CN106992597A - One kind concentrates battery-type emergency power supply output abnormality signal fast processing circuit - Google Patents
One kind concentrates battery-type emergency power supply output abnormality signal fast processing circuit Download PDFInfo
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- CN106992597A CN106992597A CN201710365166.7A CN201710365166A CN106992597A CN 106992597 A CN106992597 A CN 106992597A CN 201710365166 A CN201710365166 A CN 201710365166A CN 106992597 A CN106992597 A CN 106992597A
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- power supply
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Classifications
-
- 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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K7/22—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a non-linear resistance, e.g. thermistor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
- G01R19/16571—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing AC or DC current with one threshold, e.g. load current, over-current, surge current or fault current
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
Abstract
Battery-type emergency power supply output abnormality signal fast processing circuit is concentrated the invention discloses one kind, including：Overcurrent detection circuit, module temperature detection circuit, module fault detecting circuit and fault-signal process circuit；The overcurrent detection circuit, module temperature detection circuit, module fault detecting circuit are electrically connected with fault-signal process circuit respectively；Method of the concentration battery-type emergency power supply output abnormality signal fast processing circuit of the present invention by setting hardware detecting circuit and signal processing circuit; improve the processing speed of inverter output abnormality; reduce processing time; fault-signal produces clear and definite in time; the abnormal protective value for concentrating battery-type emergency power supply is substantially increased, with higher practical value and wide application prospect.
Description
Technical field
The present invention relates to emergency power supply protection technique field, and in particular to one kind concentrates the output of battery-type emergency power supply different
Regular signal fast processing circuit.
Background technology
Battery-type emergency power supply is concentrated to be widely used as conventional electronic devices in architectural electricity, industrial trade,
Especially in some developed areas such as Suzhou, Xiamen etc., will battery-type emergency power supply be concentrated to be used as routine building
Electrically, design is in building's electrical design drawing, and country has formulated series of standards for emergency power supply product, such as：GB
16806-2006《Fire-fighting linkage control system》、GB17945-2010《Fire emergency and evacuation indication system》、JG/
T371-2012《Centralized battery emergency power supply unit》Deng the promotion emergency power supply development of, these product standards effectively with should
With.
Concentrating the basic functional principle of battery-type emergency power supply is：When line voltage is working properly, all the way to charging
Module charges to the batteries in emergency power supply.Change-over switch powering load is passed through on another road, that is to say, that power network
When voltage power supply is normal, load directly uses electric network source.When line voltage exception or power down, system automatically switches to battery
Backup pattern, it is ensured that the emergency service of load, this principle form is also referred to as backup type emergency power supply.
Present every profession and trade important step is all designed with concentration battery-type emergency power supply system, concentrates battery-type to answer urgent telegram
Source uses inversion transformation technique, and the direct current energy of battery is reverse into AC energy, and there is provided meet an urgent need load such as to exchange：Emergency lighting
Lamp, exit signs light fixture and fire pump etc. are used.
In the emergency power supply course of work, power board constantly gathers the numerical value of inverter output voltage, electric current, on the one hand
According to inverter output voltage, current sample numerical value, analytic operation is carried out, the purpose of the stabilization of control inverter output voltage is reached.
On the one hand constantly detection emergency power supply whether excessively stream, whether power tube IGBT normal, and whether detection module temperature normal etc., if
Note abnormalities, shut down in time or current limliting.
Existing guard method, general acquisition module status signal, output current, temperature etc. carry out signal modulation, control
Plate is AD converted, and becomes data signal, carries out digital judgement, therefore processing speed is slower, and failure occurs to deposit to Failure elimination
In time interval, and the abnormal influence to power supply or load of output voltage, output current, temperature is critically important, therefore how to set
New detection circuit is counted out, just especially seems important to improve conversion speed.
The content of the invention
In view of the shortcomings of the prior art, concentrate battery-type emergency power supply output abnormality signal fast the invention provides one kind
Fast process circuit, the method for the abnormal signal fast processing circuit by setting hardware detecting circuit and signal processing circuit, is carried
The high processing speed of inverter output abnormality, reduces processing time, and fault-signal produces clear and definite in time, substantially increases
The abnormal protective value of battery-type emergency power supply is concentrated, with higher practical value and wide application prospect.
