CN202617401U

CN202617401U - Double-light-source switching illuminating lamp

Info

Publication number: CN202617401U
Application number: CN 201220117971
Authority: CN
Inventors: 顾国兴; 章俊武; 陆佩芳; 陈磊; 方文治; 马涛; 翟继军; 蔡明诚; 胡显红; 黄晓霞
Original assignee: HONLAND LIGHTING CO Ltd; Shanghai Nuclear Engineering Research and Design Institute Co Ltd
Current assignee: HONLAND LIGHTING CO Ltd; Shanghai Nuclear Engineering Research and Design Institute Co Ltd
Priority date: 2012-03-26
Filing date: 2012-03-26
Publication date: 2012-12-19
Anticipated expiration: 2022-03-26

Abstract

The utility model provides a double-light-source switching illuminating lamp including a lamp base, a lamp shade, an installing and fixing device, a main power source, an auxiliary power source and a circuit device. The lamp base includes a main light source socket and an auxiliary light source socket. The main light source and the auxiliary light source are snapped or threaded with the main light source socket and the auxiliary light source socket respectively. The circuit device includes a ballast starting device, a fire-line electrode, a zero-line electrode and a light source switching controller. The light source switching controller includes voltage-reducing anti-interference circuit, a rectification filtering circuit, a voltage-stabilizing filtering circuit, a main light source current sampling circuit, an integrated control circuit, a main light source control execution circuit and an auxiliary power source control execution circuit. According to the utility model, the uninterrupted illumination is guaranteed through controlling the automatic switching of the main light source and the auxiliary light source through the light source switching controller. Problems of the reduction of the service lifetime of the double-light-source switching illuminating lamp caused by repeated striking in warm start of a high-intensity gas discharge lamp and the empty-load power consumption when failure occurs are solved, thereby reducing the cost and saving energy.

Description

A kind of pair of light source conversion illuminating lamp

Technical field

The utility model relates to a kind of lighting, particularly relates to a kind of two light source illumination lamp fittings that in same light fixture, have two light sources.

Background technology

The higher area illumination in space such as in the turbine block equipment room of, nuclear power plant outdoor in nuclear power plant or the nuclear island is the brightness that guarantees illumination, generally uses high-strength gaseous discharge lamp (HID).In order to prevent that because of outage influence illumination nuclear power plant generally all is equipped with the above anxious illumination of the emergency generator supply like diesel power generation of at least one cover to use.Under normal conditions, in the lighting of high ceiling, high-strength gaseous discharge lamp (HID) only disposes a light source.Because the characteristic that delay is lighted under the warm start state that high-strength gaseous discharge lamp (HID) is intrinsic; After outage, launch when recovering immediately again after emergency generator power supply or dispatch from foreign news agency are cut off the power supply; High-strength gaseous discharge lamp (HID) restarts to light needs one section cooling reboot time, and in the regular hour, not have illumination available and cause.Because the particularity of the part workplace of nuclear power plant, the illumination between some visual plants can not be interrupted, and this just need be when high-strength gaseous discharge lamp (HID) extinguishes, and having corresponding emergency light source to substitute high-strength gaseous discharge lamp (HID) immediately provides illumination.High-strength gaseous discharge lamp (HID) warm start required voltage is very high; Civil power or the emergent voltage that Gong to provide can not reach; Thereby can cause high-strength gaseous discharge lamp (HID) lamp to start immediately and sparking repeatedly, cause material such as easy damage electrode and influence the adverse consequences in the life-span of lamp.

Emergency lighting system commonly used often utilizes another set of subsequent use continuous-current plant; Stand-by power supply like the disclosed a kind of pair of light source intelligent control type lighting control circuit of Chinese patent document CN101959349A is dc back-up power supply; Its place such as nuclear power plant to high illumination demand is not too suitable, and it is higher that cost is set.The disclosed a kind of pair of light source tunnel illuminating lamp of Chinese patent document CN200720007241 and for example; Can implement the timing conversion between two kinds of light sources according to the time of setting by day and between evening, but it can not switch in real time according to the different operating situation of two kinds of light sources.

The utility model content

The purpose of the utility model is: adapt to the have relatively high expectations needs in place of illumination such as nuclear power plant; Problem to existing lighting existence; A kind of main light source and two light sources of secondary light source of in same lighting, being provided with are provided, and main light source adopts high-strength gaseous discharge lamp (HID), and secondary light source adopts tungsten halogen lamp or incandescent lamp; And lighting of two light sources can realize automaticallying switch according to different situations, and be uninterrupted to guarantee illumination; Solve high-strength gaseous discharge lamp (HID) under the warm start state, repeat the to strike sparks problem of unloaded power consumption when influencing the life-span of lamp and Metal halogen lamp and breaking down simultaneously.

The technical scheme of the utility model is: a kind of pair of light source conversion illuminating lamp, comprise lamp socket, lampshade, fixing device for installing, main light source, secondary light source and circuit arrangement, and lampshade is arranged on the below of lamp socket; Lamp socket contains main light source socket and secondary light source socket, and main light source socket and secondary light source socket are installed in the below of the lamp socket in the lampshade; Main light source socket and secondary light source socket all have two supply terminalss; Circuit arrangement is installed in the lamp socket or is located at outside the lamp socket with split type; Firewire electrode and zero wire electrode that circuit arrangement comprises the ballast starting drive and is used for external power supply; The ballast starting drive comprises inductance type ballast, trigger and building-out capacitor, and an end of the input of inductance type ballast and building-out capacitor has common junction, and this common junction is the live wire end of ballast starting drive; The other end of inductance type ballast is electrically connected with the input of trigger; The output of trigger is electrically connected with terminals of main light source socket; Another terminals conllinear of the zero line side of trigger, the other end of building-out capacitor and main light source socket and form a common junction, this common junction is the zero line side of ballast starting drive; The ballast starting drive is electrically connected with the zero wire electrode of circuit arrangement by its zero line side; Main light source and secondary light source are corresponding respectively to be electrically connected with clamping or the mode that is threaded with main light source socket and secondary light source socket; Its design feature is:

Aforesaid circuit arrangement also comprises the light source switching controller, and the light source switching controller comprises step-down anti-jamming circuit, current rectifying and wave filtering circuit, filter circuit of pressure-stabilizing, main light source current sampling circuit, voltage comparator circuit, centralized control circuit, main light source control executive circuit and secondary light source control executive circuit;

The step-down anti-jamming circuit has ac input end and ac output end; Current rectifying and wave filtering circuit has ac input end and dc power output end; Filter circuit of pressure-stabilizing has power end, earth terminal and output end of pressure-stabilizing; The main light source current sampling circuit has the live wire incoming end, live wire picks out end and main light source current signal output end; Voltage comparator circuit has power end, earth terminal, main light source current signal input and main light source current detection signal output; The centralized control circuit has power end, earth terminal, main light source current detection signal input, first control signal output ends and second control signal output ends; Main light source control executive circuit has dc power supply terminal, signal input end, live wire incoming end and live wire and picks out end; Secondary light source control executive circuit has dc power supply terminal, signal input end, live wire incoming end and live wire and picks out end; Said ac input end and ac output end all have live wire end and 2 links of zero line side, and said dc power output end has anodal and 2 links of negative pole;

The ac input end of step-down anti-jamming circuit is by its live wire end and corresponding with firewire electrode and the zero wire electrode respectively electrical connection of zero line side; The ac output end of step-down anti-jamming circuit by its live wire end and zero line side respectively with the live wire end and the corresponding electrical connection of zero line side of the ac input end of current rectifying and wave filtering circuit;

The power end of filter circuit of pressure-stabilizing is connected with the positive electrical of the dc power output end of current rectifying and wave filtering circuit; The earth terminal of filter circuit of pressure-stabilizing is connected with the negative electricity of the dc power output end of current rectifying and wave filtering circuit; The live wire incoming end of main light source current sampling circuit is electrically connected with the firewire electrode of circuit arrangement;

The power end of voltage comparator circuit is electrically connected with the output end of pressure-stabilizing of filter circuit of pressure-stabilizing; The earth terminal of voltage comparator circuit is connected with the negative electricity of the dc power output end of current rectifying and wave filtering circuit; The main light source current signal input of voltage comparator circuit is electrically connected with the main light source current signal output end of main light source current sampling circuit;

The power end of centralized control circuit is electrically connected with the output end of pressure-stabilizing of filter circuit of pressure-stabilizing; The earth terminal of centralized control circuit is connected with the negative electricity of the dc power output end of current rectifying and wave filtering circuit; The main light source current detection signal input of centralized control circuit is electrically connected with the main light source current detection signal output of voltage comparator circuit;

The dc power supply terminal of main light source control executive circuit is connected with the positive electrical of the dc power output end of current rectifying and wave filtering circuit; The signal input end of main light source control executive circuit is electrically connected with first control signal output ends of centralized control circuit; The live wire incoming end of main light source control executive circuit picks out end with the live wire of main light source current sampling circuit and is electrically connected; The live wire of main light source control executive circuit picks out end and is electrically connected with the live wire end of described ballast starting drive;

The dc power supply terminal of secondary light source control executive circuit is connected with the positive electrical of the dc power output end of current rectifying and wave filtering circuit; The signal input end of secondary light source control executive circuit is electrically connected with second control signal output ends of centralized control circuit; The live wire incoming end of secondary light source control executive circuit is electrically connected with firewire electrode; The live wire of secondary light source control executive circuit picks out end and helps terminals of light source socket to be electrically connected with defeated; Failing helps another terminals of light source socket to be electrically connected with zero wire electrode.

