CN2517219Y

CN2517219Y - Electronic trigger for high-tension sodium lamp

Info

Publication number: CN2517219Y
Application number: CN 01271677
Authority: CN
Inventors: 舒国馥
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-11-06
Filing date: 2001-11-06
Publication date: 2002-10-16
Anticipated expiration: 2011-11-06

Abstract

The utility model discloses a high-voltage sodium lamp electronic trigger. The commercial power passes by the double-voltage rectification double-resistance charging circuit and has 600V DC voltage on a charge capacitor C3. If an SIDAC silicon trigger is chosen, the pulse loop is from C3 to SIDAC to a primary side L1; when the voltage on C3 reaches to 400V, SIDAC is conducted, L1 coupling with L3 produces 4KV pulse and HPSL is lighted through the working of the inductance ballast, so that a trigger is formed. If a unidirectional thyristor VD2 is chosen, a sampling circuit with two resistances connected in series is connected in parallel on C3; the sampling voltage triggers a dual-way diode guide circuit and then triggers G pole of VD2; pulse loop is from C3 to VD2 TO L1; L2 produces 4KV pulse and another trigger is formed and the price is cheap. 400V is chosen and error of 4KV pulse is 0.1KV. Commercial power is also suitable during 165V - 270V. The tryout indicates that under the conditions of 60 DEG C, 285V, if light is not connected and commercial power is directly communicated, the utility model works well for continuous 24 hours and the double-voltage charging circuit can absorb disturbance.

Description

A kind of high-pressure sodium lamp electronic trigger

Technical field

A kind of high-pressure sodium lamp electronic trigger of the utility model relates to the electric lighting technical field, belongs to a kind of circuit arrangement that is used for the discharge lamp igniting specifically.This device is commonly referred to as electronic trigger, and this trigger produces high pressure and promptly quits work after making the discharge lamp ignition operation, lamp is powered by Inductive ballast by civil power.

Background technology

At present China's high-pressure sodium lamp (HPSL) especially the above person of 150W almost all use Inductive ballast, and produce millions of every year and enter domestic and international illumination market.As supporting electronic trigger, in use generally reflect only three months life-span.Analyze itself technical problem and be used to close and fasten more complicated with HPSL; from patent application (application number 92107345.3 sodium lamp electronic triggers and bidirectional diode thyristor), (93225311.3 high-pressure sodium bulb electricity consumption subtrigger), (95246247.8 high-pressure sodium lamp electronic trigger), (99209702.9 abnormal protection electronic trigger) prospectus; can find out that the capacitor charging circuit of this electron-like trigger or resonant tank and switching circuit all work under civil power 220V50HZ effect, can be described as the AC type electronic trigger.The weak point of this D-flip flop is: electric capacity and controllable silicon easily puncture, and igniting high-voltage pulse value consistency is bad, changes with line voltage.In the time of can not lighting lamp under reasons such as low-voltage or service interruption and fluorescent tube are aging, still do not stop production living pulse so that hear rate of trigger damaged.In addition in " modern light fixture common circuit collection " literary composition (this article publishes the handbook the electrophile---on the 395th page of the electronics newspaper bound volume in 2000, this book is published distribution in December, 2000 by publishing house of University of Electronic Science and Technology), a kind of 250W electronic ballast of high voltage sodium lamp that constitutes with the special-purpose control module SK402 of electric ballast is disclosed.Its circuits for triggering operation principle is as follows.At the 400V direct voltage that obtains high stability after to the full-wave rectification of civil power 220V and active PFC circuit, this voltage also is used for circuits for triggering except that the power supply as radio frequency power amplifier.This voltage is in case foundation promptly also is the input of HPSL according to R9-C10-R10-rectifier bridge negative pole, charging capacitor C10 is charged, when reaching 150V on the C10, be connected in parallel on the rapid conducting of the silicon trigger device SIDAC C10 two ends and that be in series with the L2 primary coil, current impulse is by above-mentioned coil, so that induce the 3KV high-voltage pulse on the L2 secondary coil, make HPSL igniting starter, the high-frequency current about 30KHZ is promptly sent into another input of HPSL so that the luminous work of HPSL by the L2 secondary coil.After lamp started, SIDAC closed.Can find out that with this above-mentioned circuits for triggering are to work under the effect of the 400V of high stability, the circuit of above-mentioned relatively AC type electronic trigger can be thought the once-through type circuits for triggering, and this circuit is a part of whole electric ballast.Be not directly to be used among the inductance type ballast HPSL circuit, and exist the precision of high-voltage pulse value to determine that by the precision of touching people's voltage of SIDAC discreteness is big.

