CN208707545U - A kind of load power source circuit with alarm - Google Patents
A kind of load power source circuit with alarm Download PDFInfo
- Publication number
- CN208707545U CN208707545U CN201821608332.8U CN201821608332U CN208707545U CN 208707545 U CN208707545 U CN 208707545U CN 201821608332 U CN201821608332 U CN 201821608332U CN 208707545 U CN208707545 U CN 208707545U
- Authority
- CN
- China
- Prior art keywords
- circuit
- alarm
- npn triode
- load
- power source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Abstract
The utility model relates to field of circuit technology, a kind of particularly load power source circuit with alarm.The utility model discloses a kind of load power source circuits with alarm, including separate AC/DC switching power circuit, detection circuit and alarm driving circuit, the secondary output circuit of the separate AC/DC switching power circuit is load supplying, the secondary second level output circuit of the separate AC/DC switching power circuit is alarm power supply by alarm driving circuit, the detection circuit is used to detect the quality of load, the control signal of the output end of detection circuit device driving circuit taking alarm.The alarm and one separate AC of load sharing/DC switching power circuit of the utility model, circuit structure is simple, small in size, at low cost, easy to use, high reliablity.
Description
Technical field
The utility model belongs to field of circuit technology, more particularly to a kind of load power source circuit with alarm.
Background technique
In many application scenarios, the working condition of load can all be monitored in real time, when load goes wrong nothing
When method works, it will be alarmed by alarm, to notify related personnel to be handled in time.Such as the illuminating LED lamp of subway,
It will be equipped with corresponding alarm, when illuminating LED lamp damage, alarm is alarmed, to notify that it is timely that related personnel carries out
Processing.Existing illuminating LED lamp is separated with the power supply of alarm, i.e., illuminating LED lamp uses a power circuit, alarm
Using another power circuit, cause power circuit more, at high cost, volume is larger, inconvenient for use.
Summary of the invention
The purpose of this utility model is to provide a kind of load power source circuits with alarm to solve above-mentioned presence
The problem of.
To achieve the above object, a kind of the technical solution adopted in the utility model are as follows: load power source electricity with alarm
Road, including separate AC/DC switching power circuit, detection circuit and alarm driving circuit, the separate AC/DC switch electricity
The secondary output circuit of source circuit is load supplying, and the secondary second level output circuit of the separate AC/DC switching power circuit is logical
Cross alarm driving circuit for alarm power supply, the detection circuit be used for detect load quality, the detection circuit it is defeated
The control signal of outlet device driving circuit taking alarm.
Further, the load is LED light, and the LED light connects between the positive and negative terminal of secondary output circuit, described time
The negativing ending grounding of grade output circuit.
Further, the detection circuit and alarm driving circuit include diode D6, NPN triode Q3 and NPN
The collector series connection alarm of triode Q4, the NPN triode Q4 connect time anode of second level output circuit, tri- pole NPN
The emitter of pipe Q4 is grounded, and the base series resistor R22 of the NPN triode Q4 connects the collector of NPN triode Q3, described
The base stage of NPN triode Q4 passes through capacitor C12 and resistance R23 ground connection in parallel, the collector string of the NPN triode Q3 simultaneously
Connection resistance R21 connects time anode of second level output circuit, and the emitter of the NPN triode Q3 is grounded, the NPN triode Q3's
Base series resistor R19 connects the anode of diode D6, and the diode D6 is serially connected between LED light and ground, the NPN triode
The base stage of Q3 also series resistance R20 ground connection.
Further, the alarm includes buzzer B1.
Further, the alarm further includes LED light D7, and the LED light D7 is in parallel with buzzer B1.
It further, further include LED light D8, the LED light D8 series resistance R26 connects the anode in secondary second level output circuit
Between ground.
It further, further include constant voltage circuit, the secondary second level output circuit passes through alarm again after voltage regulator circuit
Driving circuit is alarm power supply.
