CN106208228B - A kind of power-supply system - Google Patents
A kind of power-supply system Download PDFInfo
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- CN106208228B CN106208228B CN201610662224.8A CN201610662224A CN106208228B CN 106208228 B CN106208228 B CN 106208228B CN 201610662224 A CN201610662224 A CN 201610662224A CN 106208228 B CN106208228 B CN 106208228B
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- voltage
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/10—Control circuit supply, e.g. means for supplying power to the control circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/40—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries adapted for charging from various sources, e.g. AC, DC or multivoltage
Abstract
The present invention discloses a kind of power-supply system, for pre-processing circuit, the first DC output circuit, the second DC output circuit and control circuit for the power supply of Beidou command type subscriber computer, including input；Input pretreatment circuit is directly connected to external Vehicular direct-current power supply, or connects external ac power source by power supply adaptor, obtains input power；Control circuit control power-supply system opens or closes；When power-supply system is opened, within a preset range whether control circuit samples the voltage of input power, judge it；And when within a preset range, the voltage of input power is converted into busbar voltage by control input pretreatment circuit, and controls the first DC output circuit and busbar voltage is converted into being used for the operating voltage for load supplying respectively by the second DC output circuit.Power-supply system provided by the invention can choose a variety of external power supply power supplies, uses Beidou command type subscriber computer in a variety of contexts, has the ability for rapidly adapting to environmental change.
Description
Technical field
The present invention relates to navigation equipment technical fields, and in particular to a kind of power supply system for the power supply of Beidou command type subscriber computer
System.
Background technique
Beidou command type subscriber computer is to pass through Big Dipper satellite positioning and navigation system convenient for higher level commanding agency, to its subordinate
The Beidou subscriber machine product that user commands, monitors and develops.Beidou command type subscriber computer is in addition to plain edition subscriber computer
Institute it is functional outer, the positioning for receiving its subordinate's subscriber computer, the communication information can also be supervised, and commander's letter can be broadcast to subordinate's subscriber computer
Breath.
Beidou command type subscriber computer can be used in a variety of occasions such as fixed command post, mobile command institute, shelters, but existing
The power-supply system of some Beidou command type subscriber computers is designed using single channel input power, can only use a certain single external electrical
Source power supply, bad adaptability cannot rapidly adapt to the change of use environment.
Summary of the invention
The present invention provides a kind of power-supply systems, keep Beidou command type subscriber computer a variety of outer according to use environment selection
Portion's power supply power supply obtains input power, solves the problems, such as that existing power-supply system cannot rapidly adapt to the variation of use environment.
The present invention provides a kind of power-supply systems, for powering for Beidou command type subscriber computer, comprising: input pretreatment electricity
Road, the first DC output circuit, the second DC output circuit and control circuit；
The input pre-processes circuit, connects for being directly connected to external Vehicular direct-current power supply, or by power supply adaptor
External ac power source obtains input power；
The control circuit, for controlling the power-supply system and opening or closing according to the enable signal received；
When the power-supply system is opened, the control circuit is also used to the input power to the input pretreatment circuit
Voltage sampled, whether within a preset range judge the voltage of the input power；And the electricity when the input power
When pressing within a preset range, controls the input pretreatment circuit and the voltage of the input power is converted into stable bus electricity
Pressure, and control first DC output circuit and the second DC output circuit respectively by the busbar voltage be converted into being used for for
The operating voltage of load supplying.
Optionally, the power-supply system further includes internal battery and management of charging and discharging circuit；The control circuit is also used to
The voltage of the internal battery is sampled, the state of charge of the internal battery is obtained；
When power-supply system opening, and the voltage of the input power of the input pretreatment circuit is within a preset range
When, if the internal battery not enough power supply, the control circuit controls the management of charging and discharging circuit using the bus electricity
Pressure is that the internal battery charges；
When power-supply system opening, and the voltage of the input power of the input pretreatment circuit is not in preset range
When interior, the control circuit is discharged by internal battery described in the management of charging and discharging circuit control provides busbar voltage.
The beneficial effects of the present invention are: working as Beidou command type subscriber computer in mobile command institute in use, the power-supply system can
To be directly connected to the vehicle power supply of 12V or 24V；When Beidou command type subscriber computer is fixing command post in use, the power-supply system
220V AC power source can be connected by power supply adaptor, make Beidou by selecting a variety of external power supply power supplies to obtain input power
Command type subscriber computer has the ability for rapidly adapting to power supply environmental change.Power-supply system provided in an embodiment of the present invention has adaptive
Input power characteristic is answered, the power supply electricity of 6V~32V wide scope is adapted to.