Further scheme is: the step-down anti-jamming circuit of above-mentioned light source switching controller comprises resistance R 1, piezo-resistance RU, inductance L 1, capacitor C 1, capacitor C 2 and the first protective tube FU1; Wherein, inductance L 1 is formed anti-jamming circuit with capacitor C 1; Resistance R 1 is formed reduction voltage circuit with capacitor C 2; The end of piezo-resistance RU is electrically connected with an end of inductance L 1 and forms a common junction, and this common junction is the live wire end of the ac input end of step-down anti-jamming circuit; One end conllinear of one end of the other end of inductance L 1, capacitor C 1, an end of capacitor C 2 and resistance R 1; The other end of capacitor C 2 is electrically connected with the other end of resistance R 1 and forms a common junction, and this common junction is the live wire end of the ac output end of step-down anti-jamming circuit; The end of the first protective tube FU1 is the zero line side of the ac input end of step-down anti-jamming circuit; The other end conllinear of the other end of the first protective tube FU1, the other end of piezo-resistance RU and capacitor C 1 and form a common junction, this common junction is the zero line side of the ac output end of step-down anti-jamming circuit.

The current rectifying and wave filtering circuit of light source switching controller comprises diode D1, diode D2, diode D3, diode D4, electrochemical capacitor C3, capacitor C 4 and resistance R 2; Wherein, 4 diode D1, D2, D3 and D4 constitute full-wave bridge rectifier circuit, and electrochemical capacitor C3, capacitor C 4 and resistance R 2 constitute filter circuit; The negative pole of diode D3 is connected with the positive electrical of diode D1 and forms a common junction, and this common junction is the live wire end of the ac input end of current rectifying and wave filtering circuit; The negative pole of diode D4 is connected with the positive electrical of diode D2 and forms a common junction, and this common junction is the zero line side of the ac input end of current rectifying and wave filtering circuit; The negative pole of diode D1 is connected with the negative electricity of diode D2 and forms a common junction, and this common junction is the positive pole of the dc output end of current rectifying and wave filtering circuit; The positive pole of diode D3 is connected with the positive electrical of diode D4 and forms a common junction, and this common junction is the negative pole of the dc output end of current rectifying and wave filtering circuit; Electrochemical capacitor C3, capacitor C 4 and resistance R 2 all are connected in parallel between the positive pole and negative pole of dc output end of current rectifying and wave filtering circuit.

The filter circuit of pressure-stabilizing of light source switching controller comprises resistance R 3, resistance R 4, resistance R 5, resistance R 6, electrochemical capacitor C5, capacitor C 6, capacitor C 7, diode D5, voltage stabilizing didoe DZ1 and the adjustable shunting a reference source of three ends IC1, three ends are adjustable shunting a reference source IC1 has anode, negative electrode and with reference to the utmost point; Wherein, resistance R 3 constitutes first order voltage stabilizing circuit with voltage stabilizing didoe DZ1; Diode D5, electrochemical capacitor C5 and capacitor C 6 constitute filter circuit; The accurate voltage stabilizing circuit in resistance R 4, three ends are adjustable shunting a reference source IC1, capacitor C 7, resistance R 5 and the resistance R 6 formation second level; One end of resistance R 3 is the power end of filter circuit of pressure-stabilizing; The negative pole conllinear of the positive pole of the other end of resistance R 3, diode D5 and voltage stabilizing didoe DZ1; One end conllinear of one end of the positive pole of the negative pole of diode D5, electrochemical capacitor C5, capacitor C 6 and resistance R 4; The negative electrode conllinear of one end of the other end of resistance R 4, resistance R 5, an end of capacitor C 7 and the adjustable shunting a reference source of three ends IC1 and form a common junction, this common junction is the output end of pressure-stabilizing of filter circuit of pressure-stabilizing; The reference utmost point conllinear of one end of the other end of the other end of capacitor C 7, resistance R 5, resistance R 6 and the adjustable shunting a reference source of three ends IC1; The positive pole of the other end of the negative pole of the positive pole of voltage stabilizing didoe DZ1, electrochemical capacitor C5, capacitor C 6, three ends are adjustable shunting a reference source IC1 and the other end conllinear of resistance R 6 and form a common junction, this common junction is the earth terminal of filter circuit of pressure-stabilizing.

The main light source current sampling circuit of light source switching controller comprises current transformer B1, rectifier bridge ZLQ1, electrolytic capacitor filter C8 and resistance R 14; Terminals of the elementary winding of current transformer B1 are the live wire incoming end of main light source current sampling circuit, and the live wire that another terminals of elementary winding are the main light source current sampling circuit picks out end; Two terminals of the secondary winding of current transformer B1 are electrically connected respectively with two terminals that exchange end of rectifier bridge ZLQ1; Resistance R 14 is connected between company's terminals of secondary winding of current transformer B1; The negative pole of the dc terminal of rectifier bridge ZLQ1 is connected with the negative electricity of electrolytic capacitor filter C8 and forms a common junction, and this common junction is connected with the negative electricity of the dc power output end of current rectifying and wave filtering circuit; The positive pole of the dc terminal of rectifier bridge ZLQ1 is connected with the positive electrical of electrolytic capacitor filter C8 and forms a common junction, and this common junction is the main light source current signal output end of main light source current sampling circuit.

The voltage comparator circuit of light source switching controller comprises operational amplifier IC2, resistance R 7, resistance R 8, resistance R 9, resistance R 10 and resistance R 11; Wherein, resistance R 7 constitutes voltage sampling circuit with resistance R 8, and resistance R 9 constitutes bleeder circuit with resistance R 10; Operational amplifier IC2 has power end, earth terminal, in-phase input end, inverting input and output; One end of resistance R 7 is the main light source current signal input of voltage comparator circuit; One end of the other end of resistance R 7, resistance R 8 and the in-phase input end conllinear of operational amplifier IC2; The power end of operational amplifier IC2 is electrically connected with an end of resistance R 9 and forms a common junction, and this common junction is the power end of voltage comparator circuit; One end conllinear of the other end of the inverting input of operational amplifier IC2, resistance R 9 and resistance R 10; The earth terminal conllinear of the other end of the other end of resistance R 8, resistance R 10 and operational amplifier IC2 and form a common junction, this common junction is the earth terminal of voltage comparator circuit; The output of operational amplifier IC2 is electrically connected with an end of resistance R 11; The other end of resistance R 11 is the main light source current detection signal output of voltage comparator circuit.

The centralized control circuit of light source switching controller comprises single-chip microcomputer IC3, triode Q1, triode Q2, resistance R 12 and resistance R 13; Single-chip microcomputer IC3 has power end, earth terminal, input, first output and second output; The power end of single-chip microcomputer IC3 is the power end of centralized control circuit; The power end of single-chip microcomputer IC3 is the power end of centralized control circuit; The input of single-chip microcomputer IC3 is the current detection signal input of centralized control circuit; First output of single-chip microcomputer IC3 is electrically connected through the base stage of resistance R 13 with triode Q1, and the collector electrode of triode Q1 is first control signal output ends of centralized control circuit; Second output of single-chip microcomputer IC3 is electrically connected through the base stage of resistance R 12 with triode Q2; The collector electrode of triode Q2 is second control signal output ends of centralized control circuit; The emitter-base bandgap grading conllinear of the emitter-base bandgap grading of the earth terminal of single-chip microcomputer IC3, triode Q1 and triode Q2 and form a common junction, this common junction is the earth terminal of centralized control circuit.

