CN2203018Y - Fully-automatic ac and dc fluorescent lamp - Google Patents

Fully-automatic ac and dc fluorescent lamp Download PDF

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Publication number
CN2203018Y
CN2203018Y CN 94218888 CN94218888U CN2203018Y CN 2203018 Y CN2203018 Y CN 2203018Y CN 94218888 CN94218888 CN 94218888 CN 94218888 U CN94218888 U CN 94218888U CN 2203018 Y CN2203018 Y CN 2203018Y
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China
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triode
circuit
resistance
link
operational amplifier
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Expired - Fee Related
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CN 94218888
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Chinese (zh)
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李平
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Individual
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Individual
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Abstract

The utility model relates to a fully automatic AC and DC fluorescent lamp, which comprises a lamp tube, a ballast and a transformer. The utility model also comprises a charging and discharging protection circuit which is composed of a power transformer, a bridge rectifier circuit PNP triode and an operational amplifier, a push-pull inversion circuit which is composed of a high frequency transformer and a triode, a fluorescent lamp circuit which is composed of a diode, a starter, the fluorescent lamp and the ballast, and a no load protective circuit which is composed of a relay and the lamp tube. The utility model can realize fully automatic switching between AC and DC and has the advantages of high speed, DC supply, long time of DC supply and long service life. The utility model can be used as a fluorescent lamp and an emergency lamp.