In a preferred embodiment, which includes internal battery, by the voltage sample acquisition to internal battery
The state of charge of battery is set, and exports the electric quantity signal of internal battery to host computer.When the power-supply system is using external power supply just
When often work and internal battery not enough power supply, charge for internal battery；It is interior when external power supply is under-voltage, over-voltage or when non-transformer
It sets battery discharge and busbar voltage is provided, the output of the first DC output circuit and the second DC output circuit is maintained, so that Beidou
Command type subscriber computer can use internal battery power supply, work in the environment of unsuitable external power supply.
Detailed description of the invention
Fig. 1 is the functional block diagram of power-supply system provided by one embodiment of the present invention；
Fig. 2 is the circuit diagram of input pretreatment circuit in power-supply system provided by one embodiment of the present invention；
Fig. 3 is the circuit diagram of control circuit in power-supply system provided by one embodiment of the present invention；
Fig. 4 is the circuit diagram of management of charging and discharging circuit in power-supply system provided by one embodiment of the present invention；
Fig. 5 is the circuit diagram of the first DC output circuit in power-supply system provided by one embodiment of the present invention；
Fig. 6 is the circuit diagram of the second DC output circuit in power-supply system provided by one embodiment of the present invention.
Specific embodiment
Design concept of the invention is: for the diversity of Beidou command type subscriber computer use environment, designing one kind can be fitted
The power-supply system of wide scope supply voltage is answered, can not only be directly connected to Vehicular direct-current power supply, but also can connect by power supply adaptor
AC power source, and internal battery is had, when external power supply be in over-voltage, under-voltage or power free abnormal condition, utilization
Internal battery power supply uses Beidou command type subscriber computer in a variety of occasions such as fixed command post, mobile command institutes, can
Rapidly adapt to the variation of environment.
Fig. 1 is the functional block diagram of power-supply system provided by one embodiment of the present invention, as shown in Figure 1, the present embodiment provides
Power-supply system include input pretreatment circuit 110, the first DC output circuit 130, the second DC output circuit 140 and control
Circuit 120.
Power-supply system provided in this embodiment has adaptive input power supply characteristic, and input pretreatment circuit 110 can fit
The power supply voltage range for answering 6V~32V, when Beidou command type subscriber computer pre-processes circuit in use, inputting in mobile command institute
120 can be directly connected to Vehicular direct-current power supply, such as the vehicle power supply of 12V or 24V, obtain input power；When Beidou command type is used
Family machine is in fixed command post in use, input pretreatment circuit 120 can connect 220V AC power source, electricity by power supply adaptor
220V alternating current is converted into the direct current of 19V by source adapter, to obtain input power, rapidly adapts to supply to improve equipment
The ability of electrical environment variation.
Control circuit 120 controls power-supply system and opens or closes according to the enable signal of the high/low level received, can
Control signal is sent to control circuit 120 in a manner of through remote control or button etc., to realize the control to switches of power system machine.
When control circuit 120 receives corresponding enable signal, controls power-supply system opening, control circuit 120 is right
The voltage for the input power that input pretreatment circuit 110 obtains is sampled, and whether within a preset range to judge the voltage, such as
Judge the voltage whether in 6V between 32V.When the voltage within a preset range when, illustrate input pretreatment circuit 110 connect
External power supply it is working properly, the voltage of input power is converted into 32V by the control input pretreatment circuit 120 of control circuit 120
Busbar voltage Vbus, and control the first DC output circuit 130 and the second DC output circuit 140 respectively by busbar voltage
Vbus is converted into for the operating voltage for load supplying.The busbar voltage Vbus of 32V is depressured by the first DC output circuit 130
It is the governor circuit power supply in Beidou command type subscriber computer at the voltage of 5V；First DC output circuit 140 is by the bus of 32V
Voltage Vbus is depressured the voltage at 28V, is the power amplifier power supply in Beidou command type subscriber computer.When the voltage is not in default model
When enclosing interior, the external power supply for illustrating that input pretreatment circuit 110 connects is abnormal, it may be possible to be not connected to power supply, it is also possible to
It is overtension, the control input pretreatment circuit of control circuit 120 no longer obtains input power from external power supply, to prevent over-voltage
It is under-voltage that power supply is damaged.
Preferably, power-supply system provided in an embodiment of the present invention further includes internal battery 160 and management of charging and discharging circuit
150.Control circuit 120 samples the voltage of internal battery, obtains the state of charge of internal battery 160.
