occurs in load-side；
Test waveform interface when Fig. 6 is 125% overload.
Specific embodiment
The utility model is described in detail combined with specific embodiments below.Following embodiment will be helpful to this field
Technical staff further understands the utility model, but does not limit the utility model in any form.It should be pointed out that ability
For the those of ordinary skill in domain, without departing from the concept of the premise utility, several changes and improvements can also be made.
These are all within the protection scope of the present invention.
As shown in Figure 1 and Figure 2, according to a kind of ship 220V single phase ac Intelligent power distribution device provided by the utility model
Circuit structure, including main circuit, main detection circuit；The main circuit includes：First power switch circuit, the first buffering electricity
Road, the second power switch circuit, the second buffer circuit, 220V ac power input end, 220V ac power output；The master
Detection circuit includes：Sampling resistor R1；First power switch circuit includes：Diode D1, field effect transistor T1；It is described
Second power switch circuit includes：Diode D4, field effect transistor T2；220V ac power input end is separately connected field-effect
The drain electrode of transistor T1, the cathode of diode D1, the first buffer circuit one end；Source electrode, the diode of field effect transistor T1
The other end of the anode of D1, the first buffer circuit is respectively connected to one end of sampling resistor R1；The other end of sampling resistor R1 point
Not Lian Jie the source electrode of field effect transistor T2, the anode of diode D2, the second buffer circuit one end；Field effect transistor T2's
Drain electrode, the cathode of diode D1, the second buffer circuit the other end, be respectively connected to 220V ac power output.
First buffer circuit includes：Capacitor C1, capacitor C2, capacitor C3, diode D2, resistance R2；The one of capacitor C1
End constitutes one end of first buffer circuit；The other end of capacitor C1 constitutes the other end of first buffer circuit；220V
Ac power input end be separately connected one end of capacitor C1, one end of capacitor C2, capacitor C3 one end；The other end of capacitor C2 point
Not Lian Jie the anode of diode D2, resistance R2 one end；One end of the cathode connection sampling resistor R1 of diode D2；Capacitor C3's
One end of other end connection resistance R2；One end of the other end connection sampling resistor R1 of resistance R2；
Second buffer circuit includes：Capacitor C4, capacitor C5, capacitor C6, diode D3, resistance R3；The one of capacitor C4
End constitutes one end of second buffer circuit；The other end of capacitor C4 constitutes the other end of second buffer circuit；Sampling
The other end of resistance R1 be separately connected one end of capacitor C4, one end of capacitor C5, capacitor C6 one end；The other end of capacitor C5 point
Not Lian Jie the anode of diode D3, resistance R3 one end；The cathode of diode D3 connects 220V ac power output；Capacitor C6
The other end connection resistance R3 one end；The other end of resistance R3 connects 220V ac power output.
Field effect transistor T1, field effect transistor T2 use metal-oxide half field effect transistor；Diode D2, diode D3 are adopted
Use fast recovery diode；Capacitor C1, capacitor C2, capacitor C3, capacitor C4, capacitor C5, capacitor C6 respectively constitute Absorption Capacitance；Resistance
R2, resistance R3 constitute absorption resistance；Sampling resistor R1 uses noninductive resistance.
The main detection circuit includes：Current detecting conditioning circuit, voltage detecting conditioning circuit；The current detecting conditioning
The other end of the input terminal connection sampling resistor R1 of circuit；The input terminal of the voltage detecting conditioning circuit connects 220V alternating current
Source input terminal；The output end of driving circuit connects the grid of the grid of field effect transistor T1, field effect transistor T2.
The governor circuit includes control circuit；Output end, the voltage detecting conditioning electricity of the current detecting conditioning circuit
The output end on road is separately connected the different input terminals of control circuit；The input terminal of the output end connection driving circuit of control circuit.
The technical solution obtained based on the further improvement that the utility model is hardware platform is described in detail below.
