CN2762415Y - Instaneous interupt incoming protection controller for laser medical apparatus - Google Patents

Abstract

A kind of momentary power failure calling protection controller of laser therapeutical machine, belongs to solid laser power source technical field. The protection controller is by two comparison amplifiers A1, A2 and triode T1, T2, diode D1, D2, D3, D4, key switch, multiple resistance and capacitor composition. Wherein resistance

,R9=R10=R11. The output end of comparison amplifier A2, that is, J point connects the control switch of Laser Power Devices main circuit and trigger circuit, and collector, that is, K point of triode T2 connects the control switch of pre-burning high-tension circuit. Key switchs one end ground connection, the cathode of a terminating resistor R4 and diode D1. As soon as the utility model is only operated with a key switch, it can be automatically performed the control to pre-burning high-tension circuit, trigger circuit and main circuit, operation sequence is simplified, facilitate doctor's operation. The utility model has been applied successfully in the Solid State Laser therapeutic machine that I is developed, it may also be used for other various protections with power utilization instrument device including industrial solid laser machine control.

Description

The momentary power failure calling protection controller of laser therapeutical machine

Technical field

The utility model provides a kind of momentary power failure calling protection controller of reliable laser therapeutical machine, belongs to the solid laser power source technical field.

Background technology

Laser medicine is as the medical skill of a uniqueness, owing to medical effect significantly is widely used.In therapeutic process, in case of after the external power grid sudden power again immediately the incoming call fortuitous event the time, though the laser output power of laser therapeutical machine and then interrupts suddenly, but set up at once, because the striking current of the used krypton lamp of pumping is generally about 30A, instantaneous laser output power is strong, if shutdown does not in time easily cause malpractice.If the laser therapeutical machine shift knob is provided with too much in addition, operation sequence is loaded down with trivial details, makes troubles to doctor's operation.Therefore have momentary power failure calling protection, laser therapeutical machine simple to operation provide the momentary power failure incoming call safety assurance, be subjected to doctor's favor.Existing laser therapeutical machine is for realizing the momentary power failure calling protection; be typically provided with two switches; control main circuit and circuits for triggering respectively; when the laser therapeutical machine operate as normal; in case of sending a telegram here suddenly again after the external power grid sudden power; main circuit then is in electriferous state, must press the trigger control circuit switch when needing output laser again and trigger again and light a lamp.For realizing predefined laser power output, the shift knob on its control panel often is provided with a plurality of (more than 3), and operating process is loaded down with trivial details, has increased doctor's operation easier.

Summary of the invention

Safety in order to ensure laser medicine; simplify procedures; make things convenient for the doctor to operate; we have invented a kind of momentary power failure calling protection controller of laser therapeutical machine; its novelty is only to use some comparison amplifiers; diode; triode; simple electronic devices and components such as resistance and electric capacity carry out circuit design; just realized that this protection controller only needs to operate with a key switch; just can finish pre-burning high-tension circuit automatically to laser therapeutical machine; the control of circuits for triggering and main circuit; set up predefined laser output power and use, and be implemented in the reliably protecting of incoming call (comprise the outage of ordinary circumstance after incoming call) more immediately again of external power grid sudden power in the medical procedure for the doctor.This utility model successfully is applied to obtain expected effect in Solid State Laser that I the developed medical treatment machine in actual application.

Now in conjunction with the accompanying drawings the technical solution of the utility model is described in detail: this utility model is by two comparison amplifier A1, A2 and triode T1, T2, diode D1, D2, D3, D4, and key switch, a plurality of resistance and electric capacity are formed.Resistance wherein $R1=R2=R3=R4=\frac{1}{2}R5,$ R9=R10=R11, C1 are anti-interference capacitor, and C2 is a clamp capacitor.The output of A2 is the control switch that the J point connects Laser Power Devices main circuit and circuits for triggering, and receives the anode of diode D3, D4 by resistance R 12.When the J point is high potential, make main circuit and circuits for triggering be in the state that quits work that cuts off the power supply; When the J point is electronegative potential, make main circuit and circuits for triggering be in the connection operating state.The collector electrode of triode T2 is the control switch that the K point connects the pre-burning high-tension circuit, when triode T2 ends, makes the pre-burning high-tension circuit be in the state that quits work that cuts off the power supply; When triode T2 conducting, make the pre-burning high-tension circuit be in the connection operating state.