Description

Fully-automatic ac and dc fluorescent lamp
The utility model relates to a kind of fluorescent lamp, and especially a kind of AC/DC can be made the full-automatic AC/DC fluorescence lamp that emergency light uses.
At present, the report of known relevant emergency light is a lot, also there are similar products to sell on the market, but the circuit that they adopt has following shortcoming: the one, and emergent switching time is long, generally greater than 5 seconds, the 2nd, the emergency lighting continuous working period is short, is generally less than 30 minutes, and the 3rd, the magnitude of voltage that battery discharging ends is little, almost be similar to zero, the 4th, the emergency rating brightness value is little, and is general less than 50%, five of normal condition brightness value, movement working temperature height, generally about 80 ℃, the 6th, adopt the single-tube contravariant circuit, the single-ended easy blackout of fluorescent tube shortens lamp tube service life.
It is fast that the purpose of this utility model provides a kind of startup, and the direct current supply time is long, and luminous flux is big, and has the full-automatic AC/DC fluorescence lamp of storage battery charge and discharge protection device.
The purpose of this utility model is achieved in that
The utility model comprises fluorescent tube, ballast, transformer, it is characterized in that also comprising the charge and discharge protecting circuit of being made up of power transformer and bridge rectifier circuit, PNP triode, operational amplifier; Recommend the inversion circuit by what high frequency transformer, triode were formed; The fluorescent lamp circuit of forming by diode, starter, fluorescent lamp, ballast; By J 2-1, J 2-2, fluorescent tube and R 8, R 9The no-load protection circuit of forming.
The cathode output end of the bridge rectifier circuit in the charge protection circuit is leaded up to diode D 2, triode T 1, resistance R 2With protective tube FB 2End links, the other end of protective tube and storage battery E polyphone, and the negative pole of storage battery connects the cathode output end of bridge rectifier, another road of the cathode output end of bridge rectifier and triode D 1, resistance R 1Series connection back and triode T 2Base stage link to each other triode T 2Collector electrode one tunnel and triode T 3Base stage link to each other another road series resistance R 4Back and triode T 2Collector electrode links to each other, triode T 2Emitter and triode T 3Emitter link to each other and link to each other with the cathode output end of bridge rectifier circuit; Triode T 3Collector electrode with by diode D 4, capacitor C 2, relay J 1The parallel circuits series connection back of forming links to each other operational amplifier IC with K switch 1, IC 22,5 pin respectively with by resistance R 4, voltage-stabiliser tube D 11The voltage stabilizing circuit of forming links to each other, operational amplifier IC 1, IC 23,6 pin respectively with by resistance R 12, R 13And resistance R 10, R 11The divider resistance of forming links to each other, operational amplifier IC 11 pin pass through resistance R 15, voltage-stabiliser tube D 3With triode T 1Base stage link to each other IC 1Bear the charging overvoltage protection of battery; Operational amplifier IC 27 pin and diode D 12, resistance R 16Series connection back and controllable silicon T 7Trigger electrode link to each other controllable silicon T 7The other end of negative electrode and triode T 2Base stage link to each other controllable silicon T 7Anode tap and resistance R 3, switch J 2-4And power positive end links to each other operational amplifier IC 2Voltage protection when bearing battery discharge to limit use; Triode T 4Base stage is through resistance R 7Link to each other with the cathode output end of bridge rectifier, collector electrode with by diode D 3And relay J 2The parallel circuits of forming, K switch series connection back link to each other triode T with the electric current positive terminal 4Emitter link to each other with the output of bridge rectifier circuit.
At operational amplifier IC 27 pin and the inversion circuit between be provided with by resistance R 3, controllable silicon T 7And resistance R 6The self-locking circuit of forming.
The inversion circuit is by resistance R 8, R 9, triode T 5, T 6, high frequency transformer, high frequency retardation coil Z 2Form with fluorescent tube, at fluorescent tube J 2-3Have additional capacitor C between end and the high frequency transformer 3
Starter S serial connection diode D 10After be connected on fluorescent tube J 2-2With J 2-3Between the end.
But the utility model AC/DC, can directly be connected on the AC power, power of alterating and direct current is controlled a shared switch, and this lamp uses as common alternating-current fluorescent lamp usually, stop power supply as alternating current, electronic installation can be automatically converted to direct current supply in the light fixture in 0.5 second.Owing to adopt and to recommend the inversion circuit, so luminous flux is big during direct current supply, the power consumptive province, direct current supply can reach more than 5 hours, and brightness and time can be customized according to user's request.Recover as alternating current, this lamp also can automatically switch to Alternating Current Power Supply.This lamp covers maintenance free cell by full envelope to be provided DC power supply to be provided with the storage battery charge and discharge to detect protective device automatically, can improve storage battery useful life greatly.This lamp also can be lighted fluorescent lamp by starter under the interchange low-voltage state.Because this light fixture lead-out wire has only 4, so installation is very convenient.Therefore can be widely used in the low-voltage area and need illumination Anywhere, Patent equipment in the light fixture can extensively supportingly use in the decoration fluorescent lighting fixture of different size, the design of this light fixture can be alleviated the present power supply shortage of China, work to broad masses, the fire incident of using the naked light illumination to bring accidentally because of having a power failure is fundamentally stopped in the inconvenience that life brings.This lamp adopts the voltage detecting of dual operational amplifier as storage battery in addition, and it is impaired to guarantee that battery is difficult for, and charging circuit adopts the PNP triode to control its charging operating state inversion circuit employing auto-excitation type and recommends circuit, and it is simple in structure, must not debug.Starting circuit adopts electronic circuit, can light fluorescent lamp at 165V～250V alternating voltage scope internal starting.