The improvement project functional block diagram of Intelligent power distribution device provided by the utility model is as shown in Figure 1, its main circuit topology such as Fig. 2 institute
Show, the digital control circuit in governor circuit is used based on DSP (Digital Signal Processing, at digital signal
Reason) and CPLD (Complex Programmable Logic Device, Complex Programmable Logic Devices) digital control electricity
Road, wherein CPLD is mainly used for logic judgment.
According to a kind of circuit structure of ship 220V single phase ac Intelligent power distribution device provided by the utility model into
In the improved technical solution of one step, including main circuit, main detection circuit, governor circuit, driving circuit；The main circuit, provides
The two supplying channels for being mutually redundant of main channel and alternate channel, distribute to successive load for 220V single phase alternating current power supply, when
When there is open-circuit fault in main channel, alternate channel starting, to ensure the power supply continuity loaded；The main detection circuit, will adopt
Collect the load voltage from the main circuit, load current feedback to governor circuit；The governor circuit, according to the load voltage
And load current, judge distribution branch current working status, and conditioned signal is issued extremely according to distribution branch current working status
Driving circuit；Driving circuit, according to the conditioned signal, using in driving signal control main circuit the first power switch, the
Two power switch are acted.
The main circuit includes：First power switch circuit, the first buffer circuit, the second power switch circuit, second are delayed
Rush circuit, 220V ac power input end, 220V ac power output；The main detection circuit includes：Sampling resistor R1；Institute
Stating the first power switch circuit includes：Diode D1, field effect transistor T1；Second power switch circuit includes：Two poles
Pipe D4, field effect transistor T2；220V ac power input end is separately connected the drain electrode of field effect transistor T1, diode D1
One end of cathode, the first buffer circuit；The source electrode of field effect transistor T1, the anode of diode D1, the first buffer circuit it is another
One end is respectively connected to one end of sampling resistor R1；The other end of sampling resistor R1 is separately connected the source of field effect transistor T2
Pole, the anode of diode D2, the second buffer circuit one end；The drain electrode of field effect transistor T2, the cathode of diode D1, second
The other end of buffer circuit is respectively connected to 220V ac power output.
First buffer circuit includes：Capacitor C1, capacitor C2, capacitor C3, diode D2, resistance R2；The one of capacitor C1
End constitutes one end of first buffer circuit；The other end of capacitor C1 constitutes the other end of first buffer circuit；220V
Ac power input end be separately connected one end of capacitor C1, one end of capacitor C2, capacitor C3 one end；The other end of capacitor C2 point
Not Lian Jie the anode of diode D2, resistance R2 one end；One end of the cathode connection sampling resistor R1 of diode D2；Capacitor C3's
One end of other end connection resistance R2；One end of the other end connection sampling resistor R1 of resistance R2；
Second buffer circuit includes：Capacitor C4, capacitor C5, capacitor C6, diode D3, resistance R3；The one of capacitor C4
End constitutes one end of second buffer circuit；The other end of capacitor C4 constitutes the other end of second buffer circuit；Sampling
The other end of resistance R1 be separately connected one end of capacitor C4, one end of capacitor C5, capacitor C6 one end；The other end of capacitor C5 point
Not Lian Jie the anode of diode D3, resistance R3 one end；The cathode of diode D3 connects 220V ac power output；Capacitor C6
The other end connection resistance R3 one end；The other end of resistance R3 connects 220V ac power output.
Field effect transistor T1, field effect transistor T2 use metal-oxide half field effect transistor；Diode D2, diode D3 are adopted
Use fast recovery diode；Capacitor C1, capacitor C2, capacitor C3, capacitor C4, capacitor C5, capacitor C6 respectively constitute Absorption Capacitance；Resistance
R2, resistance R3 constitute absorption resistance；Sampling resistor R1 uses noninductive resistance.
The main detection circuit includes：Current detecting conditioning circuit, voltage detecting conditioning circuit；The current detecting conditioning
The other end of the input terminal connection sampling resistor R1 of circuit；The input terminal of the voltage detecting conditioning circuit connects 220V alternating current
Source input terminal；The output end of driving circuit connects the grid of the grid of field effect transistor T1, field effect transistor T2.