The present invention solves technical problem and adopted the following technical scheme that：
One kind concentrates battery-type emergency power supply output abnormality signal fast processing circuit, including：
Overcurrent detection circuit, module temperature detection circuit, module fault detecting circuit and fault-signal process circuit；It is described
Overcurrent detection circuit, module temperature detection circuit, module fault detecting circuit are electrically connected with fault-signal process circuit respectively
Connect；
The overcurrent detection circuit includes Hall current sensor, the first discharge circuit, the second discharge circuit, the first electricity
Resistance, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance,
One diode, the second diode；The Hall current sensor draws including the first pin, second pin, the 3rd pin, the 4th
Pin, first pin connects+15V voltages, and second pin connects -15V voltages；3rd pin respectively with first resistor, the 4th
Resistance is connected, and the 4th pin is connected and is grounded with 3rd resistor；The 3rd resistor other end and the first discharge circuit are same
Phase input is connected；The inverting input connection of the first discharge circuit of another termination of first resistor；The second resistance and
Inverting input of first diode cathode jointly with the first discharge circuit is connected；The second resistance other end and the two or two pole
Pipe positive pole is connected, and the output of the second diode cathode and the first diode cathode jointly with the first discharge circuit is connected；Institute
The other end of the 5th resistance and the other end of the 4th resistance are stated commonly through the 6th resistance and the anti-phase input of the second discharge circuit
End the 7th resistance one of connection terminates+4V voltages, and the other end is connected with the second discharge circuit in-phase input end；8th resistance one
The second amplifier inverting input is terminated, the other end and the 9th resistance access the second discharge circuit output end jointly；9th resistance is another
One end is connected with fault-signal process circuit；
Module temperature detection circuit includes the first thermistor, the 3rd discharge circuit, the tenth resistance, the 11st resistance, the
12 resistance, the 13rd resistance, the 14th resistance, the 15th resistance, the 16th resistance；Described thermistor one end and the tenth electricity
Resistance one end connects+5V voltages jointly, and the thermistor other end is connected with the 11st resistance, the 12nd resistance one end respectively；11st
The resistance other end is connected with the in-phase input end of the 3rd discharge circuit；The other end of 12nd resistance and one end of the 13rd resistance
Common ground；The 13rd resistance other end is connected by the 14th resistance with the inverting input of the 3rd discharge circuit；15th
Resistance two ends are connected with the 3rd amplifier inverting input, output end respectively；16th resistance one end connects with the 3rd amplifier output end
Connect, the other end is connected with fault-signal process circuit；
The functional circuit that the module fault detecting circuit carries for power model in emergency power supply, when power model is normal,
Fault-signal is equivalent to open circuit；When power model is abnormal, fault-signal is equivalent to short circuit；The module fault detecting circuit bag
The 17th resistance is included, the 17th resistance one terminates+5V voltages, and the other end is both with fault-signal process circuit further through power
Module failure signal control is connected to the ground；
The fault-signal process circuit be with gate circuit device, including first input end, the second input, the 3rd input,
4th input；First input end is connected with the 9th resistance, and the second input is connected with the 16th resistance, the 3rd input and
17 resistance are connected, the 4th input termination+5V voltages.
Preferably, described is CD4082 and gate device with gate circuit device.
Preferably, the module temperature, which detects that the specification selection standard of thermistor in circuit need to be met, is less than temperature
At 100 DEG C, the 16th resistance output high level；When temperature is more than 100 DEG C, the 16th resistance output low level.
Preferably, fault-signal directly can be transferred to concentration battery-type by the fault-signal process circuit output end
The control chip of emergency power supply.
Preferably, the overcurrent detection circuit exports low level signal in overcurrent, is exported when electric current is normal
High level signal；The module temperature detection circuit exports high level signal when temperature is less than 100 DEG C, and temperature is more than 100 DEG C
When, export low level signal；The module fault detecting circuit carry power model it is normal when export high level signal, power model
Low level signal is exported when abnormal.
Compared with prior art, the present invention has following beneficial effect：
（1）The a kind of of the present invention concentrates battery-type emergency power supply output abnormality signal fast processing circuit to pass through newly-designed electricity
Flow through current detection circuit, module temperature detection circuit, module fault detecting circuit, can by over-current signal, temperature anomaly signal,
Module failure signal is directly exported in low and high level form, it is to avoid analog signal of the prior art is converted into data signal
Process, greatlys save the time；On the other hand each detection signal can believe final failure by fault-signal process circuit
Number control chip is transmitted directly to, can at once be handled, reduce processing time, improve power supply response speed.