Below in conjunction with drawings and Examples the utility model is further specified:
Fig. 1 is a circuit diagram of the present utility model.
The utility model comprises: 1. by a power transformer and bridge rectifier circuit, and PNP triode, the charge and discharge protecting circuit that operational amplifier is formed; 2. by high frequency transformer, the triode composition is recommended the inversion circuit; 3. by diode, starter, fluorescent lamp, ballast is formed the fluorescent lamp circuit.4. by J 2-1, J 2-2, fluorescent tube R 8, R 9The no-load protection circuit of forming.
This lamp is the center with the module, with minimum components and parts, and reasonably design, novel design makes it have perfect defencive function, and an amplifier is born the charging overvoltage protection of battery in this module, the protection when another amplifier is born battery discharge to limit working voltage.
When 220V imported, the alternating current of being exported by transformer passed through D behind over commutation 2, T 1, R 2Fuse FB 2To battery charge, another route D 1, R 1To T 2The base stage power supply descends this pipe conducting collector voltage.So T 3End J 1Discharge, thus when charging the inversion line-down.While is the voltage of pin detection battery 1., and to the power supply of computing amplifier integrated block, by R 4, D 11The voltage stabilizing circuit of forming makes 2,5 pin of amplifier be constant at a certain magnitude of voltage, by R 12, R 13Form bleeder circuit and be connected to 3 pin, when 3 pin voltages were lower than 2 pin voltages, 1 pin was output as low level, and electric current passes through D 3, R 15Make T 1Conducting, along with cell voltage raises gradually, when 3 pin voltages during, 1 pin output becoming high level greater than 2 pin voltages, this moment D 3End T 1Stop by charging.Have a △ V because storage battery is full of the back, therefore, after battery stopped charging, cell voltage descended, and charging circuit is worked again, and so circulation is returned multiple till battery is full of.In addition, the direct voltage of rectification output passes through R 7Make T 4Conducting, J 2Adhesive makes J 2-1Lead to ballast, J 2-2Lead to starter, J 2-3Lead to power supply, daylight lamp glow starting is lighted.
When no 220V imports, because T 4Base stage no-voltage, so J 2Discharge circuit and be in inverter mode, fluorescent tube is by the inversion line powering.Voltage by 1. pin input passes through R simultaneously 10, R 11Dividing potential drop is sent into 6 pin, and when 6 pin voltages were higher than 5 pin voltages, 7 pin were output as low level, pass through D 12, R 16Make controllable silicon trigger very low level, controllable silicon T 7End along with circuit working, cell voltage descends gradually, and when 6 pin voltages were lower than 5 pin voltages, the output of 7 pin was high level just, passes through D 12, R 16Deliver to T by 6. pin 7Trigger electrode makes T 7Conducting, T 2Base stage becomes high level, T 2Conducting, T 3Base potential descends and makes T 3End J 1Discharge, disconnected the power supply of inversion circuit rapidly.Owing to after battery disconnects negative cutting, exist a △ V that cell voltage is risen, therefore 6. pin becomes low level again in order to make inverter circuit not because of 6. pin voltage reduction and rework, and avoids damaging the inversion circuit element, and this circuit designs especially by R 3, T 7, R 6The self-locking circuit of forming, by module 6. pin be input to controllable silicon T 7Triggering pin T 7Conducting.Allow T 2Be in saturation condition always.T 3Base stage is in electronegative potential always, no longer conducting, J 1No longer adhesive has only J when alternating current is imported like this 2Adhesive makes J 2-4Disconnect the controllable silicon anode, controllable silicon is ended.Guaranteed to have only battery just can restart the inversion circuit like this after overcharging, this has very big meaning to the life-span that prolongs storage battery.
This lamp inversion circuit adopts symmetrical operation state, the similar sine wave of its output waveform, the little inversion efficiency height of operating current; therefore lamp luminescence brightness is high and soft; filament has constituted the no-load protection circuit as power supply and the link circuit of recommending biasing simultaneously, passes through J by positive source when fluorescent tube inserts 2-2, fluorescent tube and J 2-3Constitute the loop, supply with R 8, R 9Bias voltage make T 5, T 6Operate as normal, if do not connect fluorescent tube, R can not be supplied with in this loop 8, R 9Voltage, the inversion circuit will quit work.C in the circuit 3The negative stream of disconnecting of decision frequency of oscillation and control, C 3When capacity increases, flow through C 3Electric current increase, lamplight brightness is improved, so C in this circuit 3The brightness of scalable fluorescent tube.
The starter circuit adopts diode D of normal starter serial connection 10Method the starter performance is improved.Its principle becomes unidirectional pulsating direct current according to the electric current by ballast, makes to flow through the increase of ballast electric current, and therefore, self induction electromotive force increases behind the starter, fluorescent tube is triggered light.Therefore also can the starter fluorescent tube under lower input voltage, make it can operate as normal.