The governor circuit includes control circuit；Output end, the voltage detecting conditioning electricity of the current detecting conditioning circuit
The output end on road is separately connected the different input terminals of control circuit；The input terminal of the output end connection driving circuit of control circuit.
The control circuit is the digital control circuit based on DSP and CPLD, using high frequency chopping control strategy；The control
The load current that load voltage that circuit processed is detected according to voltage detecting conditioning circuit, current detecting conditioning circuit detect,
Carry out the logic distinguishing of load overload, impact, short-circuit condition.
The high frequency chopping control strategy has both 1.4 times of rated current overcurrent protection function below and 1.4 times of specified electricity
Stream~current protection threshold value Ilimit_onInverse-time overcurrent protection function, wherein current protection threshold value Ilimit_onGreater than 1.4 times
Rated current.
Explanation mainly is specifically addressed in terms of main circuit structure and control strategy method two below.
Main circuit structure：
1, power switch
Power switch especially electron electric power power switch, power switch are used to carry out on-off line operation to distribution branch.
When heavy current impact occurs in load-side, Intelligent power distribution device will quickly enter current-limit mode, until dash current
It disappears, during this period, power switch will bear high-power in short-term.
Equally, when short circuit occurs for load-side, Intelligent power distribution device will quickly enter current-limit mode, judge fault type simultaneously
It is protected, during this period, power switch is also high-power in short-term by receiving, thus because instantaneous heat history leads to temperature rise, therefore function
Rate switch is using low conduction impedance, MOSFET (metal-oxide half field effect transistor, the Metal-Oxide- of low instantaneous thermal resistance
Semiconductor Field-Effect Transistor), junction temperature caused by instantaneous temperature need to be less than its maximum and allow knot
Temperature；
2, buffer circuit
Buffer circuit is mainly by absorption resistance, Absorption Capacitance and fast recovery diode (FRD, Fast Recovery
Diode it) constitutes, is mainly used for di/dt, dv/dt caused by limiting circuitry parasitic parameter, to avoid damage power switch；Wherein,
I indicates that electric current, v indicate that voltage, t indicate the time；
3, sampling resistor
It selects noninductive resistance (non-inductance resistor), for acquiring load current and feeding back to control electricity
Road.
Control strategy method：
Voltage detecting conditioning circuit detects load voltage, load voltage is fed back to governor circuit；
Current detecting conditioning circuit detects load current, by load current feedback to governor circuit；
Governor circuit is sentenced for the digital control circuit based on DSP and CPLD according to the load voltage and load current
Disconnected distribution branch current working status, and conditioned signal is issued to driving circuit according to distribution branch current working status；
Driving circuit is acted according to the conditioned signal using driving signal control power switch.
Wherein, when load voltage, load current are normal, power switch normally.
It sets load current and protects threshold value Ilimit_on, such as Ilimit_onFor 9 times of rated current, depending on load characteristic.
The high frequency chopping control strategy is specially：
When load current is greater than 1.1 times of rated current and is less than or equal to 1.25 times of rated current, delay overload is taken to protect
Shield measure, be delayed 60min after block driving signal；
When load current is greater than 1.25 times of rated current and is less than or equal to 1.4 times of rated current, delay overload is taken to protect
Shield measure, be delayed 3min after block driving signal；
When load current is greater than 1.4 times of rated current and to be less than or equal to load current protection threshold value Ilimit_onWhen, it takes
Driving signal is blocked in inverse-time overcurrent protection measure；
Threshold value I is protected when load current is greater than load currentlimit_onWhen, that is, think that rush of current or short occurs in load-side
Road then blocks the driving signal of power switch if short circuit, the current limliting to power switch is then released if rush of current.
Preferably, the control circuit is realized corresponding by the first power switch, the second power switch in main circuit
Protection, and netted by CAN and upload the working condition of distribution branch in real time and receive the switch order of higher level's monitoring system.
Digital control circuit carries out information exchange using CAN communication interface and higher level's monitoring system, uploads distribution branch in real time
Road current working status and fault message, while the on-off of control instruction remote distribution branch is issued by higher level's monitoring system,
Realize load intelligent management.Wherein, the reset of the remote control after being equally applicable to trouble shooting is opened in remote control.
