CN105977908B - Unmanned plane can recover DC over-voltage protection circuit automatically - Google Patents
Unmanned plane can recover DC over-voltage protection circuit automatically Download PDFInfo
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- CN105977908B CN105977908B CN201610460725.8A CN201610460725A CN105977908B CN 105977908 B CN105977908 B CN 105977908B CN 201610460725 A CN201610460725 A CN 201610460725A CN 105977908 B CN105977908 B CN 105977908B
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- comparator
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- conducting wire
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- reference voltage
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/20—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage
- H02H3/202—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage for dc systems
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/06—Details with automatic reconnection
- H02H3/066—Reconnection being a consequence of eliminating the fault which caused disconnection
Abstract
The present invention relates to a kind of unmanned planes can recover DC over-voltage protection circuit automatically.Its purpose is to provide a kind of vdiverse in function, reliability it is high can recover DC over-voltage protection circuit automatically.The present invention includes first comparator, the second comparator, magnetic latching relay, contactor and reference power supply, and first comparator and the second comparator all use the two-way comparator of model LM193JG.According to first comparator and the difference for being connected and disconnected from mode of each pin of the second comparator; circuit can be respectively at overvoltage protection state, more than pressure guard mode and normal automatic return circuit state; make whole system while transition and overvoltage protection requirement is met; both will not due to voltage instability frequent switching; it again can automatic recovery of power supply; guarantee to greatly reduce application risk, further improve the reliability and security of airborne power supply system.
Description
Technical field
The present invention relates to aircraft electric fields, can recover DC over-voltage protection electricity automatically more particularly to a kind of unmanned plane
Road.
Background technology
Unmanned plane design for power supply and distribution is nearly ten years increasingly by a kind of aircraft electrical system of concern, in core
Culvert is the electricity consumption that realization is reliable, safe by design for power supply and distribution by onboard generators reference power supply and battery feed, wherein,
Overvoltage protection is very important component.It is that appropriate threshold value is set by comparing device that overvoltage protection, which obtains basic principle, when
When generator reference power supply voltage is higher than some voltage value and reaches certain time, comparator triggering generates switching signal, control
Relay realizes reference power supply and busbar off-grid, so as to protect airborne other electric/electronic devices.
Traditional overvoltage crowbar has anti-delay characteristic, but function is single, without being not added with when voltage is more than pressure
The direct handoff functionality of anti-delay, the also self-recovering function not when voltage is restored to normal voltage, and require entire mistake
The situation of the frequent switching of main contactor caused by due to voltage transient shakiness is not present in journey, to overvoltage crowbar at nobody
The use in machine field causes significant limitation.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of unmanned planes vdiverse in function, that reliability is high to recover straight automatically
Flow through voltage protection circuit.
Unmanned plane of the present invention can recover DC over-voltage protection circuit automatically, wherein, compare including first comparator, second
Device, magnetic latching relay, contactor and reference power supply, first comparator and the second comparator are all using model LM193JG's
Two-way comparator, the divider resistance and second that reference voltage terminal forms successively by the 25th resistance and the 26th resistance
It is connected after 17 resistance and the 21st capacitor composition RC delay circuits with the first of first comparator with phase pin, the first ratio
It is connected respectively with the first of first comparator with phase pin compared with the first reverse phase pin of device and the first grounding pin, in reference voltage
The 6th conducting wire is drawn at end, and the divider resistance of the 23rd resistance and the 24th resistance composition is in series on the 6th conducting wire, the
The 9th conducting wire is drawn between 23 resistance and the 24th resistance, the other end of the 9th conducting wire and one end of the 30th resistance connect
It connects, the other end of the 30th resistance accesses the second of first comparator with phase pin by the tenth conducting wire, is set on the tenth conducting wire
There are the 23rd capacitor, the second grounding pin access zero potential point of first comparator, the first output of first comparator is drawn
Foot is connected by the 12nd conducting wire with the anode of the first diode, and the second reversed pin of first comparator passes through the tenth three wires
It is connected with the anode of the second diode, the cathode of the first diode is drawn after being connected with the cathode of the second diode at tie point
14th conducting wire, the other end of the 14th conducting wire are connected with the cathode of the 3rd diode, the anode and the one or three of the 3rd diode