Further, the voltage regulator circuit includes resistance R18, capacitor C9, voltage-stabiliser tube DZ1 and NPN triode Q2, described
The collector of NPN triode Q2 meets time anode of second level output circuit, the negativing ending grounding of secondary second level output circuit, the NPN tri-
The base stage of pole pipe Q2 connects the negative terminal of voltage-stabiliser tube DZ1, the positive ending grounding of the voltage-stabiliser tube DZ1, one end series electrical of the capacitor C9
Resistance R18 connects time anode of second level output circuit, the second end ground connection of the capacitor C9, and the emitter of the NPN triode Q2 leads to
Alarm driving circuit is crossed as alarm power supply.
Further, the separate AC/DC switching power circuit includes rectification circuit, constant-current control circuit and transformer
Isolation circuit, the constant-current control circuit are realized by the chip U1 of model AL1692.
The advantageous effects of the utility model:
The alarm and one separate AC of load sharing/DC switching power circuit of the utility model, can be by alarm
It being integrated in the power supply of load, circuit structure is simple, and it is small in size, it is at low cost, it is easy to use.And load and alarm all with alternating current
No danger of electric shock, high reliablity is isolated.
Detailed description of the invention
Fig. 1 is the power principle figure of the utility model specific embodiment.
Specific embodiment
Now in conjunction with the drawings and specific embodiments, the present invention will be further described.
As shown in Figure 1, a kind of load power source circuit with alarm, including it is separate AC/DC switching power circuit, steady
Volt circuit, detection circuit and alarm driving circuit, the input of the separate AC/DC switching power circuit terminate alternating current, institute
Stating the secondary output circuit of separate AC/DC switching power circuit is load supplying, the separate AC/DC switching power circuit
Secondary second level output circuit by alarm driving circuit be again that alarm is powered after voltage regulator circuit pressure stabilizing, the detection is electric
Road is used to detect the quality of load, the control signal of the output end of detection circuit device driving circuit taking alarm.
In this specific embodiment, load illustrates that but it is not limited to this by taking LED light as an example, in other embodiments, load
It is also possible to exhaust fan, electric fan etc., this is that those skilled in the art can realize easily, is no longer described in detail.
In this specific embodiment, the separate AC/DC switching power circuit include rectification circuit, constant-current control circuit and
Transformer isolation circuit, the constant-current control circuit are realized that physical circuit is detailed in Fig. 1 by the chip U1 of model AL1692,
This is no longer described in detail.Certainly, in other embodiments, separate AC/DC switching power circuit can also using it is existing it is other every
From formula AC/DC switching power circuit, this is that those skilled in the art can realize easily, is no longer described in detail.
In this specific embodiment, secondary output circuit include secondary windings, rectifier diode D5, resistance R15, resistance R16,
Capacitor C8 and capacitor C10, physical circuit connection relationship are detailed in Fig. 1, this is no longer described in detail.
The anode of LED light connects the anode LED+ of secondary output circuit, the negative terminal V- ground connection of the secondary output circuit.
In this specific embodiment, secondary second level output circuit includes time second level winding, rectifier diode D4, resistance R17 and electricity
Hold C7, physical circuit connection relationship is detailed in Fig. 1, this is no longer described in detail.
In this specific embodiment, the detection circuit and alarm driving circuit include diode D6, NPN triode Q3 and
NPN triode Q4, the voltage regulator circuit include resistance R18, capacitor C9, voltage-stabiliser tube DZ1 and NPN triode Q2.
The collector of the NPN triode Q2 connects the negative terminal (anode of secondary second level output circuit) of rectifier diode D4, secondary
The negative terminal V- of second level output circuit is grounded, and the base stage of the NPN triode Q2 meets the negative terminal of voltage-stabiliser tube DZ1, the voltage-stabiliser tube DZ1
Positive ending grounding, one end series resistance R18 of the capacitor C9 connects the negative terminal of diode D4, the second termination of the capacitor C9
Ground.