（2）The a kind of of the present invention concentrates battery-type emergency power supply output abnormality signal fast processing circuit hard by setting
The method that part detects circuit and signal processing circuit, improves the processing speed of inverter output abnormality, when reducing processing
Between, fault-signal produce in time it is clear and definite, substantially increase concentrate battery-type emergency power supply abnormal protective value, with compared with
High practical value and wide application prospect.
Brief description of the drawings
By reading the detailed description made with reference to the following drawings to non-limiting example, further feature of the invention,
Objects and advantages will become more apparent upon：
Fig. 1 concentrates overcurrent in battery-type emergency power supply output abnormality signal fast processing circuit to examine for a kind of of the present invention
The schematic diagram of slowdown monitoring circuit；
Fig. 2 concentrates module temperature in battery-type emergency power supply output abnormality signal fast processing circuit to examine for a kind of of the present invention
The schematic diagram of slowdown monitoring circuit；
Fig. 3 concentrates module failure in battery-type emergency power supply output abnormality signal fast processing circuit to examine for a kind of of the present invention
The schematic diagram of slowdown monitoring circuit；
Fig. 4 is concentrated in battery-type emergency power supply output abnormality signal fast processing circuit at fault-signal for a kind of of the present invention
Manage the schematic diagram of circuit.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
As Figure 1-4, a kind of concentration battery-type emergency power supply output abnormality signal is provided in the present embodiment quick
Process circuit, including：
Overcurrent detection circuit, module temperature detection circuit, module fault detecting circuit and fault-signal process circuit；It is described
Overcurrent detection circuit, module temperature detection circuit, module fault detecting circuit are electrically connected with fault-signal process circuit respectively
Connect；
Overcurrent detection circuit includes Hall current sensor, the first discharge circuit LM1, the second discharge circuit LM2, the
One resistance R1, second resistance R2,3rd resistor R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7,
Eight resistance R8, the 9th resistance R9, the first diode D1, the second diode D2；The Hall current sensor include the first pin,
Second pin, the 3rd pin, the 4th pin, first pin connect+15V voltages, and second pin connects -15V voltages；Described 3rd
Pin is connected with first resistor R1, the 4th resistance R4 respectively, and the 4th pin is connected and is grounded with 3rd resistor R3；Described
The three resistance R3 other ends are connected with the first discharge circuit LM1 in-phase input ends；The first amplifier of another terminations of first resistor R1
Circuit LM1 inverting input connection；The second resistance R2 and the first diode D1 negative poles jointly with the first discharge circuit LM1
Inverting input connection；The second resistance R2 other ends are connected with the second diode D2 positive poles, the second diode D2
The output of negative pole and the first diode D1 positive poles jointly with the first discharge circuit LM1 is connected；The other end of the 5th resistance R5
The 7th electricity is connected with the second discharge circuit LM2 inverting input commonly through the 6th resistance R6 with the 4th resistance R4 other end
Resistance R7 mono- terminates+4V voltages, and the other end is connected with the second discharge circuit LM2 in-phase input ends；The 8th resistance R8 mono- is terminated
Second amplifier LM2 inverting inputs, the other end and the 9th resistance R9 access the second discharge circuit LM2 output ends jointly；9th electricity
The resistance R9 other ends are connected with fault-signal process circuit；
The module temperature detection circuit includes the first thermistor RT, the 3rd discharge circuit LM3, the tenth resistance R10, the 11st
Resistance R11, the 12nd resistance R12, the 13rd resistance R13, the 14th resistance R14, the 15th resistance R15, the 16th resistance
R16；Described thermistor RT one end and the tenth resistance R10 one end connect+5V voltages jointly, and the thermistor RT other ends are respectively with the
11 resistance R11, the connection of the 12nd resistance R12 one end；The same phase of the 11st resistance R11 other ends and the 3rd discharge circuit LM3
Input is connected；The 12nd resistance R12 other end and the 13rd resistance R13 one end common ground；13rd resistance R13 is another
One end is connected by the 14th resistance R14 with the 3rd discharge circuit LM3 inverting input；Distinguish at 15th resistance R15 two ends
It is connected with the 3rd amplifier LM3 inverting inputs, output end；16th resistance R16 one end is connected with the 3rd amplifier LM3 output ends,
The other end is connected with fault-signal process circuit；
The functional circuit that the module fault detecting circuit carries for power model in emergency power supply, when power model is normal,
Fault-signal is equivalent to open circuit；When power model is abnormal, fault-signal is equivalent to short circuit；The module fault detecting circuit bag
The 17th resistance R17 is included, the 17th resistance R17 mono- terminates+5V voltages, and the other end is not only with fault-signal process circuit but also logical
The control of overpower module failure signal is connected to the ground；
The fault-signal process circuit be with gate circuit device, including first input end, the second input, the 3rd input,
4th input；First input end is connected with the 9th resistance R9, i.e., be connected with U1out, the second input and the 16th resistance R16
Connection, i.e., be connected, the 3rd input is connected with the 17th resistance R17, i.e., be connected with U3out with U2out, and the 4th input termination+
5V voltages.