The main light source control executive circuit of light source switching controller comprises solid-state relay J1 and reverse protection diode D6; Solid-state relay J1 has moving contact, normally closed fixed contact J1-1 and Chang Kai fixed contact J1-2; The terminals of the moving contact of solid-state relay J1 are the live wire incoming end of main light source control executive circuit; The live wire that the terminals of the normally closed fixed contact J1-1 of solid-state relay J1 are main light source control executive circuit picks out end; The terminals of often opening fixed contact J1-2 of solid-state relay J1 are unsettled; Terminals of the actuating coil of solid-state relay J1 are connected with the negative electricity of diode D6 and form a common junction, and this common junction is the dc power supply terminal of main light source control executive circuit; Another terminals of the actuating coil of solid-state relay J1 are connected with the positive electrical of diode D6 and form a common junction, and this common junction is the signal input end of main light source control executive circuit;

The secondary light source control executive circuit of light source switching controller comprises the second protective tube FU2, solid-state relay J2 and reverse protection diode D7; Solid-state relay J2 has moving contact, normally closed fixed contact J2-1 and Chang Kai fixed contact J2-2; The end of the second protective tube FU2 is the live wire incoming end of secondary light source control executive circuit; The other end of the second protective tube FU2 is electrically connected with the terminals of the moving contact of solid-state relay J2; The live wire that the terminals of often opening fixed contact J2-2 of solid-state relay J2 are secondary light source control executive circuit picks out end; The terminals of the normally closed fixed contact J2-1 of solid-state relay J2 are unsettled; Terminals of the actuating coil of solid-state relay J2 are connected with the negative electricity of diode D7 and form a common junction, and this common junction is the dc power supply terminal of secondary light source control executive circuit; Another terminals of the actuating coil of solid-state relay J2 are connected with the positive electrical of diode D7 and form a common junction, and this common junction is the signal input end of secondary light source control executive circuit.

Further scheme is: above-mentioned main light source is a metal halide lamp, and aforesaid secondary light source is tungsten halogen lamp or incandescent lamp.

Further scheme is: above-mentioned fixing device for installing is ceiling type, derrick type, chain sling formula or inhales the wall type fixture.

The good effect that the utlity model has is: automatically switch under the control of light source switching controller through main and auxiliary two light sources (1), uninterrupted with the illumination that guarantees the workplace that illumination can not be interrupted.(2) under the warm start state, cut off its power supply through high-strength gaseous discharge lamp (HID), treat to recover its power supply again after its cooling, solved high-strength gaseous discharge lamp (HID) and under the warm start state, repeated to strike sparks and influence the life problems of lamp.Unloaded power consumption problem is saved the energy when (3) having solved Metal halogen lamp and break down.

Description of drawings

Fig. 1 is the general structure sketch map of two light source conversion illuminating lamps of the utility model;

Fig. 2 is the circuit block diagram of two light source conversion illuminating lamps of the utility model;

Fig. 3 is the electrical schematic diagram that two light sources shown in Figure 2 are changed illuminating lamps.

Reference numeral implication in the above-mentioned accompanying drawing is following:

Lamp socket 1, main light source socket 11, secondary light source socket 12,

Lampshade 2, fixing device for installing 3,

Main light source 41, secondary light source 42.

Circuit arrangement 5, ballast starting drive 5a, firewire electrode L, zero wire electrode N,

Light source switching controller 5b, step-down anti-jamming circuit 51, current rectifying and wave filtering circuit 52, filter circuit of pressure-stabilizing 53, current detection circuit 54, centralized control circuit 55, main light source control executive circuit 56, secondary light source control executive circuit 57.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation:

(embodiment 1)

See Fig. 1, two light source conversion illuminating lamps of present embodiment comprise lamp socket 1, lampshade 2, fixing device for installing 3, main light source 41, secondary light source 42 and circuit arrangement 5.Lamp socket 1 is provided with main light source socket 11 and secondary light source socket 12; Main light source socket 11 is installed on the lamp socket 1 in the lampshade 2 with secondary light source socket 12, and is positioned at the below of lamp socket 1.Main light source socket 11 all has two supply terminalss with secondary light source socket 12.Main light source 41 and secondary light source 42 are corresponding respectively to be electrically connected with clamping or the mode that is threaded with main light source socket 11 and secondary light source socket 12.

Lampshade 2 is arranged on the below of lamp socket 1, and lampshade 2 can be arranged to be integral part with lamp socket 1, also can be split type with lamp socket 1 and with 1 fixed or movable connection of lamp socket.

Fixing device for installing 3 is connected on the lamp socket 1, is used for the installation of light fixture, can be arranged to be positioned at ceiling type, derrick type or the chain sling formula structure of lamp socket 1 top according to the needs of environment for use, also can be arranged to be positioned at the suction wall type of 1 one sides of lamp socket.

Circuit arrangement 5 is installed in the lamp socket 1, also available special electrical box form and light fixture partial installation.

See Fig. 2, circuit arrangement 5 comprises ballast starting drive 5a, firewire electrode L, zero wire electrode N and light source switching controller 5b.Firewire electrode L is used to be connected external ac power source with zero wire electrode N.

See Fig. 3, ballast starting drive 5a has live wire end and zero line side, and ballast starting drive 5a is made up of inductance type ballast LL, trigger S and building-out capacitor C.Trigger S has input 1 pin, output 2 pin and zero line side 3 pin, and its model is preferably CD-7H.The end of inductance type ballast LL is electrically connected with the end of building-out capacitor C and forms a common junction, and this common junction is the live wire end of ballast starting drive 5a; The other end of inductance type ballast LL is electrically connected with the input of trigger S; The output of trigger S is electrically connected with terminals of main light source socket 11; Another terminals conllinear of the other end of the zero line side of trigger S, building-out capacitor C and main light source socket 11 and form a common junction, this common junction is the zero line side of ballast starting drive 5a.Ballast starting drive 5a is electrically connected with zero wire electrode N by its zero line side.

Aforesaid light source switching controller 5b is made up of step-down anti-jamming circuit 51, current rectifying and wave filtering circuit 52, filter circuit of pressure-stabilizing 53, main light source current sampling circuit 54, voltage comparator circuit 55, centralized control circuit 56, main light source control executive circuit 57 and secondary light source control executive circuit 58.

Step-down anti-jamming circuit 51 has ac input end and ac output end.Current rectifying and wave filtering circuit 52 has ac input end and dc power output end.Filter circuit of pressure-stabilizing 53 has power end, earth terminal and output end of pressure-stabilizing.Main light source current sampling circuit 54 has the live wire incoming end, live wire picks out end and main light source current signal output end.Voltage comparator circuit 55 has power end, earth terminal, main light source current signal input and main light source current detection signal output.Centralized control circuit 56 has power end, earth terminal, main light source current detection signal input, first control signal output ends and second control signal output ends.Main light source control executive circuit 57 has dc power supply terminal, signal input end, live wire incoming end and live wire and picks out end; Secondary light source control executive circuit 58 has dc power supply terminal, signal input end, live wire incoming end and live wire and picks out end; Above-mentioned ac input end and ac output end all have live wire end and 2 links of zero line side.Above-mentioned dc power output end has anodal and 2 links of negative pole.

The ac input end of step-down anti-jamming circuit 51 by its live wire end and zero line side respectively with the corresponding electrical connection of firewire electrode L and zero wire electrode N; The ac output end of step-down anti-jamming circuit 51 by its live wire end and zero line side respectively with the live wire end and the corresponding electrical connection of zero line side of the ac input end of current rectifying and wave filtering circuit 52.

The power end of filter circuit of pressure-stabilizing 53 is connected with the positive electrical of the dc power output end of current rectifying and wave filtering circuit 52; The earth terminal of filter circuit of pressure-stabilizing 53 is connected with the negative electricity of the dc power output end of current rectifying and wave filtering circuit 52.

The live wire incoming end of main light source current sampling circuit 54 is electrically connected with the firewire electrode L of circuit arrangement 5.

The power end of voltage comparator circuit 55 is electrically connected with the output end of pressure-stabilizing of filter circuit of pressure-stabilizing 53; The earth terminal of voltage comparator circuit 55 is connected with the negative electricity of the dc power output end of current rectifying and wave filtering circuit 52; The main light source current signal input of voltage comparator circuit 55 is electrically connected with the main light source current signal output end of main light source current sampling circuit 54.

The power end of centralized control circuit 56 is electrically connected with the output end of pressure-stabilizing of filter circuit of pressure-stabilizing 53; The earth terminal of centralized control circuit 56 is connected with the negative electricity of the dc power output end of current rectifying and wave filtering circuit 52; The main light source current detection signal input of centralized control circuit 56 is electrically connected with the main light source current detection signal output of voltage comparator circuit 55.

The dc power supply terminal of main light source control executive circuit 57 is connected with the positive electrical of the dc power output end of current rectifying and wave filtering circuit 52; The signal input end of main light source control executive circuit 57 is electrically connected with first control signal output ends of centralized control circuit 56; The live wire incoming end of main light source control executive circuit 57 picks out end with the live wire of main light source current sampling circuit 54 and is electrically connected; The live wire of main light source control executive circuit 57 picks out end and is electrically connected with the live wire end of aforesaid ballast starting drive 5a.

The dc power supply terminal of secondary light source control executive circuit 58 is connected with the positive electrical of the dc power output end of current rectifying and wave filtering circuit 52; The signal input end of secondary light source control executive circuit 58 is electrically connected with second control signal output ends of centralized control circuit 56; The live wire incoming end of secondary light source control executive circuit 58 is electrically connected with firewire electrode L; The live wire of secondary light source control executive circuit 58 picks out end and helps terminals of light source socket 12 to be electrically connected with defeated; Failing helps another terminals of light source socket 12 to be electrically connected with zero wire electrode N.