The collector series connection alarm of the NPN triode Q4 connects the emitter of NPN triode Q2, the NPN triode
The emitter of Q4 is grounded, and the base series resistor R22 of the NPN triode Q4 meets the collector of NPN triode Q3, the NPN
The base stage of triode Q4 passes through capacitor C12 and resistance R23 ground connection in parallel, the collector series connection of the NPN triode Q3 simultaneously
Resistance R21 connects the emitter of NPN triode Q2, the emitter ground connection of the NPN triode Q3, the base of the NPN triode Q3
Pole series resistance R19 connects the anode of diode D6, and the diode D6 is serially connected between LED light and ground, i.e. diode D6 is just
The cathode LED- of LED light is terminated, the base stage also series resistance R20 of the negativing ending grounding of diode D6, the NPN triode Q3 connects
Ground.Certainly, in other embodiments, detection circuit and alarm driving circuit can also use existing other circuits, as long as
When being able to achieve LED light normal work, alarm driving circuit is closed, when LED light damages no current, the conducting of alarm driving circuit
, this is that those skilled in the art can realize easily, is no longer described in detail.
In this specific embodiment, the alarm includes buzzer B1, and the buzzer B1 is preferably 0905 electromagnetic type one
Body buzzer, to carry out audible alarm.
Further, in the present embodiment, the alarm further includes LED light D7, and the LED light D7 and buzzer B1 are simultaneously
Connection, LED light D7 is preferably yellow light LED lamp, but not limited to this, LED light D7 be used for while carrying out audible alarm, bright orange light into
The alarm of row light, double shield.
It further, further include LED light D8 in the present embodiment, the LED light D8 series resistance R26 connects in NPN triode
Between the emitter and ground of Q2, whether for having electricity output to prompt secondary second level output circuit, LED light D8 is preferably red
LED light, but it is not limited to this.
The course of work:
Alternating current is powered by the secondary output circuit of separate AC/DC switching power circuit to LED light, and LED light work is driven
Make, when LED light works normally, NPN triode Q3 conducting, NPN triode Q4 is disconnected, and alarm does not work；When LED light is damaged
Bad, when not having electric current, NPN triode Q3 is disconnected, and NPN triode Q4 conducting, alarm work carries out buzzing and bright orange light, is reminded
Maintenance personal is safeguarded in time.
The alarm and one separate AC of load sharing/DC switching power circuit of the utility model, can be by alarm
It being integrated in the power supply of load, circuit structure is simple, and it is small in size, it is at low cost, it is easy to use.And load and alarm all with alternating current
No danger of electric shock, high reliablity is isolated.
Although specifically showing and describing the utility model in conjunction with preferred embodiment, those skilled in the art is answered
This is understood, in the spirit and scope for not departing from the utility model defined by the appended claims, in form and details
On the utility model can be made a variety of changes, be the protection scope of the utility model.
Claims (9)
1. a kind of load power source circuit with alarm, it is characterised in that: including separate AC/DC switching power circuit, inspection
Slowdown monitoring circuit and alarm driving circuit, the secondary output circuit of the separate AC/DC switching power circuit are load supplying, institute
It is alarm power supply that the secondary second level output circuit of separate AC/DC switching power circuit, which is stated, by alarm driving circuit, described
Detection circuit is used to detect the quality of load, the control signal of the output end of detection circuit device driving circuit taking alarm.
2. the load power source circuit according to claim 1 with alarm, it is characterised in that: the load is LED light,
The LED light connects between the positive and negative terminal of secondary output circuit, the negativing ending grounding of the secondary output circuit.
3. the load power source circuit according to claim 2 with alarm, it is characterised in that: the detection circuit and report
Alert device driving circuit includes the collector series connection of diode D6, NPN triode Q3 and NPN triode Q4, the NPN triode Q4
Alarm connects time anode of second level output circuit, the emitter ground connection of the NPN triode Q4, the base of the NPN triode Q4
Pole series resistance R22 connects the collector of NPN triode Q3, and the base stage of the NPN triode Q4 passes through capacitor C12 in parallel simultaneously
It is grounded with resistance R23, the collector series resistance R21 of the NPN triode Q3 connects time anode of second level output circuit, described
The emitter of NPN triode Q3 is grounded, and the base series resistor R19 of the NPN triode Q3 connects the anode of diode D6, described
Diode D6 is serially connected between LED light and ground, the base stage of the NPN triode Q3 also series resistance R20 ground connection.
4. the load power source circuit according to claim 3 with alarm, it is characterised in that: the alarm includes bee
Ring device B1.