In the present embodiment with gate circuit device be CD4082 and gate device.
Module temperature, which detects that the specification selection standard of thermistor RT in circuit need to be met, in the present embodiment is less than temperature
At 100 DEG C, the 16th resistance R16 output high level；When temperature is more than 100 DEG C, the 16th resistance R16 output low levels.
Fault-signal directly can be transferred to concentration battery-type by fault-signal process circuit output end in the present embodiment
The control chip of emergency power supply.
Overcurrent detection circuit exports low level signal in overcurrent in the present embodiment, exports high when electric current is normal
Level signal；The module temperature detection circuit exports high level signal when temperature is less than 100 DEG C, and temperature is more than 100 DEG C
When, export low level signal；The module fault detecting circuit carry power model it is normal when export high level signal, power model
Low level signal is exported when abnormal.
The a kind of of the present invention concentrates battery-type emergency power supply output abnormality signal fast processing circuit by setting hardware
The method for detecting circuit and signal processing circuit, improves the processing speed of inverter output abnormality, reduces processing time,
Fault-signal generation is clear and definite in time, the abnormal protective value for concentrating battery-type emergency power supply is substantially increased, with higher
Practical value and wide application prospect.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the claim involved by limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It may be appreciated other embodiment.
Claims (5)
1. one kind concentrates battery-type emergency power supply output abnormality signal fast processing circuit, it is characterised in that including：Electric current mistake
Current detection circuit, module temperature detection circuit, module fault detecting circuit and fault-signal process circuit；The overcurrent inspection
Slowdown monitoring circuit, module temperature detection circuit, module fault detecting circuit are electrically connected with fault-signal process circuit respectively；
The overcurrent detection circuit includes Hall current sensor, the first discharge circuit, the second discharge circuit, the first electricity
Resistance, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance,
One diode, the second diode；The Hall current sensor draws including the first pin, second pin, the 3rd pin, the 4th
Pin, first pin connects+15V voltages, and second pin connects -15V voltages；3rd pin respectively with first resistor, the 4th
Resistance is connected, and the 4th pin is connected and is grounded with 3rd resistor；The 3rd resistor other end and the first discharge circuit are same
Phase input is connected；The inverting input connection of the first discharge circuit of another termination of first resistor；The second resistance and
Inverting input of first diode cathode jointly with the first discharge circuit is connected；The second resistance other end and the two or two pole
Pipe positive pole is connected, and the output of the second diode cathode and the first diode cathode jointly with the first discharge circuit is connected；Institute
The other end of the 5th resistance and the other end of the 4th resistance are stated commonly through the 6th resistance and the anti-phase input of the second discharge circuit
End the 7th resistance one of connection terminates+4V voltages, and the other end is connected with the second discharge circuit in-phase input end；8th resistance one
The second amplifier inverting input is terminated, the other end and the 9th resistance access the second discharge circuit output end jointly；9th resistance is another
One end is connected with fault-signal process circuit；
Module temperature detection circuit includes the first thermistor, the 3rd discharge circuit, the tenth resistance, the 11st resistance, the
12 resistance, the 13rd resistance, the 14th resistance, the 15th resistance, the 16th resistance；Described thermistor one end and the tenth electricity
Resistance one end connects+5V voltages jointly, and the thermistor other end is connected with the 11st resistance, the 12nd resistance one end respectively；11st
The resistance other end is connected with the in-phase input end of the 3rd discharge circuit；The other end of 12nd resistance and one end of the 13rd resistance
Common ground；The 13rd resistance other end is connected by the 14th resistance with the inverting input of the 3rd discharge circuit；15th
Resistance two ends are connected with the 3rd amplifier inverting input, output end respectively；16th resistance one end connects with the 3rd amplifier output end
Connect, the other end is connected with fault-signal process circuit；
The functional circuit that the module fault detecting circuit carries for power model in emergency power supply, when power model is normal,
Fault-signal is equivalent to open circuit；When power model is abnormal, fault-signal is equivalent to short circuit；The module fault detecting circuit bag
The 17th resistance is included, the 17th resistance one terminates+5V voltages, and the other end is both with fault-signal process circuit further through power
Module failure signal control is connected to the ground；
The fault-signal process circuit be with gate circuit device, including first input end, the second input, the 3rd input,
4th input；First input end is connected with the 9th resistance, and the second input is connected with the 16th resistance, the 3rd input and
17 resistance are connected, the 4th input termination+5V voltages.