See Fig. 2 and Fig. 3, the step-down anti-jamming circuit 51 of light source switching controller 5b is made up of resistance R 1, piezo-resistance RU, inductance L 1, capacitor C 1, capacitor C 2 and the first protective tube FU1.Wherein, inductance L 1 is formed anti-jamming circuit with capacitor C 1; Resistance R 1 is formed reduction voltage circuit with capacitor C 2.The end of piezo-resistance RU is electrically connected with an end of inductance L 1 and forms a common junction, and this common junction is the live wire end of the ac input end of step-down anti-jamming circuit 51; One end conllinear of one end of the other end of inductance L 1, capacitor C 1, an end of capacitor C 2 and resistance R 1; The other end of capacitor C 2 is electrically connected with the other end of resistance R 1 and forms a common junction, and this common junction is the live wire end of the ac output end of step-down anti-jamming circuit 51; The end of the first protective tube FU1 is the zero line side of the ac input end of step-down anti-jamming circuit 51; The other end conllinear of the other end of the first protective tube FU1, the other end of piezo-resistance RU and capacitor C 1 and form a common junction, this common junction is the zero line side of the ac output end of step-down anti-jamming circuit 51.

The current rectifying and wave filtering circuit 52 of light source switching controller 5b is made up of diode D1, diode D2, diode D3, diode D4, electrochemical capacitor C3, capacitor C 4 and resistance R 2.Wherein, 4 diode D1, D2, D3 and D4 form full-wave bridge rectifier circuit, and electrochemical capacitor C3, capacitor C 4 and resistance R 2 are formed filter circuit.The negative pole of diode D3 is connected with the positive electrical of diode D1 and forms a common junction, and this common junction is the live wire end of the ac input end of current rectifying and wave filtering circuit 52; The negative pole of diode D4 is connected with the positive electrical of diode D2 and forms a common junction, and this common junction is the zero line side of the ac input end of current rectifying and wave filtering circuit 52; The negative pole of diode D1 is connected with the negative electricity of diode D2 and forms a common junction, and this common junction is the positive pole of the dc output end of current rectifying and wave filtering circuit 52; The positive pole of diode D3 is connected with the positive electrical of diode D4 and forms a common junction, and this common junction is the negative pole of the dc output end of current rectifying and wave filtering circuit 52; Electrochemical capacitor C3, capacitor C 4 and resistance R 2 all are connected in parallel between the positive pole and negative pole of dc output end of current rectifying and wave filtering circuit 52.

The filter circuit of pressure-stabilizing 53 of light source switching controller 5b is made up of resistance R 3, resistance R 4, resistance R 5, resistance R 6, electrochemical capacitor C5, capacitor C 6, capacitor C 7, diode D5, voltage stabilizing didoe DZ1 and the adjustable shunting a reference source of three ends IC1.Wherein, The first order voltage stabilizing circuit of resistance R 3 and voltage stabilizing didoe DZ1 composition; Diode D5, electrochemical capacitor C5 and capacitor C 6 are formed filter circuits, resistance R 4, three ends are adjustable shunting a reference source IC1, capacitor C 7, the accurate voltage stabilizing circuit of the resistance R 5 and the resistance R 6 composition second level.Three ends are adjustable shunting a reference source IC1 has anode, negative electrode and with reference to the utmost point.In the present embodiment, three ends are adjustable, and the preferred model of shunting a reference source IC1 is the integrated circuit of TL431.One end of resistance R 3 is the power end of filter circuit of pressure-stabilizing 53; The negative pole conllinear of the positive pole of the other end of resistance R 3, diode D5 and voltage stabilizing didoe DZ1; One end conllinear of one end of the positive pole of the negative pole of diode D5, electrochemical capacitor C5, capacitor C 6 and resistance R 4; The negative electrode conllinear of one end of the other end of resistance R 4, resistance R 5, an end of capacitor C 7 and the adjustable shunting a reference source of three ends IC1 and form a common junction, this common junction is the output end of pressure-stabilizing of filter circuit of pressure-stabilizing 53; The reference utmost point conllinear of one end of the other end of the other end of capacitor C 7, resistance R 5, resistance R 6 and the adjustable shunting a reference source of three ends IC1; The positive pole of the other end of the negative pole of the positive pole of voltage stabilizing didoe DZ1, electrochemical capacitor C5, capacitor C 6, three ends are adjustable shunting a reference source IC1 and the other end conllinear of resistance R 6 and form a common junction, this common junction is the earth terminal of filter circuit of pressure-stabilizing 53.

The main light source current sampling circuit 54 of light source switching controller 5b is made up of current transformer B1, rectifier bridge ZLQ1, electrolytic capacitor filter C8 and resistance R 14.Terminals of the elementary winding of current transformer B1 are the live wire incoming end of main light source current sampling circuit 54, and the live wire that another terminals of elementary winding are main light source current sampling circuit 54 picks out end; Two terminals of the secondary winding of current transformer B1 are connected respectively with 3 pin with two terminals 1 pin of the interchange end of rectifier bridge ZLQ1, and resistance R 14 is connected as power match resistance between company's terminals of secondary winding of current transformer B1.Negative pole 4 pin of the dc terminal of rectifier bridge ZLQ1 are connected with the negative electricity of electrolytic capacitor filter C8 and form a common junction, and this common junction is connected with the negative electricity of the dc power output end of current rectifying and wave filtering circuit 52; Positive pole 2 pin of the dc terminal of rectifier bridge ZLQ1 are connected with the positive electrical of electrolytic capacitor filter C8 and form a common junction, and this common junction is the main light source current signal output end of main light source current sampling circuit 54.

Voltage comparator circuit 55 is made up of operational amplifier IC2, resistance R 7, resistance R 8, resistance R 9, resistance R 10 and resistance R 11.Wherein, resistance R 7 is formed voltage sampling circuit with resistance R 8, and resistance R 9 is formed bleeder circuit with resistance R 10.Operational amplifier IC2 has power end, earth terminal, in-phase input end, inverting input and output.In the present embodiment, the preferred model of operational amplifier IC2 is the dual operational amplifier integrated circuit of LM358.This integrated circuit has 8 leg, and 1 pin wherein, 2 pin, 3 pin, 4 pin and 8 pin are corresponding successively with above-mentioned output, inverting input, in-phase input end, earth terminal and power end.One end of resistance R 7 is the main light source current signal input of voltage comparator circuit 55; One end of the other end of resistance R 7, resistance R 8 and the in-phase input end of operational amplifier IC2 3 pin conllinear; Power end 8 pin of operational amplifier IC2 are electrically connected with an end of resistance R 9 and form a common junction, and this common junction is the power end of voltage comparator circuit 55; One end conllinear of inverting input 2 pin of operational amplifier IC2, the other end of resistance R 9 and resistance R 10; The earth terminal 4 pin conllinear of the other end of the other end of resistance R 8, resistance R 10 and operational amplifier IC2 and form a common junction, this common junction is the earth terminal of voltage comparator circuit 55; Output 1 pin of operational amplifier IC2 is electrically connected with an end of resistance R 11; The other end of resistance R 11 is the main light source current detection signal output of voltage comparator circuit 55; 5 pin of operational amplifier IC2,6 pin, 7 pin are vacant.

The centralized control circuit 56 of light source switching controller 5b is made up of single-chip microcomputer IC3, triode Q1, triode Q2, resistance R 12 and resistance R 13.Triode Q1 and triode Q2 are negative-positive-negative transistor.

Single-chip microcomputer IC3 has power end, earth terminal, input, first output and second output.In the present embodiment, the preferred model of single-chip microcomputer IC3 is the single-chip microcomputer integrated circuit of PIC12C508 or the single-chip microcomputer integrated circuit that model is 501B.Single-chip microcomputer integrated circuit PIC12C508 has 8 leg, and 1 pin of PIC12C508 is a vdd terminal, in the present embodiment as power end; 8 pin of PIC12C508 are Vss end, in the present embodiment as earth terminal; 4 pin of PIC12C508 are input or reset terminal, are set to input in the present embodiment; 2 pin of PIC12C508,3 pin, 5 pin, 6 pin and 7 pin are I/O end, and 2 pin wherein also have the effect of outside vibration input, and 3 pin also have the effect of outside oscillation output end.5 pin are arranged to first output in the present embodiment, and 6 pin are arranged to second output, and 2 pin, 3 pin and 7 pin are all unsettled.Integrated circuit 501B also has 8 leg, and each foot mouth of the port of each pin and integrated circuit PIC12C508 is similar.

