Mercury lamp power supply device for tester

Abstract

The utility model relates to a mercury lamp power supply device for a tester. The mercury lamp power supply device comprises an electronic trigger, a ballast and a relay, a first end of a normally open contact of the relay is electrically connected with one end of the power supply end, a second end of the normally open contact of the relay is electrically connected with a first end of the ballast, and a coil of the relay is electrically connected with the tester control end; the second end of the ballast is electrically connected with the first end of the load; the first end of the electronic trigger is connected to a line between the second end of the ballast and the first end of the load, the second end of the electronic trigger is electrically connected with the first end of the load, and the second end of the load is electrically connected with the other end of the power supply end. According to the mercury lamp power supply device for the tester, the overall structure is simple, maintenance is easy, the success rate of lightening the mercury lamp is high, and voltage and current provided for the mercury lamp after lightening are stable.

Description

Technical Field

[0001] This disclosure relates to the field of power supply technology, and specifically to a mercury lamp power supply device for a testing instrument. Background Technology

[0002] Far-infrared spectrometers are used to monitor the depth of the diffusion layer on silicon wafers and assist in controlling the breakdown voltage of diode products, making them a crucial part of discrete device chip manufacturing. The mercury lamp light source and its supporting power supply system are the core components of the far-infrared spectrometer, determining the accuracy and stability of parameter testing. Insufficient excitation voltage of the mercury lamp power supply will prevent the lamp from lighting properly, and unstable maintenance voltage and current of the mercury lamp power supply will lead to unstable light intensity, thus affecting the accuracy and stability of the test data.

[0003] Currently, the original imported power supplies used in far-infrared spectroscopy testers' mercury lamp light sources show signs of aging with increasing years of use, resulting in low excitation voltage and causing some normally functioning mercury lamps to fail to light up. Furthermore, the original imported power supplies are complex in structure, difficult to repair, and both the power supply and the light source system are discontinued, making it impossible to procure original power supplies. Therefore, there is an urgent need for a power supply device to replace the original imported power supply for the mercury lamps in the testers. Utility Model Content

[0004] To address the aforementioned technical problems, this disclosure provides a mercury lamp power supply device for a testing instrument.

[0005] In a first aspect, this disclosure provides a mercury lamp power supply device for a testing instrument, comprising:

[0006] Electronic triggers, ballasts, and relays;

[0007] The first terminal of the normally open contact of the relay is electrically connected to one end of the power supply terminal, the second terminal of the normally open contact of the relay is electrically connected to the first end of the ballast, and the coil of the relay is electrically connected to the control terminal of the tester.

[0008] The second terminal of the ballast is electrically connected to the first terminal of the load.

[0009] The first terminal of the electronic trigger is connected to the line between the second terminal of the ballast and the first terminal of the load. The second terminal of the electronic trigger is electrically connected to the first terminal of the load, and the second terminal of the load is electrically connected to the other end of the power supply.

[0010] Optionally, the mercury lamp power supply for the tester also includes a capacitor;

[0011] The capacitor is connected in parallel between the first end of the ballast and the other end of the power supply.

[0012] Optionally, the mercury lamp power supply for the tester also includes a fuse;

[0013] The fuse is connected in series between the first end of the normally open contact and the first end of the power supply.

[0014] Optionally, the mercury lamp power supply for the tester also includes a voltmeter;

[0015] The voltmeter is connected in parallel between the first and second terminals of the load.

[0016] Optionally, the mercury lamp power supply for the tester also includes an ammeter;

[0017] An ammeter is connected in series between the second terminal of the ballast and the first terminal of the load.

[0018] Optionally, the ballast has an output power of 125W and an operating frequency of 50KHz.

[0019] Optionally, the output pulse voltage of the electronic trigger is 2.5-4.5kV.

[0020] Optionally, the relay coil operates at 5V, and the normally open contacts have a rated voltage of 220V and a rated current of 12A.

[0021] Optionally, the capacitor has a rated voltage of 400V and a capacitance of 18μF.

[0022] Optionally, the rated current of the fuse is 5A.