It is when the voltage of the input power of pretreatment circuit 110 is opened and inputted to power-supply system within a preset range, i.e., outer
When portion's power supply works normally, if control circuit 120 detects that 160 not enough power supply of internal battery, control circuit 120 control charge and discharge
It is the charging of internal battery 160 that fulgurite, which manages circuit 150 using busbar voltage Vbus,.
When power-supply system open but input pretreatment circuit 110 input power voltage not within a preset range when, i.e.,
When being not connected to external power supply or abnormal external power supply, power-supply system cannot be Beidou command type using external power supply at this time
Subscriber computer power supply, control circuit 120 control the electric discharge of internal battery 160 by management of charging and discharging circuit 150 and provide busbar voltage, the
The busbar voltage Vbus that one DC output circuit 130 and the second DC output circuit 140 are utilized respectively the offer of internal battery 160 turns
It changes into for the operating voltage for load supplying, so that in the environment of unsuitable external power supply, Beidou command type user
Machine can use internal battery power supply, work on.
Fig. 2 is the circuit diagram of input pretreatment circuit in power-supply system provided by one embodiment of the present invention, such as Fig. 2 institute
Show, input pretreatment circuit includes: connector JP5, field-effect tube Q3, fuse F1, diode D6, resistance R31, capacitor C12
~C18, DC/DC conversion module A2；
Connector JP5 is the power input port of entire power-supply system, can be directly connected to direct current input, can also pass through
AC/DC adapter A5 connection exchange input, two kinds of input powers share a connector JP5.
The cathode of input power connects the drain electrode of field-effect tube Q3, the source of field-effect tube Q3 by 1~3 foot of connector JP5
Pole ground connection；The cathode and anode of diode D6 connects the grid and source electrode of field-effect tube Q3 respectively, and diode D6 is a pressure stabilizing two
Pole pipe can keep the voltage stabilization between the grid and source electrode of effect pipe Q3.Field-effect tube Q3 be used for input power just
When cathode is reversed, the cathode voltage of resistance value input power, which enters power-supply system, leads to device failure.When input power polarity just
When true, field-effect tube Q3 conducting；When the polarity upset of input power, field-effect tube Q3 cut-off prevents late-class circuit from damaging.
The anode of input power connects the first end of fuse F1 by 4~6 feet of connector JP5, and the second of fuse F1
Hold the input terminal of connecting resistance R31, the first end of capacitor C12, C13, DC/DC conversion module A2 respectively, i.e. two Vin1 pins.Electricity
Hinder the grid of the second termination field-effect tube Q3 of R31, the second end ground connection of capacitor C12, C13.Control circuit 120 can insured
Within a preset range whether the second end of silk F1 samples the voltage of input power Vin, judge it.Fuse F1 was played
The effect of protection is flowed, fuse F1 fuses when current is excessive, prevents internal components from damaging.
The output end of DC/DC conversion module A2 connects the first end of capacitor C14~C18 respectively, and the second of capacitor C14~C18
End ground connection.Polarized capacitor can be selected in capacitor C12~C18, and capacitance is larger, there is preferable low frequency filtering ability.Capacitor C12, C13
The power supply signal for being input to DC/DC conversion module A2 is filtered；Capacitor C14~C18 exports DC/DC conversion module A2
Electric signal is filtered, and the voltage after filtering is the busbar voltage Vbus of 32V.
Fig. 3 is the circuit diagram of control circuit in power-supply system provided by one embodiment of the present invention, as shown in figure 3, control
Circuit includes: control chip U1, resistance R2~R10, R25~R27, capacitor C7~C10, diode D2, D4, light emitting diode
LED1~LED3.
Control chip U1's
1 foot Vdd meets working power Vcc；
2 foot RA5 receive the input of enable signal ON/OFF by resistance R2, and low level is opened；
3 foot RA4 meet input power Vin by the partial pressure of resistance R5 and resistance R10, whether detect input voltage in default model
In enclosing；
4 foot RA3 meet reset signal MCLR；
The electric quantity signal of 5 foot RC5 output internal battery；
6 foot RC4 connect the cathode of diode D2, and the anode of diode D2 is respectively to the first DC output circuit and the second direct current
Output circuit sends control signal；
7 foot RC3 receive the charging status signal that management of charging and discharging circuit is sent；
8 foot RC2 connect the anode of diode D4, and the cathode of diode D4 sends charge control letter to management of charging and discharging circuit
Number；
9 foot RC1 distinguish the anode and luminous two of sending and receiving optical diode LED1 by resistance R27 by 1 foot of connector JP1
The cathode of pole pipe LED2；
10 foot RC0 distinguish the cathode of sending and receiving optical diode LED1 by 2 feet of connector JP1 by resistance R26 and shine
The anode of diode (LED) 2；
11 foot RA2 send charge and discharge conversion signal BAT CTL to management of charging and discharging circuit by resistance R4；
12 foot RA1 meet reference voltage Vref by resistance R3；
13 foot RA0 receive the voltage state signal BAT Sen of internal battery by the partial pressure of resistance R6 and R7, built in detection
Cell voltage state；
14 foot Vss ground connection.