Power end 1 pin of single-chip microcomputer IC3 is the power end of centralized control circuit 56; Input 4 pin of single-chip microcomputer IC3 are the current detection signal input of centralized control circuit 56; First output, 5 pin of single-chip microcomputer IC3 are electrically connected through the base stage of resistance R 13 with triode Q1, and the collector electrode of triode Q1 is first control signal output ends of centralized control circuit 56; Second output, 6 pin of single-chip microcomputer IC3 are electrically connected through the base stage of resistance R 12 with triode Q2; The collector electrode of triode Q2 is second control signal output ends of centralized control circuit 56; The emitter-base bandgap grading conllinear of earth terminal 8 pin of single-chip microcomputer IC3, the emitter-base bandgap grading of triode Q1 and triode Q2 and form a common junction, this common junction is the earth terminal of centralized control circuit 56.

The main light source control executive circuit 57 of light source switching controller 5b is made up of solid-state relay J1 and reverse protection diode D6.Solid-state relay J1 has moving contact, normally closed fixed contact J1-1 and Chang Kai fixed contact J1-2.The terminals of the moving contact of solid-state relay J1 are the live wire incoming end of main light source control executive circuit 57; The live wire that the terminals of the normally closed fixed contact J1-1 of solid-state relay J1 are main light source control executive circuit 57 picks out end; The terminals of often opening fixed contact J1-2 of solid-state relay J1 are unsettled.Terminals of the actuating coil of solid-state relay J1 are connected with the negative electricity of diode D6 and form a common junction, and this common junction is the dc power supply terminal of main light source control executive circuit 57; Another terminals of the actuating coil of solid-state relay J1 are connected with the positive electrical of diode D6 and form a common junction, and this common junction is the signal input end of main light source control executive circuit 57.

The secondary light source control executive circuit 58 of light source switching controller 5b is made up of the second protective tube FU2, solid-state relay J2 and reverse protection diode D7.Solid-state relay J2 has moving contact, normally closed fixed contact J2-1 and Chang Kai fixed contact J2-2.The end of the second protective tube FU2 is the live wire incoming end of secondary light source control executive circuit 58; The other end of the second protective tube FU2 is electrically connected with the terminals of the moving contact of solid-state relay J2; The live wire that the terminals of often opening fixed contact J2-2 of solid-state relay J2 are secondary light source control executive circuit 58 picks out end; The terminals of the normally closed fixed contact J2-1 of solid-state relay J2 are unsettled.Terminals of the actuating coil of solid-state relay J2 are connected with the negative electricity of diode D7 and form a common junction, and this common junction is the dc power supply terminal of secondary light source control executive circuit 58; Another terminals of the actuating coil of solid-state relay J2 are connected with the positive electrical of diode D7 and form a common junction, and this common junction is the signal input end of secondary light source control executive circuit 58.

In the present embodiment, main light source 41 preferable alloy halide lamps are called for short Metal halogen lamp, and the defeated light source 42 that helps is selected tungsten halogen lamp or incandescent lamp, preferred tungsten halogen lamp.After to state main light source 41 be that example is narrated with Metal halogen lamp and tungsten halogen lamp with secondary light source 42 respectively.The preferred 7D471 of piezo-resistance RU model; The preferred loose happy board SRD-12VDC-SL-C of the model of solid-state relay J1 and J2; The preferred 2A/250V of the second protective tube FU2 technical parameter; The preferred 0.5A/250V of the first protective tube FU1 technical parameter, the preferred CT01 of the model of current transformer B1, the preferred 2W10 of model of rectifier bridge heap ZLQ1.

Centralized control circuit 56 among the light source switching controller 5b of two light source conversion illuminating lamps of present embodiment has according to detected current signal control and the dual controlled function of timing controlled, implements control through main light source control executive circuit 57 and secondary light source control 58 pairs of Metal halogen lamps of executive circuit and tungsten halogen lamp.The time-controlled time of centralized control circuit 56 can be complied with and need be selected in the scope at 6 to 15 minutes, and through in the pre-set programs of single-chip microcomputer IC3, being provided with in advance, selecting the timing controlled time in the present embodiment is 10 minutes.Metal halogen lamp is according to the difference of power; Its starting current is also inequality; Like power is that its starting current of Metal halogen lamp of 70W is for being no less than 0.9A; Power be its starting current of Metal halogen lamp of 250W for being no less than 1.8A, power is that its starting current of Metal halogen lamp of 400W is for being no less than 3.2A, also promptly as long as Metal halogen lamp starts; Main light source current sampling circuit 54 can detect corresponding electric current and feed back to the single-chip microcomputer IC3 in the centralized control circuit 56 through voltage comparator circuit 55, and the single-chip microcomputer IC3 in the centralized control circuit 55 sends control signal corresponding after according to preset routine processes.

Two light source conversion illuminating lamps of present embodiment are after connecing electricity; Two light source switching controller 5b start working; Metal halogen lamp is in cold start or warm start state at this moment; Next is that Metal halogen lamp is in normal condition or abnormal condition, because the difference of Metal halogen lamp state makes circuit arrangement 5 be in corresponding 4 kinds of situations.Narrate respectively with different application examples according to circuit arrangement 5 residing four kinds of different situations below.

(application examples 1, Metal halogen lamp cold start-up under normal condition)

Two light sources conversion illuminating lamps that should use-case are before startup, and Metal halogen lamp wherein is in cold state and in proper working order, and the job step of circuit arrangement 5 is following:

1. before the energized; The moving contact of the solid-state relay J1 of the main light source control executive circuit 57 of the light source switching controller 5b of circuit arrangement 5 is in the state that is connected with normally closed fixed contact J1-1, and the moving contact of the solid-state relay J2 of secondary light source control executive circuit 58 is in the state that is connected with normally closed fixed contact J2-1.

After connecing electricity; Behind the elementary winding of external AC power supply by firewire electrode L and zero wire electrode N introducing through main light source current sampling circuit 54; Pass through moving contact and the normally closed fixed contact J1-1 of solid-state relay J1 successively; To the Metal halogen lamp power supply it is lighted by ballast starting drive 5a, thereby the elementary winding of the current transformer B1 of main light source current sampling circuit 54 there is big electric current to pass through.

The external AC power supply of being introduced by firewire electrode L and zero wire electrode N also passes through rectification and filtering and the output DC source of step-down, the current rectifying and wave filtering circuit 52 of step-down anti-jamming circuit 51 successively; The output of this DC power supply offers three loops; First loop forms through the collector and emitter of the triode Q1 of the coil of the solid-state relay J1 of main light source control executive circuit 57, centralized control circuit 56 successively, and the break-make in first loop is by the base stage control of triode Q1; Second loop forms through the collector and emitter of the triode Q2 of the coil of the second protective tube FU2 of secondary light source control executive circuit 58, solid-state relay J2, centralized control circuit 56 successively, and the break-make in second loop is by the base stage control of triode Q2; Tertiary circuit forms through filter circuit of pressure-stabilizing 53.The DC power supply of current rectifying and wave filtering circuit 52 outputs is exported the DC power supply of voltage stabilizing through after the voltage stabilizing and filtering of filter circuit of pressure-stabilizing 53.The DC power supply of this voltage stabilizing divides three tunnel outputs again; The first via provides power supply for the operational amplifier IC2 of voltage comparator circuit 55; The second the tunnel provides power supply for the single-chip microcomputer IC3 of centralized control circuit 56; Third Road provides power supply for the bleeder circuit of voltage comparator circuit 55, and produces reference voltage at the output (common junction of resistance R 9 and resistance R 10) of bleeder circuit.This reference voltage is by the inverting input 2 pin input of operational amplifier IC2.

2. when Metal halogen lamp is lighted; 54 alternating currents that elementary winding flow through by the secondary winding of its current transformer B1 of main light source current sampling circuit are responded to the bigger induced current of generation; Become dc current signal after this induced current process rectifier bridge ZLQ1 rectification and the filter capacitor C8 filtering, this dc current signal is from the main light source current signal output end output of main light source current sampling circuit 54.

3. after the above-mentioned dc current signal of main light source current sampling circuit 54 output is taken a sample through the voltage sampling circuit of being made up of resistance R 7 and resistance R 8 of voltage comparator circuit 55; Sampling voltage is taken out from the common junction of resistance R 7 and resistance R 8, and is imported by in-phase input end 3 pin of operational amplifier IC2.

Through the match selection of resistance R 7, R8, R9 and R10 resistance value, make sampling voltage value under the situation that Metal halogen lamp is lighted greater than reference voltage level.

Above-mentioned sampling voltage and reference voltage through the comparator among the operational amplifier IC2 relatively after; Because the magnitude of voltage of sampling voltage is higher than reference voltage; Make the state of this comparator be the output high level, also promptly export high level signal, after these high level signal process resistance R 11 step-downs at output 1 pin of operational amplifier IC2; Remain high level signal, thereby voltage comparator circuit 55 is by the main light source current detection signal of its main light source current detection signal output output high level.