Summary of the invention

In view of this, the utility model proposes a kind of HPSL electronic trigger, its objective is and dc trigger circuit in the above-mentioned electric ballast is peeled off and changed out, become an independently once-through type electronic trigger, and make every effort to reduce circuit power consumption and improve the power of igniting high-voltage pulse, with city's electrical network in Inductive ballast and the supporting use of HPSL.In view of the above, technical scheme that the utility model adopts is: at first comprise and adopt half-wave voltage doubler and two resistances to differ bigger resistance loop resistance charging circuit, can obtain the DC power supply that reaches as high as 600V on charging capacitor, while charging capacitor two ends are the primary coil of bridging coil L also.So far, can finish two kinds of electronic triggers more in two ways.First kind is: one of the negative terminal of primary coil L1 cold end and charging capacitor polyphone as foregoing but conducting voltage is 400V silicon trigger device SIDAC, in order to constitute the triggering and conducting pulse circuit.As previously mentioned, SIDAC conducting when in a single day voltage reach 400V on charging capacitor, the secondary L2 of coil L promptly sends high-voltage pulse, makes the HPSL igniting shinny, so far constitutes a kind of electronic trigger.Second kind is: when replacing SIDAC and so on silicon trigger device as if the inexpensive low pressure small-power bidirectional trigger diode of employing, then at the charging capacitor two ends one in parallel form the triggering and conducting pulse circuit that sample circuit and bidirectional diode VD1 and one-way SCR VD2 are formed by two high resistance measurements serial connections, in order to constitute another kind of electronic trigger.Promptly when reaching certain high voltage such as 400V on the charging capacitor, sampling voltage makes the VD1 conducting, then is added in the G utmost point of VD2, makes negativing ending grounding and anode connect the VD2 conducting of primary coil L1 cold end, thereby produces high-voltage pulse.The G utmost point of VD2 should be connected with reset resistor over the ground, so that VD2 can produce break-make continuously.What here will further specify is, two resistance loops that resistance is different are meant the newly-increased little 5-7 of a resistance resistance doubly of only using a resistance than normal charge circuit, this road is electrically connected with the city after diode D3 series connection, and the wastage in bulk or weight of two resistance than a conventional resistance still less.Can determine by the no-load voltage ratio of the former secondary of coil and the selection of charging voltage for the second class trigger, can more accurately determine output high-voltage pulse numerical value and it is brought up to 4KV.Diminish by appearance value and can improve pulse power charging capacitor.A kind of high-pressure sodium electronic trigger of the utility model (hereinafter to be referred as this trigger) contrasts prior art alternating electron trigger (abbreviation AC type) and with the circuits for triggering (being called for short 402 types) in the electric ballast of SK402 module formation following useful technique effect is arranged.(1) tube voltage drop of standard HSPL is at 100V ± 10V, if as pipe make in consistency higher, as greater than 120V the time, then have now AC type and 402 types all can be when lamp be bright also still pulse do not stop, and this trigger is lower than 400V after by multiplication of voltage, pulse stops.(2) under near the situation that electric wire disconnects lamp ring open circuit or lamp holder loose contact or the lamp holder, AC type and this trigger all can be worked.But this trigger does not damage through 48 hours through actual measurement, and AC type is difficult to reach, and its reason is the hear rate temperature rise.Can think tube voltage drop from 110V when (3) pipe wears out beginning, need higher triggering power this moment, and AC type pulse voltage consistency not attitude is good, and at 2.5KV to 4.5KV, and 402 types are 3KV.Some pipe just can not be lighted a fire like this, can light a fire again after changing alternating-current trigger.And this trigger is 4KV ± 0.1KV, and is bright through the general equal lamp of lighting a fire on probation.(4) this trigger drops to 0.1 μ F because charging capacitor is little compared with 402 types from 1.0 μ F, and unexpected power failure the when pipe on probation aging and firm bright lamp caused in the lamp condensation of gas inequality to adhere to tube wall and form dead lamp, and very easy in the same old way igniting lamp is bright.Be the relation that pulse frequency improves and pulse duration reduces by analysis.(5) this trigger is owing to the voltage of 400V on the charging capacitor is direct voltage, AC type is accurately stable relatively, except that 4KV high-voltage pulse value and power high conformity, the switch member SIDAC or the one-way SCR that comprise in the impulse circuit on former limit are in the little situation of the little current power dissipation of high voltage, and this more has superior than AC type.Determining also has good adaptation to the voltage fluctuation from city's electrical network at the starting impulse generation voltage of 400V, can be between 165V-270V operate as normal.Whole integrating can show as: from terminal sampling, to be transferred to 285V through 60 ° of high temperature, civil powers be input voltage, do not connect under lamp (or being the bad open circuit of the lamp) direct connecting city-power, but continuous operation test in 24 hours and not bad.(6) to the two resistance charge circuits and the sample circuit of this trigger, can be considered the long-time constant integrating circuit, disturb so to external world and just play digestion, the silicon of protection back level triggers part, bidirectional diode and controllable silicon.This is that AC type and 402 types are not available.