The base stage connection of pole pipe, the emitter access zero potential point of the first triode, the confession of the collector and accumulator of the first triode
Electric end connection, the feeder ear of accumulator are also reversed with the second of the first output pin of first comparator and first comparator respectively
Pin connects, and the feeder ear of accumulator and the second output pin of first comparator connect, the emitter access of the second triode
Zero potential point, the collector of the second triode and the feeder ear of accumulator connect, the base stage of the second triode and the 4th diode
Cathode connection, the anode of the 4th diode is connected with the first output pin of the second comparator, in the anode of the 4th diode
The 20th conducting wire is drawn between the second comparator, the other end of the 20th conducting wire and the feeder ear of accumulator connect, benchmark electricity
Pressure side is successively by the 21st resistance and the divider resistance and the 34th resistance and the 20th of the 22nd resistance composition
It is connected after four capacitors composition RC delay circuits with the first of the second comparator with phase pin, the first reverse phase of the second comparator is drawn
Foot is connected with the first of the second comparator with phase pin, the first reverse phase pin access zero potential point of the second comparator, the second ratio
Compared with being provided with the 27th capacitor, the first grounding pin of the second comparator between the first reverse phase pin and zero potential point of device
Access zero potential point, the second comparator the second output pin access accumulator feeder ear, the collector of the first triode with
Magnetic latching relay is installed, the coil of magnetic latching relay and the control terminal of contactor connect between the collector of the second triode
It connects, the voltage input end of contactor is connected with reference voltage terminal.
Unmanned plane of the present invention can recover DC over-voltage protection circuit automatically, wherein the reference power supply includes reference voltage
The input port of source, accumulator and multiple capacitors, the output terminal of accumulator and reference voltage source connects, reference voltage source it is defeated
Exit port accesses reference voltage terminal, the ground terminal access zero potential point of reference voltage source, the input port of reference voltage source and zero
The 18th capacitor and the 19th capacitor are parallel between potential point, between the output port and zero potential point of reference voltage source
It is provided with the 20th capacitor.
Unmanned plane of the present invention can recover DC over-voltage protection circuit automatically, wherein the reference voltage source selects the life of AD companies
The reference voltage source of the model AD586SQ of production.
Unmanned plane of the present invention can recover DC over-voltage protection circuit automatically, wherein the 3rd diode and the 4th diode
All it is zener diode.
Unmanned plane of the present invention can recover DC over-voltage protection circuit automatically, wherein one end of 1 15 resistance passes through
First conducting wire is connected with reference voltage terminal, one end that the other end of the 25th resistance passes through the second conducting wire and the 26th resistance
Connection, the other end of the 26th resistance access zero potential point by privates, privates are drawn on the second conducting wire, the
The other end of four conducting wires is connected with one end of the 27th resistance, and the other end of the 27th resistance passes through the 5th conducting wire access the
The first of one comparator is provided with the 21st capacitor with phase pin between privates and privates.
Unmanned plane of the present invention can recover DC over-voltage protection circuit automatically, wherein one end of 1 11 resistance passes through
21st conducting wire is connected with reference voltage terminal, and the other end of the 21st resistance passes through the 22nd conducting wire and the 22nd electricity
One end connection of resistance, the other end of the 22nd resistance access zero potential point, the 20th three wires are drawn on the 22nd conducting wire,
The other end of 20th three wires is connected with one end of the 34th resistance, and the other end of the 34th resistance draws the 25th
Conducting wire, the other end of the 25th conducting wire access the first of the second comparator with phase pin, are provided on the 25th conducting wire
24th capacitor draws the 26th conducting wire, zero electricity of other end access of the 26th conducting wire on the 24th conducting wire
Gesture point, the 27th capacitor are arranged on the 26th conducting wire.
Unmanned plane of the present invention can recover DC over-voltage protection circuit automatically, wherein the feeder ear output voltage of the accumulator
For 28V.
Unmanned plane of the present invention can recover DC over-voltage protection circuit difference from prior art and be automatically：Root of the present invention
According to first comparator and the difference for being connected and disconnected from mode of each pin of the second comparator, circuit can be respectively at overvoltage protection shape
State, more than pressure guard mode and normal automatic return circuit state, whole system is made to meet transition and overvoltage protection requirement
Meanwhile not only will not due to voltage instability frequent switching, but also can automatic recovery of power supply, guarantee to greatly reduce application risk,
The reliability and security of airborne power supply system are further improved, is provided for application of the overvoltage crowbar in unmanned plane field
Wide space.