It controls chip U1 and sampling and 13 feet of the 3 foot RA4 to input power Vin is realized by internal analog-digital converter
Sampling of the RA0 to the voltage of internal battery.
The anode and cathode of Light-emitting diode LED 3 can be connected respectively to 3 feet and 4 feet of connector JP1；Connector JP1
3 feet 5V power supply is connect by resistance R25,4 feet ground connection；When power-supply system work, LED3 is lighted, so as to indicate power supply system
The working condition of system.
Control circuit further include: voltage stabilizing chip U3, resistance R23, capacitor C1, C6, diode D3, capacitor C1, C6 are to have pole
Property capacitor.
The input terminal Vin of voltage stabilizing chip U3 meets busbar voltage Vbus, ground terminal GND ground connection, output end vo ut connecting resistance R23
First end after, provide operating voltage Vcc as output end for control circuit.
The both ends of capacitor C1 meet the input terminal Vin and ground terminal GND of voltage stabilizing chip U3 respectively, for being input to pressure stabilizing core
The busbar voltage Vbus of piece U3 is filtered；The both ends of capacitor C6 meet the output end vo ut and ground terminal of voltage stabilizing chip U3 respectively
GND, the power supply signal for exporting to voltage stabilizing chip U3 are filtered.After the cathode of the second terminating diode D3 of resistance R23,
Reference voltage Vref is provided as output end for control circuit；Diode D3 is a zener diode, plus earth.
Fig. 4 is the circuit diagram of management of charging and discharging circuit in power-supply system provided by one embodiment of the present invention, such as Fig. 4 institute
Show, management of charging and discharging circuit includes: management of charging and discharging chip A1, inductance L1, resistance R13, capacitor C11, C22, C23, field-effect
Pipe Q1, diode D7, capacitor C11, C22, C23 are polarized capacitor.
The input terminal Vin of management of charging and discharging chip A1 connects the first end of the first end of inductance L1, capacitor C11, inductance respectively
The second end ground connection of the second termination busbar voltage Vbus, capacitor C11 of L1.Inductance L1 is used to filter out the height in busbar voltage Vbus
Frequency ingredient, capacitor C11 are used to filter out the alternating component in busbar voltage Vbus.
The output end vo of management of charging and discharging chip A1 connects the first end of the drain electrode of field-effect tube Q1, capacitor C22, C23 respectively；
The both ends of resistance R13 connect the grid and source electrode of field-effect tube Q1 respectively；The second end of capacitor C22, C23 are grounded.
The anode of diode D7 connects the drain electrode of field-effect tube Q1, and the cathode of diode D7 connects the first end of inductance L1.
The 7 foot charge control ends of management of charging and discharging chip A1 receive the charging control signal that control circuit is sent, the charging of 5 feet
State end sends charging status signal to control circuit.
The source electrode of field-effect tube Q1 connects internal battery BT1 as output end, and management of charging and discharging chip A1 has constant pressure and constant
Current charge characteristic can implement the management of charge and discharge according to the state of internal battery BT1, be interior specifically by field-effect tube Q1
Set battery BT1 trickle charge, constant-current charge, constant-voltage charge etc..Field-effect tube Q1 drains to be sent to the 13 foot RA0 of control chip U1
The voltage state signal BAT Sen of internal battery BT1, grid receive charge and discharge conversion signal from the 11 foot RA2 of control chip U1
BAT CTL。
Judge that out-put supply has when the 3 foot RA4 detection input power state of control chip U1 in conjunction with Fig. 3 and Fig. 4 and be difficult
And whether voltage is normal, when voltage not within a preset range when, illustrate power-supply system connection external power supply be in under-voltage, over-voltage
Or power free abnormal state, it can not be at this time the power supply of Beidou command type subscriber computer using external power supply, control chip U1's
11 foot RA2 send charge and discharge conversion signal BAT CTL to the grid of field-effect tube Q1, field-effect tube Q1 are connected, internal battery
BT1 passes through field-effect tube Q1, diode D7 back discharge, provides busbar voltage Vbus and maintains the first DC output circuit and second
The output of DC output circuit powers for Beidou command type subscriber computer, continues to work.When being connected to normal external power supply
When, or when power-supply system is closed, field-effect tube Q1 cut-off, internal battery BT1 terminates electric discharge.