Description of drawings

Fig. 1 uses the electrical schematic diagram of silicon trigger device SIDAC for this trigger.

Fig. 2 is the electrical schematic diagram that this trigger uses bidirectional diode and one-way SCR.

Embodiment

Mode one promptly inserts the anode of high-pressure sodium lamp H through Inductive ballast 2 from Fig. 1 civil power live wire, insert this trigger secondary L2 again, the civil power ground wire inserts the H negative terminal, insert another outlet of this trigger again, civil power is through D1-C1 and C2-D2 voltage doubling rectifing circuit, between C1-C2 the 600V direct current can be arranged, through two resistance charge circuits, promptly R1-C3 and D3-R5-C3 also have 600V voltage on charging capacitor C3 again.D3 and R5 distinguish conventional voltage-multiplying circuit and newly establish, and the resistance of R5 can be 1/5 to 1/7 of conventional R1.Asymmetric charging current makes charging 300V voltage in early stage be come by D3-R5, and the later stage is supplied with by D1-R1 to 400V, makes R1 of total power consumption ratio routine also still less 50% of when 0V is charged to 300V R1 R5 like this.When primary coil L1-silicon trigger VD (SIDAC type) is inserted at the positive and negative two ends of charging capacitor C3, when selecting VC3 to reach 400V, the VD conducting, C3 is by L1 and VD discharge, L1 has the 400V pulse generation, and the coil of L2 by 1: 10 induces the 4KV high-voltage pulse than mutual coupling and enter high-pressure sodium lamp H igniting build-up of luminance.Here R1 is 200K, and C3 is 0.1 μ F.

Mode two is promptly from Fig. 2, multiplication of voltage and two resistance charging circuit and mode one are just the same, owing to buy the device consideration from reaching economically, SIDAC type element VD is substituted by one-way SCR VD2 in the pulse generation loop, so that also will connect a reset resistor R4 and two-way two utmost point trigger tube VD1 over the ground on extremely at the G of controllable silicon VD2.It is the sort of model of 32V that the manner two is selected the triggering and conducting voltages, in parallel one sample circuit that is in series by two high value resistance R 2 and R1 on charging capacitor C3 like this, and sampling point connects energy storage capacitor C4 over the ground and connects VD1.Go up in case charging when reaching 400V as C3 like this, the VD1-VD2 triggering and conducting, L1-L2 produces the 4KV high-voltage pulse, so that H igniting build-up of luminance.Here R2 can select in 4.7M to 6.8M, and R1 then is hundreds of K.(the R1 value is by the measured value adjustment of VD1).