[0023] The technical solution provided in this disclosure has the following advantages compared with the prior art:

[0024] The mercury lamp power supply device for testing instruments disclosed herein uses a series relay with normally open contacts to connect the relay input to the testing instrument's control signal. This allows the testing instrument to directly control the mercury lamp's power supply to turn on and off. A ballast and trigger generate a high voltage to illuminate the mercury lamp upon power-up. After the lamp is lit, the ballast reduces the voltage and limits the current, stabilizing the current within the rated range. This mercury lamp power supply device for testing instruments has a simple overall structure, is easy to maintain, has a high success rate in illuminating mercury lamps, and provides stable voltage and current to the lamp after lighting. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0026] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of a mercury lamp power supply device for a testing instrument provided in an embodiment of this disclosure;

[0028] Figure 2 This is a schematic diagram of the structure of another mercury lamp power supply device for a testing instrument provided in an embodiment of this disclosure. Detailed Implementation

[0029] To better understand the above-mentioned objectives, features, and advantages of this disclosure, the solutions disclosed herein will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0030] Numerous specific details are set forth in the following description in order to provide a full understanding of this disclosure, but this disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some, and not all, of the embodiments of this disclosure.

[0031] Figure 1 This is a schematic diagram of the structure of a mercury lamp power supply device for a testing instrument provided in an embodiment of this disclosure, as shown below. Figure 1 As shown, the mercury lamp power supply device 10 of the test instrument includes an electronic trigger 11, a ballast 12 and a relay 13;

[0032] The first end of the normally open contact 131 of relay 13 is electrically connected to one end of the power supply terminal, the second end of the normally open contact 131 of relay 13 is electrically connected to the first end of ballast 12, and the coil 132 of relay 13 is electrically connected to the control terminal 30 of the tester. The second end of ballast 12 is electrically connected to the first end of the load. The first end of electronic trigger 11 is connected to the line between the second end of ballast 12 and the first end of load mercury lamp 20. The second end of electronic trigger 11 is electrically connected to the first end of load mercury lamp 20, and the first end of load mercury lamp 20 is electrically connected to the other end of the power supply terminal.

[0033] In this embodiment, the power supply is 220V, 50Hz. The input coil 132 of the relay 13 is connected to the control terminal 30 of the tester. The control terminal 30 can input a control signal to energize or de-energize the coil 132. When the coil 132 of the relay 13 is energized, the normally open contact 131 closes and conducts, and the circuit of the mercury lamp power supply device 10 of the tester is turned on, so that the tester can directly control the opening and closing of the mercury lamp power supply device 10. After the circuit of the mercury lamp power supply device 10 of the tester is turned on, the power supply voltage is applied to the main body of the power supply device composed of the ballast 12 and the electronic trigger 11. At this time, the power supply voltage is applied to the switching heating wire of the electronic trigger 11 through the ballast 12. The heating wire heats up, and the bimetallic strip deforms due to heat, causing the contacts of the electronic trigger 11 to open. The ballast 12 generates a self-induced electromotive force, which is superimposed with the power supply voltage to enable a high voltage to be obtained across the mercury lamp 20, allowing the gas inside the mercury lamp 20 to be ionized and conduct. When the mercury lamp 20 is emitting light normally, the ballast 12 can reduce the voltage and limit the current, so that the current of the mercury lamp 20 is stabilized within the rated current range.

[0034] This embodiment of the invention uses a series relay with normally open contacts to connect the relay input to the control terminal of the tester. This allows the tester to directly control the on / off state of the mercury lamp power supply. A ballast and trigger generate a high voltage to ignite the mercury lamp upon power-up. After the lamp is lit, the ballast reduces the voltage and limits the current, stabilizing the current within the rated range. This mercury lamp power supply has a simple overall structure, is easy to maintain, has a high success rate in igniting the mercury lamp, and provides stable voltage and current to the lamp after it is lit.

[0035] Figure 2 This is a schematic diagram of the structure of another mercury lamp power supply device for a testing instrument provided in an embodiment of this disclosure. In some embodiments, such as... Figure 2 As shown, the mercury lamp power supply device 10 for the test instrument also includes a capacitor 14; the capacitor 14 is connected in parallel between the first end of the ballast 12 and the other end of the power supply.

[0036] This embodiment utilizes the characteristic that the voltage across a capacitor cannot change abruptly to smooth and stabilize the trigger signal of the electronic trigger after the mercury lamp power supply circuit of the tester is turned on, ensuring that the electronic trigger can generate a reliable trigger pulse at the correct time and avoiding false triggering or unstable triggering.

[0037] In some implementations, such as Figure 2 As shown, the mercury lamp power supply device 10 for the tester also includes a fuse 15; the fuse 15 is connected in series between the first end of the normally open contact 131 and one end of the power supply.