The 13 foot RA0 for controlling chip U1 receive the voltage state signal BAT of internal battery BT1 from the drain electrode of field-effect tube Q1
Sen detects the electricity of internal battery BT1, exports the electric quantity signal of internal battery BT1 to host computer by 5 foot RC5.Work as power supply
System is powered using external power supply, and when internal battery BT1 not enough power supply, and the 8 foot RC2 of control chip U1 pass through diode D4
Charging control signal is sent to the 7 foot TR of management of charging and discharging chip A1, control management of charging and discharging circuit is that internal battery BT1 fills
Electricity.
The 7 foot RC3 for controlling chip U1 receive the charged state letter that the 5 foot charged state ends of management of charging and discharging chip A2 are sent
Number, detect the state of charge-discharge circuit, control chip U1 by 9 foot RC1 and 10 foot RC0 drive Light-emitting diode LED 1 or
LED2, due to Light-emitting diode LED 1 LED2 cathode and anode direction just on the contrary, synchronization at most have one shine
Diode is lighted, and different colors, such as one green of a red can be used in the LED2 of LED1, red when charging
The LED of color is lighted；When charging is complete, green LED is lighted, to indicate current charged state.
Fig. 5 is the circuit diagram of the first DC output circuit in power-supply system provided by one embodiment of the present invention, such as Fig. 5 institute
Show that the first DC output circuit includes: 5V DC/DC conversion chip A4, capacitor C21, C30, C31, C33, inductance L2, L6, capacitor
C21, C30, C31 are polarized capacitor.
The input terminal Vin1 of 5V DC/DC conversion chip A4 meets busbar voltage VBUS by inductance L2, and passes through capacitor C21
Ground connection.
The output end of 5V DC/DC conversion chip A4 connects the first end of capacitor C30, C31, inductance L6 respectively, capacitor C30,
The second end of C31 is grounded, and 3 feet of connector JP2 are connected to after the first end of the second termination capacitor C33 of inductance L6, as the
The output end of one DC output circuit provides the voltage of 5V for the governor circuit of Beidou command type subscriber computer, and the second of capacitor C33
End ground connection.
In conjunction with Fig. 3 and Fig. 5, the 6 foot RC4 that the control terminal Rem of 5V DC/DC conversion chip A4 receives control chip U1 are sent
5V control signal, for controlling the output of the first DC output circuit.When the 2 foot RA5 of control chip U1 receive high/low electricity
When flat enable signal, 6 foot RC4 send 5V control letter to the control terminal Rem of 5V DC/DC conversion chip A4 by diode D2
Number, the output of the first DC output circuit of close/open.
Fig. 6 is the circuit diagram of the second DC output circuit in power-supply system provided by one embodiment of the present invention, such as Fig. 6 institute
Show, the second DC output circuit include: 28V DC/DC conversion chip A3, capacitor C19, C20, C24~C27, C32, inductance L4,
L5, capacitor C19, C20, C24~C27 are polarized capacitor.
The input terminal Vin of 28V DC/DC conversion chip A3 meets busbar voltage Vbus, capacitor C19 and C20 simultaneously by inductance L4
After connection, the input terminal of a termination 28V DC/DC conversion chip A3, other end ground connection.
The output end vo of 28V DC/DC conversion chip A3 connects the first end of capacitor C24~C27, inductance L5, capacitor respectively
The second end of C24~C27 is grounded, and 3 feet and 4 of connector JP3 are connected after the first end of the second termination capacitor C32 of inductance L5
Foot, the output end as the second DC output circuit provide 28V voltage, capacitor for the power supply circuit of Beidou command type subscriber computer
The second end of C32 is grounded.
In conjunction with Fig. 3 and Fig. 6, the 6 foot RC4 that the control terminal CTL of 28V DC/DC conversion chip A3 receives control chip U1 are sent
28V control signal, for controlling the output of the second DC output circuit.When control chip U1 2 foot RA5 receive it is high/low
When the enable signal of level, 6 foot RC4 send 28V control to the control terminal CTL of 28V DC/DC conversion chip A3 by diode D2
Signal processed, the output of the second DC output circuit of close/open.