DC over-voltage protection circuit can be recovered automatically to unmanned plane of the present invention below in conjunction with the accompanying drawings to be described further.
Description of the drawings
Fig. 1 is the circuit that unmanned plane of the present invention can recover self- recoverage overvoltage crowbar in DC over-voltage protection circuit automatically
Structure chart；
Fig. 2 is the circuit structure diagram that unmanned plane of the present invention can recover reference power supply in DC over-voltage protection circuit automatically；
Fig. 3 can recover circuit when DC over-voltage protection circuit is operated in overvoltage protection state for unmanned plane of the present invention automatically
Figure；
Fig. 4 can recover electricity when DC over-voltage protection circuit is operated in more than pressure guard mode for unmanned plane of the present invention automatically
Lu Tu；
Fig. 5 can recover DC over-voltage protection circuit for unmanned plane of the present invention and be operated in normal automatic return circuit state automatically
When circuit diagram.
Specific embodiment
Unmanned plane of the present invention can recover DC over-voltage protection circuit automatically, be protected including reference power circuit and self- recoverage overvoltage
Protection circuit, the reference voltage terminal of reference power circuit are connected with the reference power supply end of self- recoverage overvoltage crowbar, pass through quasi- electricity
Source circuit is powered for self- recoverage overvoltage crowbar.
As shown in Figure 1, self- recoverage overvoltage protection electricity in DC over-voltage protection circuit can be recovered automatically for unmanned plane of the present invention
The circuit structure diagram on road, including first comparator, the second comparator, magnetic latching relay Ka, contactor KM and reference power supply,
One comparator and the second comparator all use the two-way comparator of model LM193JG.Reference voltage terminal by the first conducting wire with
One end connection of 25th resistance R25, the other end of the 25th resistance R25 pass through the second conducting wire and the 26th resistance
One end connection of R26, the other end of the 26th resistance R26 accesses zero potential point GND by privates, on the second conducting wire
Privates are drawn, the other end of privates is connected with one end of the 27th resistance R27, and the 27th resistance R27's is another
One end by the 5th conducting wire access first comparator first with phase pin 3, be provided between privates and privates
21st capacitor C21, the 27th resistance R27 and the 21st capacitor C21 form RC delay circuits.First comparator
The first reverse phase pin 2 and the first grounding pin 2 be connected respectively with the first of first comparator with phase pin 3, first comparator
The first reverse phase pin 2 with first with the 22nd capacitor C22 is provided between phase pin 3, the first of first comparator connects
Ground pin 2 is with first with being provided with the 25th capacitor C25 between phase pin 3.The 6th conducting wire is drawn on the first conducting wire, the
The other end of six conducting wires is connected with one end of the 23rd resistance R23, and the other end of the 23rd resistance R23 passes through the 7th conducting wire
It is connected with one end of the 24th resistance R24, the other end of the 24th resistance R24 accesses zero potential point by the 8th conducting wire
GND draws the 9th conducting wire on the 7th conducting wire, and the other end of the 9th conducting wire is connected with one end of the 30th resistance R30, and the 30th
The other end of resistance R30 accesses the second of first comparator with phase pin 6 by the tenth conducting wire, and the is provided on the tenth conducting wire
23 capacitor C23, the second grounding pin 5 of first comparator accesses zero potential point GND by the 11st conducting wire, the tenth
The 26th capacitor C26 is provided on one conducting wire.First output pin 1 of first comparator passes through the 12nd conducting wire and first
The anode connection of diode D1, the second reversed pin 7 of first comparator by the tenth three wires and the second diode D2 just
Pole connects, and the cathode of the first diode D1 draws the 14th conducting wire after being connected with the cathode of the second diode D2 at tie point,
The other end of 14th conducting wire is connected with one end of the 31st resistance R31, the other end and the three or two of the 31st resistance R31
The cathode connection of pole pipe D3, the anode of the 3rd diode D3 are connected with the base stage of the first triode Q1, the hair of the first triode Q1
The collector of emitter-base bandgap grading access zero potential point GND, the first triode Q1 are connected by the feeder ear of the 15th conducting wire and accumulator, are stored
The feeder ear of battery also passes through the 16th conducting wire and the 17th conducting wire and the first output pin 1 and first of first comparator respectively
Second reversed pin 7 of comparator connects, and the 28th resistance R28 is provided on the 16th conducting wire, is set on the 17th conducting wire