4. the main light source current detection signal of the above-mentioned high level of voltage comparator circuit 55 outputs is transported to the single-chip microcomputer IC3 of centralized control circuit 56; This high level signal makes single-chip microcomputer IC3 export high-level control signal according to the program of setting at its second output, 6 pin; Make triode Q2 conducting; The coil of solid-state relay J2 gets; Unshakable in one's determination attract armature and make moving contact contact with often opening fixed contact J2-2, tungsten halogen lamp forms electric loop through moving contact and the Chang Kai fixed contact J2-2 of the second protective tube FU2, solid-state relay J2, and tungsten halogen lamp is supplied power and it is lighted simultaneously.First output, the 5 pin output low level control signals of single-chip microcomputer IC3, triode Q1 is in cut-off state, and solid-state relay J1 is failure to actuate.When tungsten halogen lamp was lighted, the time that single-chip microcomputer IC3 switches on to tungsten halogen lamp according to the program of setting began to carry out 10 minutes timing, and in the timing period, first output of single-chip microcomputer IC3 keeps the control signal state of output low level; Second output keeps the control signal state of output high level.Metal halogen lamp and tungsten halogen lamp are in illuminating state simultaneously.

5. then single-chip microcomputer IC3 continued and continued the control signal of output low level according to the program of setting by its first output, by the control signal of its second output output low level in 10 minutes between the timing of single-chip microcomputer IC3 institute.The former makes Metal halogen lamp continue and continues to light, illumination normally is provided.The latter makes triode Q2 end; Also promptly make centralized control circuit 56 discharge the action of armature by the coil losing electricity of the solid-state relay J2 of its second control signal output ends (collector electrode of triode Q2) control secondary light source control executive circuit 58; With its moving contact by with often open the state that fixed contact J2-2 connects and become the state that joins with normally closed fixed contact J2-1, thereby the power supply that cuts off tungsten halogen lamp extinguishes it.

(application examples 2, Metal halogen lamp cold start-up under abnormal condition)

Two light sources conversion illuminating lamps that should use-case are before startup, and Metal halogen lamp wherein is in cold state and works undesiredly, and the job step of circuit arrangement 5 is following:

1. before the energized, the state of the solid-state relay J1 of main light source control executive circuit 57 is identical with application examples 1 with the state of the solid-state relay J2 of secondary light source control executive circuit 58.

After connecing electricity, Metal halogen lamp does not work, and is that Metal halogen lamp breaks down yet, and the elementary winding of the current transformer B1 of main light source current sampling circuit 54 does not have electric current to pass through.

2. can not be lighted owing to Metal halogen lamp; The elementary winding of the current transformer B1 of main light source current sampling circuit 54 is no current also; So the main light source current sampling signal that main light source current sampling circuit 54 is exported by its main light source current signal output end is zero, does not also promptly have electric current.

3. the current sampling signal because of 54 outputs of main light source current sampling circuit is zero; Thereby the sampling voltage value of operational amplifier IC2 of transporting to voltage comparator circuit 55 is far below reference voltage; The state of the comparator of operational amplifier IC2 keeps output low level constant, also is the main light source current detection signal of voltage comparator circuit 55 by its main light source current detection signal output output low level.

4. the above-mentioned low level main light source current detection signal of voltage comparator circuit 55 outputs is transported to the single-chip microcomputer IC3 of centralized control circuit 56; This low level signal makes single-chip microcomputer IC3 according to the control signal of the program of setting by its first output output high level; Also export the control signal of high level by its second output, and begin to carry out Metal halogen lamp 10 minutes the timing under the situation that do not work by internal timer.

Single-chip microcomputer IC3 is in the control signal of its first output output high level; Make triode Q1 conducting; Also promptly make centralized control circuit 56 get electric and carry out the action of adhesive armature by the coil of the solid-state relay J1 of its first control signal output ends (collector electrode of triode Q1) control main light source control executive circuit 57; Thereby cut off the power supply of Metal halogen lamp, to prevent the unloaded power consumption of Metal halogen lamp.

Single-chip microcomputer IC3 is in the control signal of its second output output high level; Make triode Q2 conducting; Also promptly make centralized control circuit 56 get by the coil of the solid-state relay J2 of its second control signal output ends (collector electrode of triode Q2) control secondary light source control executive circuit 58; Unshakable in one's determination attract armature and make moving contact with often open fixed contact J2-2 and contact; Tungsten halogen lamp forms electric loop through moving contact and the Chang Kai fixed contact J2-2 of the second protective tube FU2, solid-state relay J2, and tungsten halogen lamp is supplied power and it is lighted.And the moving contact that keeps solid-state relay J2 is in always and often opens the state that fixed contact J2-2 is connected, thereby keeps tungsten halogen lamp Chang Liang, by tungsten halogen lamp the interim illumination that substitutes is provided.

When 5. the timing of 10 minutes under the Metal halogen lamp that single-chip microcomputer IC3 is carried out does not work situation arrives; Single-chip microcomputer IC3 is by the control signal of its first output output low level; Thereby make centralized control circuit 56 discharge armature movement, and then make ballast starting drive 5a recover to supply power to Metal halogen lamp by the coil losing electricity of the solid-state relay J1 of its first control signal output ends control main light source control executive circuit 57.

6. if the fault of Metal halogen lamp is got rid of (changing Metal halogen lamp or fault gets rid of), then Metal halogen lamp is lighted; This moment, then 2. circuit arrangement 5 moved to step order 5. according to step successively if the fault of Metal halogen lamp is not got rid of and can not be lighted, if the fault of Metal halogen lamp also gets rid of, then from step 2. to 5. circular flow successively of step, get rid of, light Metal halogen lamp until fault.

Metal halogen lamp is lighted, and then circuit arrangement 5 is in the situation that main light source 41 and secondary light source 42 are lighted simultaneously, and the circuit arrangement 5 that is equivalent to above-mentioned application examples 1 is passing through the situation of job step wherein after 1..Thereby subsequent step that should use-case 7. 10. the step with application examples 1 is 2. 5. corresponding identical respectively successively to step to step, finally tungsten halogen lamp extinguishes, Metal halogen lamp continues to light, and illumination normally is provided.

(application examples 3, Metal halogen lamp warm start under normal condition)

Two light sources conversion illuminating lamps that should use-case are before startup, and Metal halogen lamp wherein is in hot state and in proper working order, and the job step of circuit arrangement 5 is following:

After connecing electricity, Metal halogen lamp is then lighted characteristic because of intrinsic time-delay and is not worked, but also has because of starting the weak current that Metal halogen lamp produces in the alternating current circuit of the elementary winding of process current transformer B1.

2. owing to also have weak current in the alternating current circuit of the elementary winding of above-mentioned process current transformer B1, then after the secondary winding induction of this weak current by current transformer B1, the current sampling signal of main light source current sampling circuit 54 outputs is very little.

3. because of the main light source current sampling circuit 54 main light source current sampling signal that only output current is very little; Thereby the sampling voltage value of operational amplifier IC2 of transporting to voltage comparator circuit 55 is far below reference voltage; The state of the comparator of operational amplifier IC2 keeps output low level constant, also is the main light source current detection signal of voltage comparator circuit 55 by its main light source current detection signal output output low level.

Single-chip microcomputer IC3 then makes the power supply of Metal halogen lamp be cut off in the control signal of its first output output high level, damages the electrode and the inner bag of Metal halogen lamp to prevent that Metal halogen lamp from repeating to strike sparks.Single-chip microcomputer IC3 then keeps tungsten halogen lamp Chang Liang in the control signal of its second output output high level, by tungsten halogen lamp the interim illumination that substitutes is provided.

When 5. the timing of 10 minutes under the Metal halogen lamp that single-chip microcomputer IC3 is carried out does not work situation arrives; Single-chip microcomputer IC3 is by its first output output low level signal; Thereby make centralized control circuit 55 send control signal by its first control signal output ends and make main light source control executive circuit 57 solid-state relay J1 coil losing electricity and discharge the action of armature, and then make ballast starting drive 5a recover to supply power to Metal halogen lamp.At this moment, because having cooled off, lighted Metal halogen lamp.

Metal halogen lamp is lighted, and then circuit arrangement 5 is in the situation that main light source 41 and secondary light source 42 are lighted simultaneously, and the circuit arrangement 5 that is equivalent to above-mentioned application examples 1 is passing through the situation of job step wherein after 1..Thereby subsequent step that should use-case 6. 9. the step with application examples 1 is 2. 5. corresponding identical respectively successively to step to step, finally tungsten halogen lamp extinguishes, Metal halogen lamp continues to light, and illumination normally is provided.