In conclusion power-supply system provided in an embodiment of the present invention, first.When Beidou command type subscriber computer is in mobile command
In use, the power-supply system can be directly connected to the vehicle power supply of 12V or 24V；When Beidou command type subscriber computer refers in fixation
Institute is waved in use, the power-supply system can connect 220V AC power source by power supply adaptor, by selecting a variety of external power supplies
Power supply, which obtains input power, makes Beidou command type subscriber computer have the ability for rapidly adapting to power supply environmental change.The embodiment of the present invention
The power-supply system of offer has adaptive input power supply characteristic, is adapted to the power supply electricity of 6V~32V wide scope.
Secondly, the power-supply system includes internal battery, the electricity of internal battery is obtained by the voltage sample to internal battery
Amount state, and to host computer output internal battery electric quantity signal.When the power-supply system using external power supply work normally and
When internal battery not enough power supply, charge for internal battery；When external power supply is under-voltage, over-voltage or when non-transformer, internal battery electric discharge
Busbar voltage is provided, the output of the first DC output circuit and the second DC output circuit is maintained, so that Beidou command type user
Machine can use internal battery power supply, work in the environment of unsuitable external power supply.
Finally, the connecting pin of the cathode of power-supply system and input power is provided with end field-effect tube, when the pole of input power
Property it is correct when, field-effect tube conducting；When the polarity upset of input power, field-effect tube cut-off prevents late-class circuit from damaging.Electricity
The connecting pin of the anode of source system and input power is provided with fuse, can close automatically when over-voltage, overcurrent, short circuit
Output is closed, damage power-supply system or Beidou command type subscriber computer are avoided.
The above description is merely a specific embodiment, under above-mentioned introduction of the invention, those skilled in the art
Other improvement or deformation can be carried out on the basis of the above embodiments.It will be understood by those skilled in the art that above-mentioned tool
Body description only preferably explains that the purpose of the present invention, protection scope of the present invention should be subject to the protection scope in claims.
Claims (9)
1. a kind of power-supply system, for powering for Beidou command type subscriber computer, which is characterized in that the power-supply system includes: defeated
Enter to pre-process circuit, the first DC output circuit, the second DC output circuit and control circuit；
The input pre-processes circuit, connects outside for being directly connected to external Vehicular direct-current power supply, or by power supply adaptor
AC power source obtains input power；
The control circuit, for controlling the power-supply system and opening or closing according to the enable signal received；
When the power-supply system is opened, the control circuit is also used to the electricity of the input power to the input pretreatment circuit
Pressure is sampled, and whether within a preset range to judge the voltage of the input power；And when the voltage of the input power exists
When in preset range, controls the input pretreatment circuit and the voltage of the input power is converted into stable busbar voltage,
And control first DC output circuit and the busbar voltage is converted into being used to be negative by the second DC output circuit respectively
Carry the operating voltage of power supply；
The input pretreatment circuit includes: connector, third field-effect tube, fuse, the 6th diode, the 31st electricity
Resistance, the 12nd capacitor, the 13rd capacitor, the 14th capacitor, the 15th capacitor, the 16th capacitor, the 17th capacitor, the 18th electricity
Hold and DC/DC conversion module；
The connector is the power input port of the power-supply system；
The cathode of input power connects the leakage of the third field-effect tube by the first foot, crus secunda and third foot of the connector
Pole, the source electrode ground connection of the third field-effect tube；The cathode and anode of 6th diode connect the third field-effect respectively
The grid and source electrode of pipe；
The anode of input power connects the first end of the fuse by the 4th foot, the 5th foot and the 6th foot of the connector,
The second end of the fuse connects the first end of the 31st resistance, first end of the 12nd capacitor, described respectively
The input terminal of the first end of 13rd capacitor, the DC/DC conversion module；Second termination described the of the 31st resistance
The grid of three field-effect tube；The second end of 12nd capacitor, the second end of the 13rd capacitor ground connection；
The output end of the DC/DC conversion module connect respectively the first end of the 14th capacitor, the 15th capacitor
After one end, the first end of the 16th capacitor, the first end of the 17th capacitor, the first end of the 18th capacitor,
As busbar voltage；14th capacitor, the 15th capacitor, the 16th capacitor, the 17th capacitor and the 18th capacitor
Two ends ground connection.
2. power-supply system as described in claim 1, which is characterized in that the power-supply system further includes internal battery and charge and discharge
Manage circuit；The control circuit is also used to sample the voltage of the internal battery, obtains the electricity of the internal battery
Amount state；
When the power-supply system is opened, and the input pre-processes the voltage of the input power of circuit within a preset range,
If the internal battery not enough power supply, the control circuit controls the management of charging and discharging circuit using the busbar voltage and is
The internal battery charging；
When the power-supply system is opened, and the voltage of the input power of the input pretreatment circuit is not within a preset range
When, the control circuit is discharged by internal battery described in the management of charging and discharging circuit control provides busbar voltage.
