Pre-combustion circuit applied to external triggering of xenon lamp

Abstract

Aiming at the problems existing in the prior art, the pre-combustion circuit applied to external triggering of the xenon lamp comprises a constant current source module U1, a capacitor C1, a capacitor C2, a resistor R1, a resistor R2, a switching device Y1 and a triggering circuit U2, the constant current source module U1 provides subsequent power and energy for the circuit, the capacitor C1, the resistor R1, the switching device Y1 and the triggering circuit U2 form a high-voltage electric field generating circuit, and the high-voltage electric field generating circuit is connected with the capacitor C2. The circuit outputs to the periphery of a load xenon lamp and is not in direct contact with the xenon lamp, the resistor R2 is used as an output detection function to detect an output result in real time, the capacitor C2 is used as an output filtering function to reduce output fluctuation, and economic benefits are remarkably improved at extremely low cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of xenon lamp preburn, specifically, a preburn circuit applied to xenon lamp external triggering. BACKGROUND

[0002] Photon technology is widely used in the medical field, especially in the two directions of photon diagnosis and photon therapy, which has made remarkable progress. Photon diagnosis focuses on using photons as information carriers for medical imaging, detection, and early diagnosis; while photon therapy focuses more on photons as energy carriers, mainly used for treating various diseases such as cancer, skin diseases, etc., such as photodynamic therapy (PDT) and laser therapy.

[0003] Currently, whether it is photon diagnosis or photon therapy, the importance of xenon lamp as a light source component is self-evident. Xenon lamps are widely used in photon diagnostic and therapeutic equipment, especially in scenarios that require powerful, high-brightness, and high-stability light sources, such as endoscopes, CT scans, X-ray imaging systems, laser therapy equipment, etc.

[0004] However, there are currently three main ways to light up xenon lamps: alternating high-voltage ignition, direct current high-voltage ignition, and pulse high-voltage ignition. These ignition methods have achieved certain results in practical applications, but they also bring some challenges and problems:

[0005] 1. Alternating high-voltage ignition: This method uses alternating current to generate high voltage to light up the xenon lamp. This method has a certain stability, but it can cause significant electromagnetic interference in the device, which may affect the normal operation of other precision equipment.

[0006] 2. Direct current high-voltage ignition: This method uses a direct current power supply to provide high voltage to light up the xenon lamp. Compared to alternating high-voltage ignition, direct current high-voltage ignition can provide more stable current and voltage, but it requires the use of special power supply equipment, increasing the cost.

[0007] 3. Pulse high-voltage ignition: This method uses pulse current to provide high voltage, which is suitable for light source applications that require instantaneous high energy and can provide higher brightness. However, due to the instantaneous output of high-voltage pulses, this method usually generates strong electromagnetic interference, and the design and manufacture of the device need to consider more electromagnetic compatibility and protection measures.

[0008] The common point of the above-mentioned ignition methods is that they all need high-voltage output circuit to directly contact with the xenon lamp electrode, which not only increases the design complexity of the system, but also significantly increases the cost of high-voltage protection.

[0009] In order to ensure the safety of the equipment, it is usually necessary to add high-voltage isolation, protection design and other measures in the system. These protection measures will cause additional cost expenditure, and due to the existence of high-voltage output, there is also a certain risk of high-voltage leakage, which may have an unsafe impact on the user and the equipment. SUMMARY

[0010] In view of the problems in the prior art, the utility model provides a pre-burning circuit applied to external triggering of a xenon lamp, which solves the problems of high cost and high risk of high-voltage protection through a simple circuit structure.

[0011] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0012] A pre-burning circuit applied to external triggering of a xenon lamp, comprising: a constant current source module U1, a capacitor C1, a capacitor C2, a resistor R1, a resistor R2, a switching device Y1 and a trigger circuit U2; the power supply pin 1 of the constant current source module U1 is connected with the resistor R1 and a load through wires, the other end of the resistor R1 is connected with the capacitor C1, the pin 1 of the switching device Y1 is connected through wires, the pin 2 of the switching device Y1 is connected with the pin 1 of the trigger circuit U2 through wires, the pin 2 of the trigger circuit U2 is connected with the power supply pin 2 of the constant current source module U1, the capacitor C2 and the load through wires, and the pin 3 of the trigger circuit U2 is connected with the load through wires.

[0013] The constant current source module U1 provides subsequent power and energy for the circuit.

[0014] The capacitor C1, the resistor R1, the switching device Y1 and the trigger circuit U2 constitute a high-voltage electric field generating circuit, which outputs to the surroundings of the load xenon lamp and does not directly contact the xenon lamp.

[0015] The resistor R2 is used as an output detection function and detects the output result in real time.

[0016] The capacitor C2 is used as an output filtering function and reduces the fluctuation of the output.

[0017] Advantageous effects:

[0018] 1. The resistor, the capacitor, the switching device and the trigger circuit are simply and orderly combined to form a stable high-voltage electric field circuit, and the working reliability is extremely high.

[0019] 2. The circuit is not directly connected with the xenon lamp electrode, thereby avoiding damage and influence of the high-voltage electric field on the circuit connected with the xenon lamp electrode.

[0020] 3. The circuit has extremely low cost and high economic benefit. DRAWINGS

[0021] Figure 1 It is the basic circuit of the utility model.

[0022] Figure 2 The utility model discloses a circuit that increases filtering.