(application examples 4, Metal halogen lamp warm start under abnormal condition)

The job step of circuit arrangement 5 that should use-case is identical with application examples 2; Though this be should be should use-case two light sources conversion illuminating lamps in Metal halogen lamp when starting, be in hot state; But step 5. in; When 10 minutes timing under the Metal halogen lamp that single-chip microcomputer IC3 is carried out does not work situation arrived, the Metal halogen lamp of this moment cooled off, thereby identical with the Metal halogen lamp of application examples 2; So subsequent step is identical; And circuit arrangement 5 job steps 2. to step process 4. according to only not have electric current to pass through relevant with the elementary winding of the current transformer B1 of the main light source current sampling circuit 54 of step in 1., and the equal no current of elementary winding of the current transformer B1 of application examples 2 and step that should the use-case main light source current sampling circuit 54 in 1. passes through, thus step that should use-case is 2. 4. identical with application examples 2 to step.

But two light source conversion illuminating lamps by above-mentioned application examples knowledge capital utility model; Automatically switch under the control of light source switching controller 5b through main and auxiliary two light sources; The illumination that having guaranteed the workplace that illumination can not be interrupted is uninterrupted, problems and shortcomings such as zero load power consumption that also having solved simultaneously strikes sparks when Metal halogen lamp recovers its power supply again under the warm start state again when influence the life-span of lamp and Metal halogen lamp and breaking down.

Above embodiment and application examples are the explanations to the embodiment of the utility model; But not to the restriction of the utility model; The technical staff in relevant technologies field is under the situation of spirit that does not break away from the utility model and scope; Can also make various conversion and variation and obtain the corresponding technical scheme that is equal to, so all technical schemes that are equal to all should be included into the scope of patent protection of the utility model.

Claims

1. a two light source conversion illuminating lamp comprises lamp socket (1), lampshade (2), fixing device for installing (3), main light source (41), secondary light source (42) and circuit arrangement (5), and described lampshade (2) is arranged on the below of lamp socket (1); Lamp socket (1) contains main light source socket (11) and secondary light source socket (12), and main light source socket (11) and secondary light source socket (12) are installed in the below of the lamp socket (1) in the lampshade (2); Main light source socket (11) and secondary light source socket (12) all have two supply terminalss; Circuit arrangement (5) is installed in the lamp socket (1) or is located at outside the lamp socket (2) with split type; Firewire electrode (L) and zero wire electrode (N) that circuit arrangement (5) comprises ballast starting drive (5a) and is used for external power supply; Described ballast starting drive (5a) comprises inductance type ballast (LL), trigger (S) and building-out capacitor (C); One end of the input of inductance type ballast (LL) and building-out capacitor (C) has common junction, and this common junction is the live wire end of ballast starting drive (5a); The other end of inductance type ballast (LL) is electrically connected with the input of trigger (S); The output of trigger (S) is electrically connected with terminals of main light source socket (11); Another terminals conllinear of the other end of the zero line side of trigger (S), building-out capacitor (C) and main light source socket (11) and form a common junction, this common junction is the zero line side of ballast starting drive (5a); Ballast starting drive (5a) is electrically connected with the zero wire electrode (N) of circuit arrangement (5) by its zero line side; Described main light source (41) and secondary light source (42) are corresponding respectively to be electrically connected with clamping or the mode that is threaded with main light source socket (11) and secondary light source socket (12); It is characterized in that:

Described circuit arrangement (5) also comprises light source switching controller (5b), and light source switching controller (5b) comprises step-down anti-jamming circuit (51), current rectifying and wave filtering circuit (52), filter circuit of pressure-stabilizing (53), main light source current sampling circuit (54), voltage comparator circuit (55), centralized control circuit (56), main light source control executive circuit (57) and secondary light source control executive circuit (58);

Step-down anti-jamming circuit (51) has ac input end and ac output end; Current rectifying and wave filtering circuit (52) has ac input end and dc power output end; Filter circuit of pressure-stabilizing (53) has power end, earth terminal and output end of pressure-stabilizing; Main light source current sampling circuit (54) has the live wire incoming end, live wire picks out end and main light source current signal output end; Voltage comparator circuit (55) has power end, earth terminal, main light source current signal input and main light source current detection signal output; Centralized control circuit (56) has power end, earth terminal, main light source current detection signal input, first control signal output ends and second control signal output ends; Main light source control executive circuit (57) has dc power supply terminal, signal input end, live wire incoming end and live wire and picks out end; Secondary light source control executive circuit (58) has dc power supply terminal, signal input end, live wire incoming end and live wire and picks out end; Said ac input end and ac output end all have live wire end and 2 links of zero line side, and said dc power output end has anodal and 2 links of negative pole;

The ac input end of step-down anti-jamming circuit (51) by its live wire end and zero line side respectively with firewire electrode (L) and the corresponding electrical connection of zero wire electrode (N); The ac output end of step-down anti-jamming circuit (51) by its live wire end and zero line side respectively with the live wire end and the corresponding electrical connection of zero line side of the ac input end of current rectifying and wave filtering circuit (52);

The power end of filter circuit of pressure-stabilizing (53) is connected with the positive electrical of the dc power output end of current rectifying and wave filtering circuit (52); The earth terminal of filter circuit of pressure-stabilizing (53) is connected with the negative electricity of the dc power output end of current rectifying and wave filtering circuit (52); The live wire incoming end of main light source current sampling circuit (54) is electrically connected with the firewire electrode (L) of circuit arrangement (5);

The power end of voltage comparator circuit (55) is electrically connected with the output end of pressure-stabilizing of filter circuit of pressure-stabilizing (53); The earth terminal of voltage comparator circuit (55) is connected with the negative electricity of the dc power output end of current rectifying and wave filtering circuit (52); The main light source current signal input of voltage comparator circuit (55) is electrically connected with the main light source current signal output end of main light source current sampling circuit (54);

The power end of centralized control circuit (56) is electrically connected with the output end of pressure-stabilizing of filter circuit of pressure-stabilizing (53); The earth terminal of centralized control circuit (56) is connected with the negative electricity of the dc power output end of current rectifying and wave filtering circuit (52); The main light source current detection signal input of centralized control circuit (56) is electrically connected with the main light source current detection signal output of voltage comparator circuit (55);

The dc power supply terminal of main light source control executive circuit (57) is connected with the positive electrical of the dc power output end of current rectifying and wave filtering circuit (52); The signal input end of main light source control executive circuit (57) is electrically connected with first control signal output ends of centralized control circuit (56); The live wire incoming end of main light source control executive circuit (57) picks out end with the live wire of main light source current sampling circuit (54) and is electrically connected; The live wire of main light source control executive circuit (57) picks out end and is electrically connected with the live wire end of described ballast starting drive (5a);

The dc power supply terminal of secondary light source control executive circuit (58) is connected with the positive electrical of the dc power output end of current rectifying and wave filtering circuit (52); The signal input end of secondary light source control executive circuit (58) is electrically connected with second control signal output ends of centralized control circuit (56); The live wire incoming end of secondary light source control executive circuit (58) is electrically connected with firewire electrode (L); The live wire of secondary light source control executive circuit (58) picks out end and helps terminals of light source socket (12) to be electrically connected with defeated; Failing helps another terminals of light source socket (12) to be electrically connected with zero wire electrode N.

2. according to claim 1 pair of light source conversion illuminating lamp, it is characterized in that: the step-down anti-jamming circuit (51) of described light source switching controller (5b) comprises resistance (R1), piezo-resistance (RU), inductance (L1), electric capacity (C1), electric capacity (C2) and first protective tube (FU1); Wherein, inductance (L1) and electric capacity (C1) are formed anti-jamming circuit; Resistance (R1) and electric capacity (C2) are formed reduction voltage circuit; One end of piezo-resistance (RU) is electrically connected with an end of inductance (L1) and forms a common junction, and this common junction is the live wire end of the ac input end of step-down anti-jamming circuit (51); One end conllinear of one end of one end of the other end of inductance (L1), electric capacity (C1), electric capacity (C2) and resistance (R1); The other end of electric capacity (C2) is electrically connected with the other end of resistance (R1) and forms a common junction, and this common junction is the live wire end of the ac output end of step-down anti-jamming circuit (51); One end of first protective tube (FU1) is the zero line side of the ac input end of step-down anti-jamming circuit (51); The other end conllinear of the other end of the other end of first protective tube (FU1), piezo-resistance (RU) and electric capacity (C1) and form a common junction, this common junction is the zero line side of the ac output end of step-down anti-jamming circuit (51).

3. according to claim 2 pair of light source conversion illuminating lamp, it is characterized in that: the current rectifying and wave filtering circuit (52) of described light source switching controller (5b) comprises diode (D1), diode (D2), diode (D3), diode (D4), electrochemical capacitor (C3), electric capacity (C4) and resistance (R2); Wherein, 4 diodes (D1, D2, D3 and D4) constitute full-wave bridge rectifier circuit, and electrochemical capacitor (C3), electric capacity (C4) and resistance (R2) constitute filter circuit; The negative pole of diode (D3) is connected with the positive electrical of diode (D1) and forms a common junction, and this common junction is the live wire end of the ac input end of current rectifying and wave filtering circuit (52); The negative pole of diode (D4) is connected with the positive electrical of diode (D2) and forms a common junction, and this common junction is the zero line side of the ac input end of current rectifying and wave filtering circuit (52); The negative pole of diode (D1) is connected with the negative electricity of diode (D2) and forms a common junction, and this common junction is the positive pole of the dc output end of current rectifying and wave filtering circuit (52); The positive pole of diode (D3) is connected with the positive electrical of diode (D4) and forms a common junction, and this common junction is the negative pole of the dc output end of current rectifying and wave filtering circuit (52); Electrochemical capacitor (C3), electric capacity (C4) and resistance (R2) all are connected in parallel between the positive pole and negative pole of dc output end of current rectifying and wave filtering circuit (52).