3. power-supply system as claimed in claim 2, which is characterized in that the control circuit includes: control chip, the second electricity
Resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the tenth resistance, the 26th resistance, the 20th
Seven resistance, the 7th capacitor, the 8th capacitor, the 9th capacitor, the tenth capacitor, the second diode, the 4th diode, the first light-emitting diodes
Pipe and the second light emitting diode；
First foot of the control chip connects working power；
The crus secunda of the control chip receives enable signal by the second resistance；
The third foot of the control chip connects input power by the partial pressure of the 5th resistance and the tenth resistance；
4th foot of the control chip connects reset signal；
5th foot of the control chip exports the electric quantity signal of the internal battery；
6th foot of the control chip connects the cathode of second diode, and the anode of second diode is respectively to described
First DC output circuit and the second DC output circuit send control signal；
7th foot of the control chip receives the charging status signal that the management of charging and discharging circuit is sent；
The octal of the control chip connects the anode of the 4th diode, and the cathode of the 4th diode is to the charge and discharge
Fulgurite manages circuit and sends charging control signal；
It is described control chip the 9th foot by the 27th resistance connect respectively first light emitting diode anode and
The cathode of second light emitting diode；
It is described control chip the tenth foot by the 26th resistance connect respectively first light emitting diode cathode and
The anode of second light emitting diode；
11st foot of the control chip sends charge and discharge conversion to the management of charging and discharging circuit by the 4th resistance
Signal；
12nd foot of the control chip connects reference voltage by the 3rd resistor；
13rd foot of the control chip receives the in-built electrical by the partial pressure of the 6th resistance and the 7th resistance
The voltage state signal in pond；
The 14th foot ground connection of the control chip.
4. power-supply system as claimed in claim 3, which is characterized in that the control circuit further include: voltage stabilizing chip, the 20th
Three resistance, first capacitor, the 6th capacitor, third diode；
The input terminal of the voltage stabilizing chip connects the first end of the busbar voltage, the first capacitor respectively；The first capacitor
Second end ground connection；
The output end of the voltage stabilizing chip connects the first end of the 6th capacitor, the first end of the 23rd resistance respectively
Afterwards, operating voltage is provided for the control circuit as output end；The second end of 6th capacitor is grounded；
It is the control circuit as output end after the cathode of the second termination third diode of the 23rd resistance
Reference voltage is provided；The plus earth of the third diode.
5. power-supply system as claimed in claim 4, which is characterized in that the management of charging and discharging circuit includes: management of charging and discharging
Chip, the first inductance, thirteenth resistor, the 11st capacitor, the 22nd capacitor, the 23rd capacitor, the first field-effect tube,
Seven diodes；
The input terminal of the management of charging and discharging chip connect respectively the first end of first inductance, the 11st capacitor first
End；The second termination busbar voltage of first inductance；The second end of 11st capacitor is grounded；
The output end of the management of charging and discharging chip connects the drain electrode of first field-effect tube, the 22nd capacitor respectively
The first end of first end, the 23rd capacitor；The both ends of the thirteenth resistor connect first field-effect tube respectively
Grid and source electrode；The second end of 22nd capacitor, the second end of the 23rd capacitor ground connection；
The anode of 7th diode connects the drain electrode of first field-effect tube, and the cathode of the 7th diode connects described
The first end of one inductance；
The charge control end of the management of charging and discharging chip receives the charging control signal that the control circuit is sent, charged state
It holds to the control circuit and sends charging status signal；
The source electrode of first field-effect tube connects the internal battery as output end, drains and sends institute to the control circuit
The voltage state signal of internal battery is stated, grid receives charge and discharge conversion signal from the control circuit.
6. power-supply system as claimed in claim 5, which is characterized in that
When the voltage of the control chip third foot not within a preset range when, the 11st foot is to the management of charging and discharging circuit
The grid of first field-effect tube sends charge and discharge conversion signal, and first field-effect tube is connected, the internal battery electric discharge,
Busbar voltage is provided；
7th foot of the control chip receives the charging status signal that the charged state end of the management of charging and discharging chip is sent,
The first light emitting diode or the second light emitting diode are driven by the 9th foot and the tenth foot, shows corresponding charged state.