There is the 29th resistance R29, the feeder ear of accumulator is also connected with the second output pin 8 of first comparator.Second triode
The emitter access zero potential point GND of Q2, the collector of the second triode Q2 pass through the 18th conducting wire and the feeder ear of accumulator
Connection, the base stage of the second triode Q2 are connected with the cathode of the 4th diode D4, the anode and the 32nd of the 4th diode D4
One end connection of resistance R32, the other end of the 32nd resistance R32 pass through the 19th conducting wire and the first of the second comparator and export
Pin 1 ' connects, and the 20th conducting wire is drawn on the 19th conducting wire, and the other end of the 20th conducting wire and the feeder ear of accumulator connect
It connects, the 33rd resistance R33 is provided on the 20th conducting wire.Reference voltage terminal passes through the 21st conducting wire and the 21st electricity
Hinder one end connection of R21, the other end of the 21st resistance R21 pass through the 22nd conducting wire and the 22nd resistance R22 one
End connection, the other end of the 22nd resistance R22 access zero potential point GND, and the 23rd is drawn on the 22nd conducting wire and is led
Line, the other end of the 20th three wires are connected with one end of the 34th resistance R34, the other end point of the 34th resistance R34
Not Yin Chu the 24th conducting wire and the 25th conducting wire, the other end of the 24th conducting wire and the other end of the 25th conducting wire point
The first reverse phase pin 2 ' and first of the second comparator is not accessed with phase pin 3 ', and the 20th is provided on the 25th conducting wire
Four capacitor C24 draw the 26th conducting wire, the other end access zero potential point of the 26th conducting wire on the 24th conducting wire
GND is provided with the 27th capacitor C27, the 34th resistance R34 and the 24th capacitor C24 on the 26th conducting wire
Form RC delay circuits.The first grounding pin 4 ' access zero potential point GND of second comparator.Second output of the second comparator
Pin 8 ' accesses the feeder ear of accumulator.It is installed between the collector of the first triode Q1 and the collector of the second triode Q2
There is magnetic latching relay Ka, the coil of magnetic latching relay Ka is connected with the control terminal of contactor KM, and the voltage of contactor KM is defeated
Enter end to be connected with reference voltage terminal by the 27th conducting wire, the voltage output end of contactor KM externally carries out voltage output.Its
Described in the 3rd diode D3 and the 4th diode D4 all be zener diode.
As shown in Fig. 2, the circuit knot of reference power supply in DC over-voltage protection circuit can be recovered automatically for unmanned plane of the present invention
Composition, including reference voltage source, accumulator and multiple capacitors, the output terminal of accumulator and the input port IN of reference voltage source
Connection, the output port OUT access reference voltage terminals of reference voltage source, the ground terminal access zero potential point GND of reference voltage source.
The 18th capacitor C18 and the 19th capacitor are parallel between the input port IN of reference voltage source and zero potential point GND
C19 is provided with the 20th capacitor C20 between the output port OUT of reference voltage source and zero potential point GND.Reference voltage
The reference voltage source of the model AD586SQ of AD companies production is selected in source.Battery stand is self- recoverage by reference voltage source
Overvoltage crowbar is powered, and ensures that self- recoverage overvoltage crowbar being capable of continuous firing.
The feeder ear output voltage of accumulator employed in one embodiment of the present of invention is 28V.
When tested generator reference power supply voltage is more than 33.75V and less than in the case of 65V, the present invention is operated in
During overvoltage protection state, as shown in figure 3, the second grounding pin 5, second of first comparator is reversed with phase pin 6, second at this time
7 and second output pin 8 of pin disconnects, while the first output pin 1 ' of the second comparator, the first reverse phase pin 2 ',
Phase pin 3 ', the first grounding pin 4 ' and the second output pin 8 ' disconnect together, and circuit carries out transition and overvoltage protection, electricity
Pressure is higher, and the protection response time is shorter, and action is faster, and the contactor KM off-grid times are faster.Wherein, reference power supply passes through the 20th
After five resistance R25 and the 26th resistance R26 partial pressures, then formed through the 27th resistance R27 and the 21st capacitor C21
RC delay circuits are sent to the first of first comparator with phase pin 3, the first reverse phase pin 2 access benchmark electricity of first comparator
Source, the first output pin 1 of first comparator control the first triode Q1, when tested generator reference power supply voltage more than
33.75V and less than in the range of 65V, first comparator is by controlling the first triode Q1 to drive magnetic latching relay Ka
It is dynamic, so as to which the coil of relay Ka be driven to carry out off-grid action, realize the off-grid of contactor KM.