As previously mentioned, when distribution branch is in normal condition, Intelligent power distribution device normally；When load current is
When 1.1 times of rated current~1.25 times rated current, delay overload protection measures are taken, block driving signal after the 60min that is delayed；
When load current is 1.25 times of rated current~1.4 times rated current, delay overload protection measures are still taken, are delayed after 3min
Block driving signal；When load current is 1.4 times of rated current~Ilimit_onWhen, take I2T anti-delay overcurrent protection measure；Its
In, Ilimit_on9 times of rated current are indicated, depending on load characteristic.
Fig. 3 show I2T inverse-time overcurrent protection curve, in inverse-time overcurrent protection curve, the tripping upper limit, which is located at, is jumped
The top of lock lower limit, it is known that, which is divided into three regions for coordinate plane, section of not tripping respectively, can trip section and
Must trip section, wherein the section that can trip is defined by tripping lower limit and tripping two curves of the upper limit.Since ship power distribution system is straight
The overcurrent protection characteristic for flowing Intelligent power distribution device must be matched with the mistake thermal characteristics of conducting wire, load, therefore the utility model institute
Intelligent power distribution device is stated using the extreme inverse-time overcurrent protection characteristic in IEC 255-3 (1989-05).Its normal equation is
It can be obtained through discretization
T is actuation time, and I is fault current, and Ie is current reference value, and I (n) is the current reference value point after discretization
Amount, M are the quantity of the current reference value component after discretization.Parameter B value takes 1.4 herein, and parameter A value can be according to actual use need
It asks and is chosen, Δ T is fixed time interval.Inverse-time overcurrent protection is realized by dsp program, when the accumulated value on the equation left side in program
Greater than the right threshold value when, block driving signal, turn off Intelligent power distribution device main circuit in power switch.
Due to the complexity of real ship load, carries out load short circuits and accurately distinguishing for heavy current impact is Intelligent power distribution device
Design difficulty.Set load current threshold Ilimit_on(9 times of rated current, depending on load characteristic) and time threshold
Tlimit_on, when detect load current be greater than Ilimit_onWhen, that is, think that heavy current impact or short circuit occurs in load-side, adopts rapidly
Change distribution branch equivalent impedance control Intelligent power distribution device with high frequency chopping technology and enter current-limit mode, while DSP controls journey
Sequence starts timing, and real-time detection load voltage, when timing duration is greater than Tlimit_onWhen, if load voltage is greater than zero and has rising
Trend, and load current has recovery trend, releases current limliting, if load voltage is always zero, and load current is without the trend of falling after rise, then
Determine that short circuit occurs in load, blocks driving signal.
By Fig. 4~Fig. 6 it is found that the control strategy formulated using the utility model, it is short can accurately and reliably to distinguish load
The operating conditions such as road, heavy current impact and overload, meet practical application request.
It is to be appreciated that Fig. 1, Fig. 2 and text have fully disclosed the utility model, Fig. 3 to Fig. 6 is for more clear
The advantages of understanding the utility model of Chu, does not influence sufficiently open.
Specific embodiment of the utility model is described above.It is to be appreciated that the utility model not office
It is limited to above-mentioned particular implementation, those skilled in the art can make a variety of changes or modify within the scope of the claims,
This has no effect on the substantive content of the utility model.In the absence of conflict, the spy in embodiments herein and embodiment
Sign can be arbitrarily combined with each other.