7. power-supply system as claimed in claim 6, which is characterized in that first DC output circuit includes: 5V DC/DC
Conversion chip, the 21st capacitor, the 30th capacitor, the 31st capacitor, the 33rd capacitor, the second inductance and the 6th electricity
Sense；
The input terminal of the 5V DC/DC conversion chip connects the first end of second inductance, the 21st capacitor respectively
First end；The second termination busbar voltage of second inductance；The second end of 21st capacitor is grounded；
The output end of the 5V DC/DC conversion chip connects the first end of the 30th capacitor, the 31st capacitor respectively
First end, the first end of the 6th inductance；Second end, the second termination of the 31st capacitor of 30th capacitor
Ground；After the first end of second termination the 33rd capacitor of the 6th inductance, as first DC output circuit
Output end；The second end of 33rd capacitor is grounded；
The control terminal of the 5V DC/DC conversion chip receives the control signal that the control circuit is sent.
8. power-supply system as claimed in claim 7, which is characterized in that second DC output circuit includes: 28V DC/DC
Conversion chip, the 19th capacitor, the 20th capacitor, the 24th capacitor, the 25th capacitor, the 26th capacitor, the 20th
Seven capacitors, the 32nd capacitor, the 4th inductance and the 5th inductance；
The input terminal of the 28V DC/DC conversion chip connects the first end of the 4th inductance, the 19th capacitor respectively
The first end of first end, the 20th capacitor；The second termination busbar voltage of the 4th inductance；19th electricity
The second end of appearance, the second end of the 20th capacitor ground connection；
The output end of the 28V DC/DC conversion chip connects the first end of the 24th capacitor, the 25th capacitor respectively
First end, the first end of the 26th capacitor, first end, the first end of the 5th inductance of the 27th capacitor；
Second end, the second end of the 25th capacitor, the second end of the 26th capacitor, described of 24th capacitor
The second end of 27 capacitors is grounded；After the first end of second termination the 32nd capacitor of the 5th inductance, as
The output end of second DC output circuit；The second end of 32nd capacitor is grounded；
The control terminal of the 28V DC/DC conversion chip receives the control signal that the control circuit is sent.
9. power-supply system as claimed in claim 8, which is characterized in that
When the crus secunda of the control chip receives the enable signal of high/low level, by the 6th foot to the 5V DC/
The control terminal of DC conversion chip and the control terminal of the 28V DC/DC conversion chip send control signal, the described in close/open
The output of one DC output circuit and second DC output circuit.
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| CN201610662224.8A CN106208228B (en) | 2016-08-12 | 2016-08-12 | A kind of power-supply system |
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| CN201610662224.8A CN106208228B (en) | 2016-08-12 | 2016-08-12 | A kind of power-supply system |
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| CN106208228B true CN106208228B (en) | 2018-12-18 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111082654B (en) * | 2018-10-19 | 2021-04-27 | 深圳猛犸电动科技有限公司 | Multi-voltage power supply power conversion circuit, vehicle-mounted embedded power supply and power supply system |
| CN109545025B (en) * | 2018-11-30 | 2021-01-22 | 西安润兴电子科技有限公司 | Human body electric shock simulation device and method |
| CN110361552B (en) * | 2019-06-11 | 2023-06-09 | 北京博奥晶典生物技术有限公司 | Centrifugal portable microfluidic analysis device and application method thereof |
| CN112013963A (en) * | 2020-07-16 | 2020-12-01 | 南京莱斯电子设备有限公司 | Portable photoelectric information processing platform |
| CN112606813B (en) * | 2020-12-23 | 2022-06-28 | 神华铁路装备有限责任公司 | Train driver signal prompter and train brake monitoring system |
| CN113708426A (en) * | 2021-09-23 | 2021-11-26 | 山西华控伟业科技有限公司 | Multi-path comprehensive power supply system based on motor state diagnosis system |
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| CN2550945Y (en) * | 2002-05-13 | 2003-05-14 | 中国人民解放军军事医学科学院卫生装备研究所 | Multiple input and output power source |
| WO2013146773A1 (en) * | 2012-03-27 | 2013-10-03 | シャープ株式会社 | Power supply system |
| CN105576814A (en) * | 2014-10-13 | 2016-05-11 | 康舒科技股份有限公司 | DC power supply redundancy system |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2550945Y (en) * | 2002-05-13 | 2003-05-14 | 中国人民解放军军事医学科学院卫生装备研究所 | Multiple input and output power source |
| WO2013146773A1 (en) * | 2012-03-27 | 2013-10-03 | シャープ株式会社 | Power supply system |
| CN105576814A (en) * | 2014-10-13 | 2016-05-11 | 康舒科技股份有限公司 | DC power supply redundancy system |
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