When tested generator reference power supply voltage is in the case of more than 65V, the present invention is operated in super overvoltage protection shape
During state, as shown in figure 4, the first output pin 1 of first comparator, the first reverse phase pin 2, first are the same as phase pin 3, first at this time
4 and second output pin 8 of grounding pin disconnects, second the first output pin 1 ' of comparator, the first reverse phase pin 2 ', first
It is disconnected with phase pin 3 ', the first grounding pin 4 ' and the second output pin 8 ', circuit is controlled without anti-delay, directly disconnected
The coil of open relay Ka realizes the off-grid of contactor KM, and the response time at this time is only the dynamic of relay Ka and contactor KM
Make the time, wherein, reference power supply is delayed electric after the 23rd resistance R23 and the 24th resistance R24 partial pressures without RC
Road is fed directly to the second of first comparator with phase pin 6, and the second grounding pin 5 of first comparator is grounded, and second reversely draws
Foot 7 controls the first triode Q1, and the first triode Q1 is driven magnetic latching relay Ka, so as to drive the line of relay Ka
Circle carries out off-grid action, realizes the off-grid of contactor KM.
When tested generator reference power supply voltage is in the case of less than 29.5V, the present invention is operated in normal automatic time
During telegram in reply line state, as shown in figure 5, the first output pin 1 of first comparator, the first reverse phase pin 2, the first same coupling at this time
Foot 3, the first grounding pin 4, the second grounding pin 5, second are disconnected with phase pin 6, the second reversed 7 and second output pin 8 of pin
Connection is opened, circuit carries out delays time to control, and the coil of relay Ka should be closed automatically, the grid-connected actions of control contactor KM, wherein, base
Quasi- power supply is after the 21st resistance R21 and the 22nd resistance R22 partial pressures, then through the 34th resistance R34 and the 20th
The RC delay circuits of four capacitor C24 compositions are fed directly to the first of the second comparator with phase pin 3 ', and the of the second comparator
One reverse phase pin 2 ' accesses reference power supply, and the first output pin 1 ' of the second comparator controls the second triode Q2, the two or three pole
Pipe Q2 is driven magnetic latching relay Ka, and so as to which the coil of magnetic latching relay Ka be driven to carry out grid-connected action, realization connects
Tentaculum KM's is grid-connected.
Unmanned plane of the present invention can recover DC over-voltage protection circuit automatically, respectively be drawn according to first comparator and the second comparator
The difference for being connected and disconnected from mode of foot, circuit can be respectively at overvoltage protection state, more than pressure guard mode and normal automatic
Reflex circuit state makes whole system while transition and overvoltage protection requirement is met, both will not be frequent due to voltage instability
Switching, but can automatic recovery of power supply, guarantee to greatly reduce application risk, further improve the reliable of airborne power supply system
Property and security, wide space is provided for application of the overvoltage crowbar in unmanned plane field.The present invention it is vdiverse in function, can
It is high by property, compared with prior art with clear advantage.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the model of the present invention
It encloses and is defined, on the premise of design spirit of the present invention is not departed from, those of ordinary skill in the art are to the technical side of the present invention
The various modifications and improvement that case is made should all be fallen into the protection domain that claims of the present invention determines.