2. concentration battery-type emergency power supply output abnormality signal fast processing circuit according to claim 1, its feature
It is, described is CD4082 and gate device with gate circuit device.
3. a kind of concentration battery-type emergency power supply output abnormality signal fast processing circuit according to claim 1, its
It is characterised by, the specification selection standard of thermistor need to be met when the temperature is less than 100 DEG C in module temperature detection circuit,
16th resistance exports high level；When temperature is more than 100 DEG C, the 16th resistance output low level.
4. a kind of concentration battery-type emergency power supply output abnormality signal fast processing circuit according to claim 1, its
It is characterised by, fault-signal directly can be transferred to concentration battery-type and answer urgent telegram by the fault-signal process circuit output end
The control chip in source.
5. a kind of concentration battery-type emergency power supply output abnormality signal fast processing circuit according to claim 1, its
It is characterised by, the overcurrent detection circuit exports low level signal in overcurrent, and high level is exported when electric current is normal
Signal；The module temperature detection circuit exports high level signal when temperature is less than 100 DEG C, defeated when temperature is more than 100 DEG C
Go out low level signal；The module fault detecting circuit carry power model it is normal when export high level signal, power model is abnormal
When export low level signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710365166.7A CN106992597A (en) | 2017-05-22 | 2017-05-22 | One kind concentrates battery-type emergency power supply output abnormality signal fast processing circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710365166.7A CN106992597A (en) | 2017-05-22 | 2017-05-22 | One kind concentrates battery-type emergency power supply output abnormality signal fast processing circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106992597A true CN106992597A (en) | 2017-07-28 |
Family
ID=59419638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710365166.7A Withdrawn CN106992597A (en) | 2017-05-22 | 2017-05-22 | One kind concentrates battery-type emergency power supply output abnormality signal fast processing circuit |
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| CN (1) | CN106992597A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108768380A (en) * | 2018-08-24 | 2018-11-06 | 唐智科技湖南发展有限公司 | A kind of modulate circuit of sensor |
| CN111665408A (en) * | 2020-06-16 | 2020-09-15 | 河南里程碑科技有限公司 | High-protection distribution box fault detection method and device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2552008Y (en) * | 2002-01-21 | 2003-05-21 | 丰叶电器制造厂有限公司 | Alarm |
| CN204859713U (en) * | 2015-08-31 | 2015-12-09 | 江苏银佳企业集团有限公司 | Centrally connected power source centralized control type illumination lamps and lanterns |
| CN106026010A (en) * | 2016-07-20 | 2016-10-12 | 合肥联信电源有限公司 | Over-current protection system for emergency power supply |
-
2017
- 2017-05-22 CN CN201710365166.7A patent/CN106992597A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2552008Y (en) * | 2002-01-21 | 2003-05-21 | 丰叶电器制造厂有限公司 | Alarm |
| CN204859713U (en) * | 2015-08-31 | 2015-12-09 | 江苏银佳企业集团有限公司 | Centrally connected power source centralized control type illumination lamps and lanterns |
| CN106026010A (en) * | 2016-07-20 | 2016-10-12 | 合肥联信电源有限公司 | Over-current protection system for emergency power supply |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108768380A (en) * | 2018-08-24 | 2018-11-06 | 唐智科技湖南发展有限公司 | A kind of modulate circuit of sensor |
| CN108768380B (en) * | 2018-08-24 | 2023-10-13 | 唐智科技湖南发展有限公司 | Conditioning circuit of sensor |
| CN111665408A (en) * | 2020-06-16 | 2020-09-15 | 河南里程碑科技有限公司 | High-protection distribution box fault detection method and device |
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Application publication date: 20170728 |