Claims (5)
1. a kind of ship circuit structure of 220V single phase ac Intelligent power distribution device, which is characterized in that including main circuit, main inspection
Slowdown monitoring circuit；
The main circuit includes：First power switch circuit, the first buffer circuit, the second power switch circuit, the second buffering electricity
Road, 220V ac power input end, 220V ac power output；
The main detection circuit includes：Sampling resistor R1；
First power switch circuit includes：Diode D1, field effect transistor T1；
Second power switch circuit includes：Diode D4, field effect transistor T2；
220V ac power input end is separately connected the drain electrode of field effect transistor T1, the cathode of diode D1, the first buffering electricity
The one end on road；
The source electrode of field effect transistor T1, the anode of diode D1, the first buffer circuit the other end, be respectively connected to sampling electricity
Hinder one end of R1；
The other end of sampling resistor R1 is separately connected the source electrode of field effect transistor T2, the anode of diode D2, the second buffering electricity
The one end on road；
The drain electrode of field effect transistor T2, the cathode of diode D1, the second buffer circuit the other end, be respectively connected to 220V friendship
Galvanic electricity source output terminal.
2. the ship according to claim 1 circuit structure of 220V single phase ac Intelligent power distribution device, which is characterized in that
First buffer circuit includes：Capacitor C1, capacitor C2, capacitor C3, diode D2, resistance R2；
One end of capacitor C1 constitutes one end of first buffer circuit；
The other end of capacitor C1 constitutes the other end of first buffer circuit；
220V ac power input end be separately connected one end of capacitor C1, one end of capacitor C2, capacitor C3 one end；
The other end of capacitor C2 is separately connected one end of the anode of diode D2, resistance R2；The cathode of diode D2 connects sampling
One end of resistance R1；
One end of the other end connection resistance R2 of capacitor C3；One end of the other end connection sampling resistor R1 of resistance R2；
Second buffer circuit includes：Capacitor C4, capacitor C5, capacitor C6, diode D3, resistance R3；
One end of capacitor C4 constitutes one end of second buffer circuit；
The other end of capacitor C4 constitutes the other end of second buffer circuit；
The other end of sampling resistor R1 be separately connected one end of capacitor C4, one end of capacitor C5, capacitor C6 one end；
The other end of capacitor C5 is separately connected one end of the anode of diode D3, resistance R3；The cathode of diode D3 connects 220V
Ac power output；
One end of the other end connection resistance R3 of capacitor C6；The other end of resistance R3 connects 220V ac power output.
3. the ship according to claim 2 circuit structure of 220V single phase ac Intelligent power distribution device, which is characterized in that
Field effect transistor T1, field effect transistor T2 use metal-oxide half field effect transistor；
Diode D2, diode D3 use fast recovery diode；
Capacitor C1, capacitor C2, capacitor C3, capacitor C4, capacitor C5, capacitor C6 respectively constitute Absorption Capacitance；
Resistance R2, resistance R3 constitute absorption resistance；
Sampling resistor R1 uses noninductive resistance.
4. the ship according to claim 1 circuit structure of 220V single phase ac Intelligent power distribution device, which is characterized in that
The main detection circuit includes：Current detecting conditioning circuit, voltage detecting conditioning circuit；
The other end of the input terminal connection sampling resistor R1 of the current detecting conditioning circuit；
The input terminal of the voltage detecting conditioning circuit connects 220V ac power input end；
The output end of driving circuit connects the grid of the grid of field effect transistor T1, field effect transistor T2.
5. the ship according to claim 4 circuit structure of 220V single phase ac Intelligent power distribution device, which is characterized in that
Including governor circuit, the governor circuit includes control circuit；
The output end of the current detecting conditioning circuit, the output end of voltage detecting conditioning circuit are separately connected control circuit not
Same input terminal；
The input terminal of the output end connection driving circuit of control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820121371.9U CN208142834U (en) | 2018-01-24 | 2018-01-24 | The circuit structure of ship 220V single phase ac Intelligent power distribution device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820121371.9U CN208142834U (en) | 2018-01-24 | 2018-01-24 | The circuit structure of ship 220V single phase ac Intelligent power distribution device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208142834U true CN208142834U (en) | 2018-11-23 |
Family
ID=64285268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820121371.9U Expired - Fee Related CN208142834U (en) | 2018-01-24 | 2018-01-24 | The circuit structure of ship 220V single phase ac Intelligent power distribution device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208142834U (en) |
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2018
- 2018-01-24 CN CN201820121371.9U patent/CN208142834U/en not_active Expired - Fee Related
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