Claims (7)
1. a kind of unmanned plane can recover DC over-voltage protection circuit automatically, it is characterised in that：Compare including first comparator, second
Device, magnetic latching relay (Ka), contactor (KM) and reference power supply, first comparator and the second comparator all use model
The two-way comparator of LM193JG, reference voltage terminal pass through the 25th resistance (R25) and the 26th resistance (R26) group successively
Into divider resistance and the 27th resistance (R27) and the 21st capacitor (C21) composition RC delay circuits after with first
The first of comparator connects with phase pin (3), and the first reverse phase pin (2) and the first grounding pin (2) of first comparator are respectively
It is connected with the first of first comparator with phase pin (3), the 6th conducting wire is drawn in reference voltage terminal, the is in series on the 6th conducting wire
The divider resistance of 23 resistance (R23) and the 24th resistance (R24) composition, in the 23rd resistance (R23) and the 20th
The 9th conducting wire is drawn between four resistance (R24), the other end of the 9th conducting wire is connected with one end of the 30th resistance (R30), and the 3rd
The other end of ten resistance (R30) accesses the second of first comparator with phase pin (6) by the tenth conducting wire, is set on the tenth conducting wire
There are the 23rd capacitor (C23), the second grounding pin (5) access zero potential point (GND) of first comparator, first comparator
The first output pin (1) be connected by the 12nd conducting wire with the anode of the first diode (D1), the second of first comparator is anti-
It is connected to pin (7) by the tenth three wires with the anode of the second diode (D2), the cathode and second of the first diode (D1)
The 14th conducting wire, the other end and the 3rd diode of the 14th conducting wire are drawn at tie point after the cathode connection of diode (D2)
(D3) cathode connection, the anode of the 3rd diode (D3) are connected with the base stage of the first triode (Q1), the first triode (Q1)
Emitter access zero potential point (GND), the feeder ear of the collector of the first triode (Q1) and accumulator connects, accumulator
Second reversed pin (7) of the feeder ear also respectively with the first output pin of first comparator (1) and first comparator is connected, and stores
The feeder ear of battery and the second output pin (8) of first comparator connect, zero electricity of emitter access of the second triode (Q2)
The feeder ear of gesture point (GND), the collector of the second triode (Q2) and accumulator connects, the base stage of the second triode (Q2) and the
The cathode connection of four diodes (D4), the anode of the 4th diode (D4) and the first output pin (1 ') of the second comparator are even
Connect, between the anode and the second comparator of the 4th diode (D4) draw the 20th conducting wire, the other end of the 20th conducting wire with
The feeder ear connection of accumulator, reference voltage terminal form successively by the 21st resistance (R21) and the 22nd resistance (R22)
Divider resistance and the 34th resistance (R34) and the 24th capacitor (C24) composition RC delay circuits after with second ratio
First compared with device connects with phase pin (3 '), the first reverse phase pin (2 ') of the second comparator and the first same phase of the second comparator
Pin (3 ') connects, the first reverse phase pin (2 ') access zero potential point (GND) of the second comparator, and the first of the second comparator is anti-
The 27th capacitor (C27), the first grounding lead of the second comparator are provided between phase pin (2 ') and zero potential point (GND)
Foot (4 ') access zero potential point (GND), the feeder ear of the second output pin (8 ') access accumulator of the second comparator, the one or three
Magnetic latching relay (Ka) is installed, magnetic keeps relay between the collector of pole pipe (Q1) and the collector of the second triode (Q2)
The coil of device (Ka) is connected with the control terminal of contactor (KM), and the voltage input end of contactor (KM) is connected with reference voltage terminal.
2. unmanned plane according to claim 1 can recover DC over-voltage protection circuit automatically, it is characterised in that：The benchmark
Power supply includes reference voltage source, accumulator and multiple capacitors, the output terminal of accumulator and the input port of reference voltage source
(IN) connect, output port (OUT) the access reference voltage terminal of reference voltage source, the ground terminal access zero potential of reference voltage source
Point (GND), be parallel between the input port (IN) of reference voltage source and zero potential point (GND) the 18th capacitor (C18) and
19th capacitor (C19) is provided with the 20th electricity between the output port (OUT) of reference voltage source and zero potential point (GND)
Container (C20).
3. unmanned plane according to claim 2 can recover DC over-voltage protection circuit automatically, it is characterised in that：The benchmark
Voltage source selects the reference voltage source of the model AD586SQ of AD companies production.
4. unmanned plane according to claim 1 can recover DC over-voltage protection circuit automatically, it is characterised in that：Described 3rd
Diode (D3) and the 4th diode (D4) are all zener diode.