Claims (6)

1, a kind of full-automatic AC/DC fluorescence lamp comprises fluorescent tube, ballast, transformer, it is characterized in that also comprising the charge and discharge protecting circuit of being made up of power transformer and bridge rectifier circuit, PNP triode, operational amplifier; By high frequency transformer, high frequency retardation coil, triode is formed recommends the inversion circuit; The fluorescent lamp circuit of forming by diode, starter, fluorescent lamp, ballast.
2, full-automatic AC/DC fluorescence lamp as claimed in claim 1 is characterized in that: the cathode output end of the bridge rectifier circuit in the charge protection circuit is leaded up to diode D 2, triode T 1, resistance R 2With protective tube FB 2End links, the other end of protective tube and storage battery E polyphone, and the negative pole of storage battery connects the cathode output end of bridge rectifier, another road of the cathode output end of bridge rectifier and triode D 1, resistance R 1Series connection back and triode T 2Base stage link to each other triode T 2Collector electrode one tunnel and triode T 3Base stage link to each other one tunnel series resistance R 4Back and three collector T 2Collector electrode links to each other, triode T 2Emitter and triode T 3Emitter link to each other and link to each other with the cathode output end of bridge rectifier circuit; Triode T 3Collector electrode with by diode D 4, capacitor C 2, relay J 1The parallel circuits series connection back of forming links to each other operational amplifier IC with K switch 1, IC 22,5 pin respectively with by resistance R 4, voltage-stabiliser tube D 11The voltage stabilizing circuit of forming links to each other, operational amplifier IC 1, IC 23,6 pin respectively with by resistance R 12, R 13And resistance R 10, R 11The divider resistance of forming links to each other, operational amplifier IC 11 pin pass through resistance R 15, voltage-stabiliser tube D 3With triode T 1Base stage link to each other IC 1Bear the charging overvoltage protection of battery; Operational amplifier IC 27 pin and diode D 12, resistance R 16Series connection back and controllable silicon T 7Trigger electrode link to each other controllable silicon T 7The other end of negative electrode and triode T 2Base stage link to each other controllable silicon T 7Anode tap and resistance R 3, switch J 2-4And fluorescent tube J 2-1End links to each other, operational amplifier IC 2Voltage protection when bearing battery discharge to limit use; Triode T 4Base stage is through resistance R 7Link to each other with the cathode output end of bridge rectifier, collector electrode with by diode D 3And relay J 2The parallel circuits of forming, K switch series connection back link to each other triode T with anode 4Emitter link to each other with the output of bridge rectifier circuit.
3, as claim 1,2 described full-automatic AC/DC fluorescence lamps, it is characterized in that: at operational amplifier IC 2Be provided with by resistance R between 7 pin and the inversion circuit 3, controllable silicon T 7And resistance R 6The self-locking circuit of forming.
4, full-automatic AC/DC fluorescence lamp as claimed in claim 1, it is characterized in that: the inversion circuit is by resistance R 8, R 9, triode T 5, T 6, high frequency transformer, high frequency retardation coil Z 2Form with fluorescent tube, at fluorescent tube J 2-3Have additional capacitor C between end and the high frequency transformer 3
5, full-automatic AC/DC fluorescence lamp as claimed in claim 1 is characterized in that: starter S serial connection diode D 10After be connected on fluorescent tube J 2-2With J 2-3Between the end.
6, full-automatic AC/DC fluorescence lamp as claimed in claim 1, it is characterized in that: the no-load protection circuit passes through J by the electric current positive pole 2-1, fluorescent tube J 2-2Supply with R 8, R 9Bias voltage, make T 5, T 6Operate as normal will not quit work if do not connect fluorescent tube inversion circuit.
CN 94218888 1994-11-18 1994-11-18 Fully-automatic ac and dc fluorescent lamp Expired - Fee Related CN2203018Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 94218888 CN2203018Y (en) 1994-11-18 1994-11-18 Fully-automatic ac and dc fluorescent lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 94218888 CN2203018Y (en) 1994-11-18 1994-11-18 Fully-automatic ac and dc fluorescent lamp

Publications (1)

Publication Number Publication Date
CN2203018Y true CN2203018Y (en) 1995-07-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 94218888 Expired - Fee Related CN2203018Y (en) 1994-11-18 1994-11-18 Fully-automatic ac and dc fluorescent lamp

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CN (1) CN2203018Y (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1860830B (en) * 2003-09-25 2010-07-14 宗拓贝尔斯塔夫有限公司 Control system for several distributed lamp-operating devices, and method for initializing such a control system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1860830B (en) * 2003-09-25 2010-07-14 宗拓贝尔斯塔夫有限公司 Control system for several distributed lamp-operating devices, and method for initializing such a control system

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