4. according to claim 3 pair of light source conversion illuminating lamp; It is characterized in that: the filter circuit of pressure-stabilizing (53) of described light source switching controller (5b) comprises resistance (R3), resistance (R4), resistance (R5), resistance (R6), electrochemical capacitor (C5), electric capacity (C6), electric capacity (C7), diode (D5), voltage stabilizing didoe (DZ1) and the adjustable shunting a reference source of three ends IC1, three ends are adjustable shunting a reference source IC1 has anode, negative electrode and with reference to the utmost point; Wherein, resistance (R3) and voltage stabilizing didoe (DZ1) constitute first order voltage stabilizing circuit; Diode (D5), electrochemical capacitor (C5) and electric capacity (C6) constitute filter circuit; Resistance (R4), three ends are adjustable shunting a reference source (IC1), electric capacity (C7), resistance (R5) and resistance (R6) constitute the accurate voltage stabilizing circuit in the second level; One end of resistance (R3) is the power end of filter circuit of pressure-stabilizing (53); The negative pole conllinear of the positive pole of the other end of resistance (R3), diode (D5) and voltage stabilizing didoe (DZ1); One end conllinear of one end of the positive pole of the negative pole of diode (D5), electrochemical capacitor (C5), electric capacity (C6) and resistance (R4); The negative electrode conllinear of shunting a reference source (IC1) that one end of one end of the other end of resistance (R4), resistance (R5), electric capacity (C7) and three ends are adjustable and form a common junction, this common junction is the output end of pressure-stabilizing of filter circuit of pressure-stabilizing (53); The reference utmost point conllinear of shunting a reference source (IC1) that one end of the other end of the other end of electric capacity (C7), resistance (R5), resistance (R6) and three ends are adjustable; The positive pole of the other end of the negative pole of the positive pole of voltage stabilizing didoe (DZ1), electrochemical capacitor (C5), electric capacity (C6), three ends are adjustable shunting a reference source (IC1) and the other end conllinear of resistance (R6) and form a common junction, this common junction is the earth terminal of filter circuit of pressure-stabilizing (53).

5. according to claim 4 pair of light source conversion illuminating lamp, it is characterized in that: the main light source current sampling circuit (54) of described light source switching controller (5b) comprises current transformer (B1), rectifier bridge (ZLQ1), electrolytic capacitor filter (C8) and resistance (R14); Terminals of the elementary winding of current transformer (B1) are the live wire incoming end of main light source current sampling circuit (54), and the live wire that another terminals of elementary winding are main light source current sampling circuit (54) picks out end; Two terminals of the secondary winding of current transformer (B1) are electrically connected respectively with two terminals that exchange end of rectifier bridge (ZLQ1); Resistance (R14) is connected between company's terminals of secondary winding of current transformer (B1); The negative pole of the dc terminal of rectifier bridge (ZLQ1) is connected with the negative electricity of electrolytic capacitor filter (C8) and forms a common junction, and this common junction is connected with the negative electricity of the dc power output end of current rectifying and wave filtering circuit (52); The positive pole of the dc terminal of rectifier bridge (ZLQ1) is connected with the positive electrical of electrolytic capacitor filter (C8) and forms a common junction, and this common junction is the main light source current signal output end of main light source current sampling circuit (54).

6. according to claim 5 pair of light source conversion illuminating lamp, it is characterized in that: the voltage comparator circuit (55) of described light source switching controller (5b) comprises operational amplifier (IC2), resistance (R7), resistance (R8), resistance (R9), resistance (R10) and resistance (R11); Wherein, resistance (R7) and resistance (R8) constitute voltage sampling circuit, and resistance (R9) and resistance (R10) constitute bleeder circuit; Operational amplifier (IC2) has power end, earth terminal, in-phase input end, inverting input and output; One end of resistance (R7) is the main light source current signal input of voltage comparator circuit 55; The in-phase input end conllinear of one end of the other end of resistance (R7), resistance (R8) and operational amplifier (IC2); The power end of operational amplifier (IC2) is electrically connected with an end of resistance (R9) and forms a common junction, and this common junction is the power end of voltage comparator circuit (55); One end conllinear of the other end of the inverting input of operational amplifier (IC2), resistance (R9) and resistance (R10); The earth terminal conllinear of the other end of the other end of resistance (R8), resistance (R10) and operational amplifier (IC2) and form a common junction, this common junction is the earth terminal of voltage comparator circuit (55); The output of operational amplifier (IC2) is electrically connected with an end of resistance (R11); The other end of resistance (R11) is the main light source current detection signal output of voltage comparator circuit (55).

7. according to claim 6 pair of light source conversion illuminating lamp, it is characterized in that: the centralized control circuit (56) of described light source switching controller (5b) comprises single-chip microcomputer (IC3), triode (Q1), triode (Q2), resistance (R12) and resistance (R13); Single-chip microcomputer (IC3) has power end, earth terminal, input, first output and second output; The power end of single-chip microcomputer (IC3) is the power end of centralized control circuit (56); The power end of single-chip microcomputer (IC3) is the power end of centralized control circuit (56); The input of single-chip microcomputer (IC3) is the current detection signal input of centralized control circuit (56); First output of single-chip microcomputer (IC3) is electrically connected through the base stage of resistance (R13) with triode (Q1), and the collector electrode of triode (Q1) is first control signal output ends of centralized control circuit (56); Second output of single-chip microcomputer (IC3) is electrically connected through the base stage of resistance (R12) with triode (Q2); The collector electrode of triode (Q2) is second control signal output ends of centralized control circuit (56); The emitter-base bandgap grading conllinear of the emitter-base bandgap grading of the earth terminal of single-chip microcomputer (IC3), triode (Q1) and triode (Q2) and form a common junction, this common junction is the earth terminal of centralized control circuit (56).

8. according to claim 7 pair of light source conversion illuminating lamp, it is characterized in that: the main light source control executive circuit (57) of described light source switching controller (5b) comprises solid-state relay (J1) and reverse protection diode (D6); Solid-state relay (J1) has moving contact, normally closed fixed contact (J1-1) and often opens fixed contact (J1-2); The terminals of the moving contact of solid-state relay (J1) are the live wire incoming end of main light source control executive circuit (57); The live wire that the terminals of the normally closed fixed contact (J1-1) of solid-state relay (J1) are main light source control executive circuit (57) picks out end; The terminals of often opening fixed contact (J1-2) of solid-state relay (J1) are unsettled; Terminals of the actuating coil of solid-state relay (J1) are connected with the negative electricity of diode (D6) and form a common junction, and this common junction is the dc power supply terminal of main light source control executive circuit (57); Another terminals of the actuating coil of solid-state relay (J1) are connected with the positive electrical of diode (D6) and form a common junction, and this common junction is the signal input end of main light source control executive circuit (57);

The secondary light source control executive circuit (58) of described light source switching controller (5b) comprises second protective tube (FU2), solid-state relay (J2) and reverse protection diode (D7); Solid-state relay (J2) has moving contact, normally closed fixed contact (J2-1) and often opens fixed contact (J2-2); One end of second protective tube (FU2) is the live wire incoming end of secondary light source control executive circuit (58); The other end of second protective tube (FU2) is electrically connected with the terminals of the moving contact of solid-state relay (J2); The live wire that the terminals of often opening fixed contact (J2-2) of solid-state relay (J2) are secondary light source control executive circuit (58) picks out end; The terminals of the normally closed fixed contact (J2-1) of solid-state relay (J2) are unsettled; Terminals of the actuating coil of solid-state relay (J2) are connected with the negative electricity of diode (D7) and form a common junction, and this common junction is the dc power supply terminal of secondary light source control executive circuit (58); Another terminals of the actuating coil of solid-state relay (J2) are connected with the positive electrical of diode (D7) and form a common junction, and this common junction is the signal input end of secondary light source control executive circuit (58).

9. according to the arbitrary described pair of light source conversion of claim 1 to 8 illuminating lamp, it is characterized in that: described main light source (41) is a metal halide lamp, and described secondary light source (42) is tungsten halogen lamp or incandescent lamp.

10. according to the arbitrary described pair of light source conversion of claim 1 to 8 illuminating lamp, it is characterized in that: described fixing device for installing (3) is for ceiling type, derrick type, chain sling formula or inhale the wall type fixture.