5. unmanned plane according to claim 1 can recover DC over-voltage protection circuit automatically, it is characterised in that：Described second
One end of 15 resistance (R25) is connected by the first conducting wire with reference voltage terminal, and the other end of the 25th resistance (R25) passes through
Second conducting wire is connected with one end of the 26th resistance (R26), and the other end of the 26th resistance (R26) is connect by privates
Enter zero potential point (GND), privates, the other end of privates and the 27th resistance (R27) are drawn on the second conducting wire
One end connection, the other end of the 27th resistance (R27) accesses the first of first comparator with phase pin by the 5th conducting wire
(3), the 21st capacitor (C21) is provided between privates and privates.
6. unmanned plane according to claim 1 can recover DC over-voltage protection circuit automatically, it is characterised in that：Described second
One end of 11 resistance (R21) is connected by the 21st conducting wire with reference voltage terminal, the other end of the 21st resistance (R21)
It is connected by the 22nd conducting wire with one end of the 22nd resistance (R22), the other end access zero of the 22nd resistance (R22)
Potential point (GND) draws the 20th three wires, the other end and the 34th resistance of the 20th three wires on the 22nd conducting wire
(R34) one end connection, the other end of the 34th resistance (R34) draw the 25th conducting wire, the 25th conducting wire it is another
It terminates into the second comparator first with phase pin (3 '), the 24th capacitor (C24) is provided on the 25th conducting wire,
The 26th conducting wire of extraction on the 24th conducting wire, the other end access zero potential point (GND) of the 26th conducting wire, the 20th
Seven capacitors (C27) are arranged on the 26th conducting wire.
7. unmanned plane according to claim 1 can recover DC over-voltage protection circuit automatically, it is characterised in that：The electric power storage
The feeder ear output voltage in pond is 28V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610460725.8A CN105977908B (en) | 2016-06-21 | 2016-06-21 | Unmanned plane can recover DC over-voltage protection circuit automatically |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610460725.8A CN105977908B (en) | 2016-06-21 | 2016-06-21 | Unmanned plane can recover DC over-voltage protection circuit automatically |
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| Publication Number | Publication Date |
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| CN105977908A CN105977908A (en) | 2016-09-28 |
| CN105977908B true CN105977908B (en) | 2018-06-05 |
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|---|---|---|---|---|
| CN109309609B (en) * | 2017-07-27 | 2020-12-18 | 广州极飞科技有限公司 | Data processing method and device for unmanned aerial vehicle |
| CN109361252A (en) * | 2018-12-12 | 2019-02-19 | 深圳市道通智能航空技术有限公司 | A kind of protection circuit, battery and aircraft |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102377172A (en) * | 2011-10-28 | 2012-03-14 | 深圳市星龙科技有限公司 | Three-phase program controlled power source and power amplifier tube short-circuiting protective circuit thereof |
| CN203014340U (en) * | 2012-11-05 | 2013-06-19 | 厦门盈瑞丰电子科技有限公司 | Self-recovery over-voltage/under-voltage protector |
| CN103311884A (en) * | 2013-04-23 | 2013-09-18 | 上海良信电器股份有限公司 | Non-stick overvoltage and under-voltage protector with leakage protection function |
| CN203326551U (en) * | 2013-01-23 | 2013-12-04 | 陆继明 | Magnetic latching non-stick over-voltage and under-voltage protector |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6600239B2 (en) * | 2001-03-22 | 2003-07-29 | Hewlett-Packard Development Company, L.P. | Active circuit protection for switched power supply system |
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2016
- 2016-06-21 CN CN201610460725.8A patent/CN105977908B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102377172A (en) * | 2011-10-28 | 2012-03-14 | 深圳市星龙科技有限公司 | Three-phase program controlled power source and power amplifier tube short-circuiting protective circuit thereof |
| CN203014340U (en) * | 2012-11-05 | 2013-06-19 | 厦门盈瑞丰电子科技有限公司 | Self-recovery over-voltage/under-voltage protector |
| CN203326551U (en) * | 2013-01-23 | 2013-12-04 | 陆继明 | Magnetic latching non-stick over-voltage and under-voltage protector |
| CN103311884A (en) * | 2013-04-23 | 2013-09-18 | 上海良信电器股份有限公司 | Non-stick overvoltage and under-voltage protector with leakage protection function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105977908A (en) | 2016-09-28 |
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