[0038] This embodiment of the disclosure connects a mercury lamp power supply device for a fuse protection tester in series between the power supply terminal and the normally open contact of the relay.

[0039] In some implementations, such as Figure 2 As shown, the mercury lamp power supply device 10 for the test instrument also includes a voltmeter 16; the voltmeter 16 is connected in parallel between the first and second terminals of the load mercury lamp 20.

[0040] In this embodiment, a voltmeter is connected in parallel between the two ends of the load, which can monitor the voltage supplied to the load by the mercury lamp power supply device of the test instrument in real time.

[0041] In some implementations, such as Figure 2 As shown, the mercury lamp power supply device 10 for the test instrument also includes an ammeter; the ammeter 17 is connected in series between the second end of the ballast 12 and the first end of the load mercury lamp 20.

[0042] In this embodiment, an ammeter is connected in series between the ballast and the load, enabling real-time monitoring of the current supplied to the load by the mercury lamp power supply device of the testing instrument.

[0043] In some embodiments, the ballast selected in this disclosure has an output power of 125W and an operating frequency of 50kHz. The output pulse voltage of the electronic trigger is 2.5-4.5kV. The selected relay has a coil operating voltage of 5V, a normally open contact rated voltage of 220V, and a rated current of 12A. The capacitor has a rated voltage of 400V and a capacitance of 18μF. The fuse has a rated current of 5A.

[0044] This embodiment of the invention uses a ballast and a trigger to form the main power supply unit, replacing the complex electronic circuit structure of the original mercury lamp power supply. It achieves the most basic functions of mercury lamp excitation and lighting, as well as constant current maintenance. By connecting a normally open contact of a relay in series and connecting the relay coil to the control signal circuit of the tester, the tester can directly control the start and stop of the mercury lamp power supply. A voltmeter and an ammeter are added to monitor the voltage and current supplied to the mercury lamp by the power supply device, ensuring stability. A capacitor connected in parallel between the first end of the ballast and the other end of the power supply ensures a smooth and stable trigger signal applied to the electronic trigger, improving the success rate of mercury lamp excitation and lighting. The mercury lamp power supply device for the tester provided in this embodiment has a simple overall structure, is easy to maintain, has a high success rate of mercury lamp lighting, and provides stable and monitorable voltage and current after lighting.

[0045] The above description is merely a preferred embodiment of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this disclosure.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0047] The above description is merely a specific embodiment of this disclosure, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A mercury lamp power supply device for a testing instrument, characterized in that, include: Electronic triggers, ballasts, and relays; The first end of the normally open contact of the relay is electrically connected to one end of the power supply terminal, the second end of the normally open contact of the relay is electrically connected to the first end of the ballast, and the coil of the relay is electrically connected to the control terminal of the tester. The second end of the ballast is electrically connected to the first end of the load; The first end of the electronic trigger is connected to the line between the second end of the ballast and the first end of the load. The second end of the electronic trigger is electrically connected to the first end of the load, and the second end of the load is electrically connected to the other end of the power supply.

2. The mercury lamp power supply device for a tester according to claim 1, characterized by The device also includes a capacitor; The capacitor is connected in parallel between the first end of the ballast and the other end of the power supply.

3. The mercury lamp power supply device for a tester according to claim 1, characterized by The device also includes a fuse; The fuse is connected in series between the first end of the normally open contact and one end of the power supply terminal.

4. The mercury lamp power supply device for a tester according to claim 1, characterized by The device also includes a voltmeter; The voltmeter is connected in parallel between the first and second terminals of the load.

5. The mercury lamp power supply device for a tester according to claim 1, characterized by The device also includes an ammeter; The ammeter is connected in series between the second end of the ballast and the first end of the load.

6. The mercury lamp power supply device for a tester according to claim 1, characterized by The ballast has an output power of 125W and an operating frequency of 50KHz.

7. The mercury lamp power supply device for a tester according to claim 1, characterized by The output pulse voltage of the electronic trigger is 2.5-4.5kV.

8. The mercury lamp power supply device for a tester according to claim 1, characterized by The relay coil operates at 5V, and the normally open contacts have a rated voltage of 220V and a rated current of 12A.

9. The mercury lamp power supply device for a tester according to claim 2, characterized by The capacitor has a rated voltage of 400V and a capacitance of 18μF.

10. The mercury lamp power supply device for a tester according to claim 3, characterized by The rated current of the fuse is 5A.

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