When laser therapeutical machine is connected external power grid voltage, V _CcBegin power supply, the key switch places OFF (disconnection) state, because resistance $R1=R2=R3=R4=\frac{1}{2}R5,$ The in-phase input end 1 pin current potential of comparison amplifier A1 is higher than the inverting input 2 pin current potentials of A1, so output 3 pin of A1 output high potential V _Cc, triode T1 conducting this moment, inverting input 5 pin of comparison amplifier A2 are electronegative potential, capacitor C 4 both end voltage are 0, and because resistance R 9=R10=R11, the in-phase input end 4 pin current potentials of A2 are So high potential is output 6 pin of A2 output high potential V _Cc, controlling main circuit and circuits for triggering, make it be in off-state, owing to the clamping action of diode D3, C point current potential is the electronegative potential less than 0.7V simultaneously, triode T2 ends, and makes the pre-burning high-tension circuit be in off-state.

When the key switch forwards ON (connection) state to, because the in-phase input end 1 pin current potential of A1 still is higher than the inverting input 2 pin current potentials of A1, so output 3 pin of A1 output high potential V _CcConstant, just because diode D1 earth-continuity makes triode T1 end V _CcThrough 4 chargings of 6 pairs of capacitor C of resistance R, the inverting input 5 pin current potentials of A2 rise gradually, when 5 pin current potentials are raised to 0.7V, C point current potential is about 1.5V, because triode T2 base potential is higher than 0.7V, triode T2 begins conducting, this moment, the collector electrode of triode T2 was K point and ground short circuit, control pre-burning high-tension circuit is started working its connection, adjusts the size of resistance R 6 and capacitor C 4, and the time that can make the inverting input 5 pin current potentials of A2 be raised to 0.7V was controlled at about 2 seconds.V _CcContinue to capacitor C 4 chargings, when 5 pin current potentials are raised to 2/3V through resistance R 6 _CcThe time, output 6 pin of comparison amplifier A2 are that the upset of J point current potential is electronegative potential 0, when lamp is lighted in the control triggering electric circuit connection, connect main circuit, main circuit provides krypton lamp required predetermined current immediately, and laser therapeutical machine begins operate as normal, and whole process is about about 6 seconds.Therefore this momentary power failure calling protection controller is only operated with a key switch; just finished control automatically to laser therapeutical machine pre-burning high-tension circuit, circuits for triggering and main circuit; set up predefined laser output power and use, make operation sequence become simple and convenient for the doctor.

If during the laser therapeutical machine operate as normal, send a telegram here at once again as sudden power, laser therapeutical machine will quit work, and must forward the key switch to OFF (disconnection) state from ON (connection), and then forward ON (connection) to and start shooting again and could start laser therapeutical machine once more.Otherwise send a telegram here again after the outage, even the key switch still is in ON (connection) position, the work that also can not happen suddenly of pre-burning high-tension circuit, circuits for triggering and the main circuit of laser therapeutical machine, thereby laser therapeutical machine can not lighted once more yet, preionization and set up predefined laser output power, and reason is as follows:

When the key switch is in (ON) on-position, when laser therapeutical machine is exported the power operate as normal of setting, have a power failure V suddenly as external power grid _Cc, pre-burning high-tension circuit, circuits for triggering and the equal dead electricity of main circuit quit work, if when external power grid is sent a telegram here suddenly again, even resistance $R1=R2=R3=R4=\frac{1}{2}R5,$ But because the clamping action of capacitor C 1, C2, resistance R 4 and R5 on the comparator amplifier A1 are in state in parallel, at this moment divider resistance $R3>\frac{R4R5}{R4+R5},$ The in-phase input end 1 pin current potential of comparison amplifier A1 is lower than the inverting input 2 pin current potentials of A1, so output 3 pin of A1 output electronegative potential, and 6 pin of comparison amplifier A2 keep the output high potential, this moment, controlled main circuit, circuits for triggering all were in the state that quits work that cuts off the power supply, simultaneously because the clamping action of diode D3, C point current potential is an electronegative potential, triode T2 ends owing to its base potential is lower than 0.7V, the collector electrode of triode T2 is that the K point disconnects with ground, makes the pre-burning high-tension circuit also be in off-position.Whole laser therapeutical machine is in the state of quitting work always; have only the key switch of working as to forward the OFF position again to; forward the ON position again to and trigger comparison amplifier A1 again; just can make the 3 pin output high potential of A1; the 6 pin output electronegative potential of A2 is controlled laser therapeutical machine chronologically and is entered normal operating state, rebulids and export predefined laser power; thereby the effective protection when having realized sending a telegram here suddenly again after the external power grid sudden power, avoided may taking place of malpractice.

Description of drawings

Accompanying drawing is the circuit theory schematic diagram of this utility model.

Embodiment

Accompanying drawing is the circuit theory schematic diagram that has been applied to the momentary power failure calling protection controller in Solid State Laser that I the developed medical treatment machine, the circuit connecting relation of each components and parts as we know from the figure, anti-interference capacitor C1 is in parallel with R1; Clamp capacitor C2 and R4 and key switch in parallel.In-phase input end 1 pin of comparison amplifier A1 links to each other with resistance R 3, R4, and inverting input 2 pin link to each other with resistance R 1, R2, and resistance R 5 is connected across between 1,3 pin of A1, and output 3 pin of A1 are received inverting input 5 pin of A2 by R6.In-phase input end 4 pin of comparison amplifier A2 link to each other with resistance R 9, R10, inverting input 5 pin link to each other with the collector electrode of triode T1, negative electrode and the capacitor C 4 of diode D3, resistance R 11 is connected across between 4,6 pin of A2, the output of A2 is the control switch that the J point connects Laser Power Devices main circuit and circuits for triggering, and receives the anode of diode D3, D4 by resistance R 12.The base stage of triode T2 links to each other with negative electrode, capacitor C 5 and the resistance R 13 of diode D4, and collector electrode is the control switch that the K point connects the pre-burning high-tension circuit.Key switch one end ground connection, the negative electrode of a terminating resistor R4 and diode D1.The concrete parameter of its components and parts is as follows: two comparison amplifier A1, A2 adopt LM358N, and triode T1, T2 adopt C9013, and diode D1, D2, D3, D4 adopt IN4007, and the key switch adopts the plug-type rotating switch of key, resistance $R1=R2=R3=R4=\frac{1}{2}R5=10\mathrm{K\Ω},$ R7=R12=5.1K Ω, R6=13K Ω, R9=R10=R11=15K Ω, R8=R13=2K Ω, capacitor C 1=C2=4.7 μ F, C3=C5=47 μ F, C4=220 μ F.In actual applications, this controller is only operated with a key switch, just finished the control to laser therapeutical machine pre-burning high-tension circuit, circuits for triggering and main circuit automatically, set up predefined laser output power and use for the doctor, operation sequence is simple and convenient; When the power operate as normal that laser therapeutical machine output is set, as external power grid sudden power incoming call (comprise the outage of ordinary circumstance after incoming call) more immediately again, pre-burning high-tension circuit, circuits for triggering and main circuit that this controller can be controlled medical machine are in the stagnation operating state, have avoided the generation of malpractice.This utility model also can be used for comprising other various protection controls with power utilization instrument device of industrial solid laser machine.

Claims (1)

1. the momentary power failure calling protection controller of a laser therapeutical machine; it is characterized in that: this protection controller is by two comparison amplifier A1, A2 and triode T1, T2; diode D1, D2, D3, D4, key switch, a plurality of resistance and electric capacity are formed, wherein resistance $R1=R2=R3=R4=\frac{1}{2}R5,$ R9=R10=R11; Anti-interference capacitor C1 is in parallel with R1, clamp capacitor C2 and R4 and key switch in parallel: key switch one end ground connection, the negative electrode of other end connecting resistance R4 and diode D1; The output of comparison amplifier A2 is the control switch that the J point connects Laser Power Devices main circuit and circuits for triggering; The collector electrode of triode T2 is the control switch that the K point connects the pre-burning high-tension circuit.