Claims

1. high-pressure sodium lamp electronic trigger. include two leads or a line one of going out in the box and collude, one is drawn from secondary coil L2 and is external to the high-pressure sodium lamp anode, this end also connect one from the civil power live wire by the lead behind the Inductive ballast Z, another root be connected from the civil power ground wire after be connected to the negative terminal of high-pressure sodium lamp, be used for from civil power obtain power supply and by box in pulse circuit output high-voltage pulse; Be derived from the power circuit of civil power in addition, be used to export fixed value voltage and give triggering and conducting device and loop thereof so that can produce pulse after its conducting; Be serially connected with the pulse circuit of electric capacity, primary coil L1 and triggering and conducting device at last in addition, be used for producing pulse and producing high-voltage pulse at secondary coil L2 at primary coil L1 after this loop triggering and conducting by induction; It is characterized in that:

(1) described power circuit by three rectification circuits doubly and thereafter the different two resistance charging circuits of resistance of level form, be used to make on the charging capacitor of this power circuit afterbody have higher direct voltage and less consumable;

(2) described pulse circuit is connected in series by charging capacitor, primary coil L1 and SIDAC type silicon trigger device.

2. a kind of high-pressure sodium lamp electronic trigger according to claim 1 is characterized in that live wire in the different resistance of two resistances of its power circuit is little to the resistance on this road of secondary coil, and that relative resistance is big, can differ 5 times to 7 times.

3. a kind of high-pressure sodium lamp electronic trigger according to claim 1 is characterized in that power circuit output is that charging capacitor output fixed value voltage can be set at 400V, is used to make SIDAC type device triggering and conducting so that pulse circuit conducting.

4. high-pressure sodium lamp electronic trigger, including two leads or a line one of going out in the box colludes, one is drawn from secondary coil L2 and is external to the high-pressure sodium lamp anode, this end also connect one from the civil power live wire by the lead behind the Inductive ballast Z, another root be connected from the civil power ground wire after be connected to the negative terminal of high-pressure sodium lamp, be used for from civil power obtain power supply and by box in pulse circuit output high-voltage pulse; Be derived from the power circuit of civil power in addition, be used to export fixed value voltage and give triggering and conducting device and loop thereof so that can produce pulse after its conducting; Be serially connected with the pulse circuit of electric capacity, primary coil L1 and triggering and conducting device at last in addition, be used for producing pulse and producing high-voltage pulse at secondary coil L2 at primary coil L1 after this loop triggering and conducting by induction; It is characterized in that:

(1) described power circuit by three rectification circuits doubly, and the resistance of level is different thereafter two resistance charging circuits, renew the sample circuit that the resistance by two higher resistance value that adds the charging capacitor two ends that are connected in parallel on behind this charging circuit grade is in series and form, be used for drawing certain sampling voltage be added on the bidirectional diode and make its conducting after be added to again pulse circuit one-way SCR G extremely, sampling point is connected to energy storage capacitor over the ground;

(2) described pulse circuit is connected in series by charging capacitor, primary coil L1 and one-way SCR, and the controllable silicon G utmost point has the reset resistor of ground connection;

(3) between described power circuit and the pulse circuit, also be connected with bidirectional diode, the one end connects the sampling point of sample circuit, and the other end connects the one-way SCR pipe G utmost point, is used to constitute G utmost point trigger voltage passage.

5. a kind of high-pressure sodium lamp electronic trigger according to claim 4 is characterized in that zero line in the different resistance of two resistances of its power circuit is little to the resistance on this road of secondary coil, and that resistance is the continent relatively, can differ 5 times to 7 times.

6. a kind of high-pressure sodium lamp electronic trigger according to claim 4 is characterized in that the output of power circuit main circuit is that charging capacitor output fixed value voltage can be set at 400V, the about 32.7V of another sample circuit output.Be respectively applied for and make controllable silicon and bidirectional diode triggering and conducting so that the pulse circuit conducting.