[0023] Figure 3 The utility model discloses a circuit that increases filtering and detection function. DETAILED DESCRIPTION

[0024] The technical content of the utility model will be further explained in detail below in combination with the drawings and specific embodiments.

[0025] Referring to the drawings Figure 1 A pre-ignition circuit applied to external triggering of a xenon lamp, comprising: a constant current source module U1, a capacitor C1, a capacitor C2, a resistor R1, a resistor R2, a switching device Y1, a trigger circuit U2; a power supply pin 1 of the constant current source module U1 is connected with the resistor R1 and a load through wires, the other end of the resistor R1 is connected with the capacitor C1, a pin 1 of the switching device Y1 is connected through a wire, a pin 2 of the switching device Y1 is connected with a pin 1 of the trigger circuit U2 through a wire, a pin 2 of the trigger circuit U2 is connected with a power supply pin 2 of the constant current source module U1, the capacitor C2 and the load through wires, and a pin 3 of the trigger circuit U2 is connected with the load through a wire.

[0026] The constant current source module U1 provides subsequent power and energy for the circuit.

[0027] The capacitor C1, the resistor R1, the switching device Y1 and the trigger circuit U2 form a high-voltage electric field generation circuit, and the circuit outputs to the surroundings of the load xenon lamp and does not directly contact the xenon lamp.

[0028] The resistor R2 is used as an output detection function and detects the output result in real time.

[0029] The capacitor C2 is used as an output filtering function and reduces the fluctuation of the output.

[0030] Embodiment 1

[0031] Referring to the drawings Figure 1 When the constant current source module U1 outputs, the voltage charges the capacitor C1 and the switching device Y1 through the resistor R1, the capacitor C1 and the switching device Y1 simultaneously act on the trigger circuit U2, at this time, the trigger circuit U2 outputs a high-voltage electric field, the high-voltage electric field is introduced to the surroundings of the load xenon lamp through wires, the two electrodes of the load xenon lamp are connected with the output of the constant current source module, and the load xenon lamp is excited under the high-voltage electric field, a large number of electrons with fixed motion direction are formed in the load xenon lamp, the electrons gather to form an electron beam, the internal channel of the two electrodes of the xenon lamp is formed, and the output of the constant current source provides continuous energy for the xenon lamp, and the xenon lamp is stably lit.

[0032] Embodiment 2:

[0033] Referring to the drawings Figure 2 When the constant current source module U1 outputs, the voltage is first filtered by the capacitor C2 to reduce output noise, then enters the resistor R2, the voltage at the end of the resistor R2 represents the working state of the real-time circuit, and finally charges the capacitor C1 and the switching device Y1 through the resistor R1, the capacitor C1 and the switching device Y1 simultaneously act on the trigger circuit U2, at this time the trigger circuit U2 will output a high voltage electric field, the high voltage electric field is introduced around the load xenon lamp through a wire, the two electrodes of the load xenon lamp are connected with the output of the constant current source module, the load xenon lamp will be excited under the high voltage electric field, a large number of electrons with fixed motion direction are formed in the load xenon lamp, the electrons gather to form an electron beam, the internal channel of the two electrodes of the xenon lamp is formed at the same time, and the output of the constant current source provides continuous energy for the xenon lamp, and the xenon lamp is stably lit.

[0034] Embodiment 3

[0035] Referring to the drawings Figure 3 When the constant current source module U1 outputs, the voltage is first filtered by the capacitor C2 to reduce output noise, then enters the resistor R2, the voltage at the end of the resistor R2 represents the working state of the real-time circuit, and finally charges the capacitor C1 and the switching device Y1 through the resistor R1, the capacitor C1 and the switching device Y1 simultaneously act on the trigger circuit U2, at this time the trigger circuit U2 will output a high voltage electric field, the high voltage electric field is introduced around the load xenon lamp through a wire, the two electrodes of the load xenon lamp are connected with the output of the constant current source module, the load xenon lamp will be excited under the high voltage electric field, a large number of electrons with fixed motion direction are formed in the load xenon lamp, the electrons gather to form an electron beam, the internal channel of the two electrodes of the xenon lamp is formed at the same time, and the output of the constant current source provides continuous energy for the xenon lamp, and the xenon lamp is stably lit.

[0036] The above only describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A pre-ignition circuit for external triggering of a xenon lamp, characterized in that, include: The circuit comprises a constant current source module U1, capacitors C1 and C2, resistors R1 and R2, a switching device Y1, and a trigger circuit U2. The power supply pin 1 of the constant current source module U1 is connected to R1 and the load via a wire. The other end of resistor R1 is connected to capacitor C1. Pin 1 of the switching device Y1 is connected via a wire. Pin 2 of the switching device Y1 is connected to pin 1 of the trigger circuit U2 via a wire. Pin 2 of the trigger circuit U2 is connected to the power supply pin 2 of the constant current source module U1, capacitor C2, and the load via a wire. Pin 3 of the trigger circuit U2 is connected to the load via a wire. The constant current source module U1 provides subsequent power and energy to the circuit. Capacitor C1, resistor R1, switching device Y1, and trigger circuit U2 form a high-voltage electric field generation circuit. This circuit outputs to the vicinity of the xenon lamp load without direct contact with the lamp. Resistor R2 is used for output detection, monitoring the output result in real time. Capacitor C2 is used for output filtering, reducing output fluctuations.

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