5. the load power source circuit according to claim 4 with alarm, it is characterised in that: the alarm further includes
LED light D7, the LED light D7 is in parallel with buzzer B1.
6. the load power source circuit according to claim 3 with alarm, it is characterised in that: further include LED light D8, institute
LED light D8 series resistance R26 is stated to connect between the anode and ground of secondary second level output circuit.
7. the load power source circuit according to claim 1 with alarm, it is characterised in that: it further include constant voltage circuit,
It is alarm power supply that the secondary second level output circuit passes through alarm driving circuit again after voltage regulator circuit.
8. the load power source circuit according to claim 7 with alarm, it is characterised in that: the voltage regulator circuit includes
Resistance R18, capacitor C9, voltage-stabiliser tube DZ1 and NPN triode Q2, the collector of the NPN triode Q2 connect time second level output circuit
Anode, the negativing ending grounding of secondary second level output circuit, the base stage of the NPN triode Q2 connects the negative terminal of voltage-stabiliser tube DZ1, described steady
The positive ending grounding of pressure pipe DZ1, one end series resistance R18 of the capacitor C9 connect time anode of second level output circuit, the capacitor
The second end of C9 is grounded, and the emitter of the NPN triode Q2 is alarm power supply by alarm driving circuit.
9. the load power source circuit according to claim 1 with alarm, it is characterised in that: the separate AC/DC
Switching power circuit includes rectification circuit, constant-current control circuit and transformer isolation circuit, and the constant-current control circuit is by model
It is realized for the chip U1 of AL1692.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821608332.8U CN208707545U (en) | 2018-09-30 | 2018-09-30 | A kind of load power source circuit with alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821608332.8U CN208707545U (en) | 2018-09-30 | 2018-09-30 | A kind of load power source circuit with alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208707545U true CN208707545U (en) | 2019-04-05 |
Family
ID=65947839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821608332.8U Active CN208707545U (en) | 2018-09-30 | 2018-09-30 | A kind of load power source circuit with alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208707545U (en) |
-
2018
- 2018-09-30 CN CN201821608332.8U patent/CN208707545U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206321697U (en) | A kind of over-voltage detection circuit and switching power circuit | |
| CN110474293A (en) | A kind of band detects automatically and the fire prevention of Self-resetting, earth leakage circuit-breaker and guard method | |
| CN208707545U (en) | A kind of load power source circuit with alarm | |
| CN209842877U (en) | Signal lamp fault detection circuit combining signal lamp and signal controller | |
| CN209517563U (en) | A kind of load power source circuit with alarm | |
| CN110165741A (en) | A kind of digital product charging alarm control circuit | |
| CN201590934U (en) | Ultraviolet lamp failure detection circuit and device | |
| CN214097740U (en) | N600 secondary circuit ground fault rapid detection circuit | |
| CN106255278B (en) | A kind of emergency LED lighting circuit with real time protection | |
| CN209182386U (en) | The airborne device looses power offline inspection circuit of direct current | |
| CN208094843U (en) | A kind of constant-current switch power source for LED light | |
| CN206684237U (en) | Power supply remote supervisory | |
| CN211267181U (en) | LED lamp circuit with emergency lighting function | |
| CN209432886U (en) | A kind of current detection circuit and current detecting system based on BUCK circuit | |
| CN209979756U (en) | ESD power supply linkage controller | |
| CN208571575U (en) | The over-pressure safety device of welding machine and its power input | |
| CN204536406U (en) | A kind of measuring device with electricity with live locking function | |
| CN110474292A (en) | A kind of band detects automatically and the earth leakage circuit-breaker of Self-resetting and guard method | |
| CN203399341U (en) | Novel LED lamp driving power supply | |
| CN109799412A (en) | A kind of ESD power supply linkage controller | |
| CN103855681B (en) | Light fixture open loop protection circuit | |
| CN216051918U (en) | Voltage tester | |
| CN112333880B (en) | Emergency lighting power supply circuit applied to LED lamp | |
| CN213689896U (en) | Novel driving power supply with grounding detection function | |
| CN208112211U (en) | A kind of over-voltage that low cost is practical detection protection circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |