WO2021223252A1 - 一种点火电路及装置 - Google Patents

一种点火电路及装置 Download PDF

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Publication number
WO2021223252A1
WO2021223252A1 PCT/CN2020/090076 CN2020090076W WO2021223252A1 WO 2021223252 A1 WO2021223252 A1 WO 2021223252A1 CN 2020090076 W CN2020090076 W CN 2020090076W WO 2021223252 A1 WO2021223252 A1 WO 2021223252A1
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circuit
capacitor
resistor
terminal
output
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PCT/CN2020/090076
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English (en)
French (fr)
Inventor
匡骁
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深圳市骁阳工程咨询有限公司
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Priority to DE212020000085.9U priority Critical patent/DE212020000085U1/de
Publication of WO2021223252A1 publication Critical patent/WO2021223252A1/zh

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/16—Controlling the light source by timing means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

Definitions

  • This application relates to the field of sunlight simulation technology, and in particular to an ignition circuit and device.
  • the sunlight simulation test lamp is triggered by an ignition trigger.
  • the ignition trigger boosts the coil and stops triggering after reaching the condition that the test lamp is lit.
  • the traditional ignition trigger circuit cannot guarantee the triggering time. When the triggering time is too long, it is easy to shorten the life of the test lamp and other parts, or even damage the test lamp and other parts, and the safety is low.
  • the traditional sunlight simulation test lamp ignition trigger technology solution cannot guarantee the trigger time.
  • the trigger time is too long, it is easy to shorten the life of the test lamp and other parts, or even damage the test lamp and other parts, and the safety is low. The problem.
  • One of the objectives of the embodiments of the present application is to provide an ignition circuit and device, which aims to solve the problem that the ignition trigger technology scheme of traditional sunlight simulation test lamps cannot guarantee the trigger time.
  • the trigger time is too long, it is easy to cause The life span of test lamps and other parts is shortened, and even the test lamps and other parts are damaged, which is a problem of low safety.
  • an ignition circuit including:
  • the timing circuit is configured to output a control signal of a preset duration
  • a switch circuit connected to the timing circuit, configured to be turned on only when receiving the control signal, and transmit a power supply enable signal;
  • a rectifier circuit connected to the switch circuit, and configured to convert an alternating current signal into a direct current signal and output it when the power supply enable signal is received;
  • An oscillating circuit connected to the rectifier circuit, and configured to output a high-frequency pulse signal after receiving the direct current signal;
  • the transformer circuit is connected to the oscillating circuit and the test lamp, and is configured to boost the high-frequency pulse signal and output it to the test lamp to light the test lamp.
  • the second switch tube and the third switch tube are respectively implemented by NMOS tubes.
  • an ignition device including:
  • the power supply circuit is connected to the timing circuit, and is configured to output a power supply signal to the timing circuit to provide electricity for the operation of the timing circuit.
  • the ignition circuit and device provided by the embodiments of the application have the beneficial effect of outputting a control signal of a preset duration through the timing circuit, so that the working duration of the oscillation circuit is limited to the timing circuit, and the test lamp can complete the ignition trigger within a certain duration. , To avoid the long trigger time, which will shorten the life of the test lamps and other parts, or even damage the test lamps and other parts, and improve the safety of the overall circuit.
  • FIG. 1 is a schematic diagram of a module structure of an ignition circuit provided by the first aspect of an embodiment of the application;
  • FIG. 2 is a schematic diagram of a module structure of an ignition circuit provided by another embodiment of the application.
  • Fig. 3 is a schematic circuit diagram of an example of the ignition circuit shown in Fig. 2;
  • FIG. 4 is a schematic diagram of the module structure of an ignition device provided in the second aspect of the embodiments of the application.
  • first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined with “first” and “second” may explicitly or implicitly include one or more of these features. In the description of the present application, “multiple” means two or more than two, unless otherwise specifically defined.
  • FIG. 1 is a schematic diagram of the module structure of an ignition circuit provided by an embodiment of this application.
  • FIG. 1 is a schematic diagram of the module structure of an ignition circuit provided by an embodiment of this application.
  • the details are as follows:
  • the test lamp 100 is used for sunlight simulation test.
  • the ignition circuit includes a timing circuit 10, a switch circuit 20, a rectifier circuit 30, an oscillation circuit 40, and a transformer circuit 50.
  • the timing circuit 10 is connected to the switch circuit 20, the switch circuit 20 is connected to the rectifier circuit 30, the rectifier circuit 30 is connected to the oscillating circuit 40, the oscillating circuit 40 is connected to the transformer circuit 50, and the transformer circuit 50 is connected to the test lamp 100.
  • the timing circuit 10 is configured to output a control signal of a preset duration.
  • the preset duration can be set according to actual conditions. For example, if the preset duration is set to 1 second, the timing circuit 10 only outputs the control signal within 1 second, and then stops outputting the control signal.
  • the switch circuit 20 is configured to be turned on when receiving the control signal and output a power supply enable signal.
  • the switch circuit 20 is implemented by an electronic switch, which has low power consumption after being turned on and saves energy consumption.
  • the switch circuit 20 is turned on only when the control signal is received.
  • the switch circuit 20 is turned off and no longer outputs the power supply enable signal.
  • the rectifier circuit 30 is configured to convert an alternating current signal into a direct current signal and output it when receiving the power supply enable signal.
  • the rectifier circuit 30 has the function of converting AC to DC, and the DC electric signal is output to the oscillating circuit 40 as a power supply signal before the oscillating circuit 40 starts to work. Therefore, the timing circuit 10 controls the switch circuit 20 to be turned on within the preset time period, and the switch circuit 20 correspondingly outputs the power supply enable signal within a certain period of time, so that the rectifier circuit 30 operates within the corresponding period of time and outputs a direct current signal to the oscillating circuit 40. Accordingly, the oscillating circuit 40 is made to work within a specific time period.
  • the oscillating circuit 40 is configured to output a high-frequency pulse signal after receiving the direct current signal.
  • the oscillating circuit 40 converts the direct current signal into a high-frequency pulse signal and outputs it, so that the back-end transformer circuit 50 boosts the high-frequency pulse signal to achieve an amplitude that can illuminate the test lamp 100 on the simulated test lamp board. value.
  • the transformer circuit 50 is configured to boost the high-frequency pulse signal and output it to the test lamp 100.
  • the transformer circuit 50 is implemented by a transformer, which boosts the high-frequency pulse signal to reach an amplitude capable of illuminating the test lamp 100 on the simulated test lamp board, thereby lighting the test lamp 100.
  • the above-mentioned ignition circuit outputs a control signal of a preset duration through the timing circuit 10, so that the operating duration of the oscillation circuit 40 is limited to the timing circuit 10, so that the test lamp 100 can complete the trigger ignition within a certain duration, and the ignition duration is accurate and reliable. It can prevent the long trigger time from shortening the life of the test lamp 100 and other parts, and even damage the test lamp 100 and other parts, thereby improving the safety of the overall circuit.
  • FIG. 2 is a schematic diagram of the module structure of an ignition circuit provided by another embodiment of this application.
  • FIG. 2 is a schematic diagram of the module structure of an ignition circuit provided by another embodiment of this application.
  • FIG. 2 is a schematic diagram of the module structure of an ignition circuit provided by another embodiment of this application.
  • FIG. 2 is a schematic diagram of the module structure of an ignition circuit provided by another embodiment of this application.
  • the parts related to this embodiment are shown, which are described in detail as follows:
  • the aforementioned ignition circuit further includes a filter circuit 60.
  • the filter circuit 60 is connected to the oscillating circuit 40 and the transformer circuit 50.
  • the filter circuit 60 is configured to filter the high-frequency pulse signal and output it to the transformer circuit 50.
  • the filter circuit 60 can filter out clutter interference signals.
  • FIG. 3 is an example circuit schematic diagram of the ignition circuit shown in FIG. 2.
  • FIG. 3 is an example circuit schematic diagram of the ignition circuit shown in FIG. 2.
  • the timing circuit 10 includes a timer U27, a first adjustable resistor RP3, a second adjustable resistor RP1, a first resistor R69, a first capacitor C23, a second capacitor C21, and a third capacitor. C24.
  • timer U27 is implemented using an integrated circuit, and this embodiment is implemented using a 555 chip.
  • the node common to the reset terminal RS of the timer U27, the first terminal of the first capacitor C23, the power supply terminal V+ of the timer U27, and the first terminal of the first resistor R69 is connected to the switch circuit 20, and the control terminal CV of the timer U27 is connected to
  • the first terminal of the second capacitor C21 is connected in common, the trigger terminal TR of the timer U27, the discharge terminal DIS of the timer U27, the first terminal of the third capacitor C24, the first fixed terminal of the first adjustable resistor RP3 and the second terminal
  • the sliding ends of an adjustable resistor RP3 are connected in common.
  • the second fixed end of the first adjustable resistor RP3 is shared with the first fixed end of the second adjustable resistor RP1, and the second fixed end of the second adjustable resistor RP1 is shared with the second end of the first resistor R69 Connected, the sliding end of the second adjustable resistor RP1 is connected to the threshold terminal THR of the timer U27; the output terminal O of the timer U27 is connected to the switch circuit 20; the second end of the first capacitor C23 and the second end of the second capacitor C21 The second terminal of the second terminal and the second terminal of the third capacitor C24 are grounded.
  • the power supply terminal V+ of the timer U27 is connected to the power supply circuit 70, and when the power supply signal VCC output by the power supply circuit 70 is received, the timer U27 starts to work.
  • the working principle of each pin of the timer U27 is: the control terminal THR controls the threshold voltage of the chip.
  • the control terminal TRH is empty, the default two threshold voltages are 1/3VCC and 2/3VCC; the voltage of the trigger terminal TR drops to 1. /3VCC or threshold voltage, the trigger terminal TR outputs high level; when the voltage of the threshold terminal THR rises to 2/3VCC or threshold voltage, the threshold terminal THR outputs low level; output terminal O outputs high level or low level
  • the reset terminal RS is connected to the high level, the timer U27 works.
  • the reset terminal RS is grounded, the timer U27 resets and outputs a low level from the output terminal O; the discharge terminal is connected to the OC gate (Open Collector) inside the timer U27 Open the door).
  • OC gate Open Collector
  • the timer U27 After the timer U27 works, it outputs a control signal to the switch circuit 20 within a preset period of time, so that the switch circuit 20 is turned on. After the preset period of time is exceeded, the timer U27 stops outputting the control circuit, and the switch circuit 20 is turned off until the next time. It turns on again when the control signal is received again.
  • the high-level signal output by the output terminal O of the timer U27 is the above-mentioned control signal.
  • the above-mentioned switch circuit 20 includes a second resistor R5, a third resistor R6, a first switch tube Q3, and a relay K1; the relay K1 includes a winding and a contact group.
  • the first end of the second resistor R5 and the first end of the third resistor R6 are connected to the timing circuit 10
  • the second end of the second resistor R5 is connected to the controlled end of the first switching tube Q3, and the input of the first switching tube Q3
  • the second end of the third resistor R6 is connected to the second end of the winding; the normally open contact of the contact group is connected to the rectifier circuit 30, and the output end of the first switch tube Q3 is grounded.
  • the first fixed contact is connected to the oscillating circuit 40, and the second fixed contact of the contact group is suspended.
  • the contact group of the relay K1 is normally open, and is only closed when a control signal is received.
  • the first end of the second resistor R5 is connected to the output terminal O of the timer U27.
  • the first switching tube Q3 is turned on, so that the winding of the relay K1 is energized, thereby controlling the normal operation of the contact group.
  • the open contact is in contact with the first fixed contact.
  • the first switching tube Q3 is implemented by an NMOS tube, and the gate, drain, and source of the NMOS tube are respectively used as the controlled end, input terminal and output terminal of the first switching tube Q3.
  • the aforementioned rectifier circuit 30 includes a first zener diode TZ1, a fourth capacitor C7, a rectifier bridge BD1, and a connector J1.
  • the power transmission end of the connector J1, the first end of the fourth capacitor C7, the cathode of the first zener diode TZ1 and the first end of the rectifier bridge BD1 are connected together, and the ground end of the connector J1 and the fourth capacitor C7
  • the second end of the rectifier bridge TZ1, the anode of the first zener diode TZ1, and the second end of the rectifier bridge BD1 are commonly connected, the third end of the rectifier bridge BD1 is connected to the oscillation circuit 40, and the fourth end of the rectifier bridge BD1 is grounded.
  • the connector is connected to an external rectifier, and the rectifier is used to rectify the mains and output an alternating current signal to the connector, and the connector transmits the alternating current signal to the rectifier bridge BD1.
  • the fourth capacitor C7 is a filter capacitor, which is used to filter the alternating current signal.
  • the first zener diode TZ1 is used for voltage stabilization to protect the rectifier bridge BD1 and other electronic components from being damaged by instantaneous large currents. As shown in Figure 3, the rectifier bridge BD1 is composed of four diodes.
  • the above-mentioned oscillation circuit 40 includes a half-bridge driving oscillation chip U1, a fourth resistor R2, a fifth resistor R1, a sixth resistor R3, a seventh resistor R4, a fifth capacitor C6, and a sixth capacitor C2.
  • the first end of the fifth capacitor C6 and the cathode of the second Zener diode D2 are connected to the rectifier circuit 30.
  • the anode of the second Zener diode D2 is connected to the first end of the fourth resistor R2.
  • the second terminal, the first terminal of the sixth capacitor C2 and the power supply terminal VS of the half-bridge drive oscillation chip U1 are connected together.
  • the resistance adjustment terminal RF of the half-bridge drive oscillation chip U1 is connected to the first terminal of the fifth resistor R1.
  • the second end of the resistor R1, the first end of the seventh capacitor C1, and the capacitance adjustment end CF of the half-bridge driving oscillation chip U1 are connected in common.
  • the output terminal OUT of the half-bridge driving oscillating chip U1 is connected to the first terminal of the sixth resistor R3, the floating power terminal BOOT of the half-bridge driving oscillating chip U1 is connected to the first terminal of the seventh resistor R4, and the first terminal of the eighth capacitor C3
  • the low-side drive output terminal LVG of the half-bridge drive oscillator chip U1 and the cathode of the diode D1 are connected together; the anode of the diode D1 is connected to the power supply terminal VS of the half-bridge drive oscillator chip U1; the second end of the eighth capacitor C3 is the half bridge
  • the high-side drive output terminal HVG of the driving oscillating chip U1, the output terminal of the second switching tube Q1 and the input terminal of the third switching tube Q2 are connected together; the second end of the sixth resistor R3 is connected to the controlled terminal of the second switching tube Q1 ,
  • the second end of the seventh resistor R4 is connected to the controlled end of the third switch tube Q2, and the
  • the ground terminal GND of the half-bridge driving oscillator chip U1, the second terminal of the fifth capacitor C6, the second terminal of the sixth capacitor C2, the second terminal of the seventh capacitor C1, and the output terminal of the third switch Q2 are grounded.
  • the model of the half-bridge driving oscillation chip U1 is L6569A
  • the second switching tube Q1 and the third switching tube Q2 form a bridge inverter circuit.
  • the half-bridge driving the high-side driving output terminal of the oscillation chip U1 The HVG and the low-side drive output terminal LVG alternately output high-level signals, thereby controlling the second switching tube Q1 and the third switching tube Q2 to alternately conduct to generate a high-frequency pulse signal.
  • the second switching tube Q1 and the third switching tube Q2 are implemented by NMOS tubes, and the gate, drain and source of the NMOS tube are respectively used as the controlled end, input and output of the second switching tube Q1/the third switching tube Q2 end.
  • the aforementioned transformation circuit 50 includes a step-up transformer.
  • the primary coil of the step-up transformer is connected to the oscillating circuit 40, and the secondary coil of the step-up transformer is connected to the test lamp 100.
  • the step-up transformer can step up the high-frequency pulse signal to a voltage of 10000V, thereby illuminating the test lamp 100.
  • the aforementioned filter circuit 60 includes a ninth capacitor C5 and a tenth capacitor C8.
  • the first end of the ninth capacitor C5 is connected to the oscillating circuit 40, the node common to the second end of the ninth capacitor C5 and the first end of the tenth capacitor C8 is connected to the oscillating circuit 40, and the second end of the tenth capacitor C8 is grounded.
  • the first terminal of the ninth capacitor C5 is connected to the input terminal of the second switch tube Q1, the second terminal of the ninth capacitor C5, the first terminal of the tenth capacitor C8, the output terminal of the second switch tube Q1, and the third terminal
  • the input ends of the switch tube Q2 are connected in common, and the second end of the tenth capacitor C8 is grounded.
  • the filter circuit 60 filters out interference and clutter, making the overall operation of the circuit more stable.
  • FIG. 4 is a schematic diagram of the module structure of an ignition device provided in the second aspect of the embodiment of this application.
  • FIG. 4 is a schematic diagram of the module structure of an ignition device provided in the second aspect of the embodiment of this application.
  • the details are as follows:
  • An ignition device which is used to connect with the test lamp 100, includes the above-mentioned ignition circuit and the power supply circuit 70.
  • the power supply circuit 70 is connected to the timing circuit 10 and/or the oscillation circuit 40.
  • the power supply circuit 70 is configured to output a power supply signal VCC to the timing circuit 10 to provide power for the operation of the timing circuit 10.
  • the power supply signal VCC output by the power supply circuit 70 is a +15V DC signal.
  • the power supply circuit 70 supplies power to the timing circuit 10 and can also supply power to the oscillation circuit 40.
  • the ignition circuit and device provided by the present application are applied to the ignition process of the test lamp 100 used in the sunlight simulation test, and the control signal of the preset duration is output through the timing circuit 10, so that the operating duration of the oscillation circuit 40 is Limited by the timing circuit 10, the test lamp 100 can be triggered and ignited within a certain period of time, so as to prevent the long trigger time from shortening the life of the test lamp 100 and other parts, and even damage the test lamp 100 and other parts, thereby improving the safety of the overall circuit sex.

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Abstract

本申请公开一种点火电路及装置，其中，定时电路（10）输出预设时长的控制信号，开关电路（20）接收控制信号时导通并输出供电使能信号，整流电路（30）接收到供电使能信号时将交流电信号转换为直流电信号后输出，振荡电路（40）接收到直流电信号后输出高频脉冲信号，变压电路（50）将高频脉冲信号进行升压处理后输出至测试灯具，从而点亮测试灯具（100）。上述的点火电路及装置，通过定时电路（10）输出预设时长的控制信号，使得振荡电路的工作时长受限于定时电路（10），实现测试灯具（100）在一定时长内完成触发点火，避免触发时间过长导致测试灯具（100）以及其它零件的寿命缩短，甚至损坏测试灯具（100）以及其它零件，提高了整体电路的安全性。

Description

一种点火电路及装置
本申请要求于2020年05月06日在中国专利局提交的、申请号为202020730043.6、发明名称为“一种点火电路及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及阳光模拟技术领域，具体涉及一种点火电路及装置。
背景技术
这里的陈述仅提供与本申请有关的背景信息，而不必然构成现有技术。阳光模拟测试灯具采用点火触发器进行触发，点火触发器对线圈进行升压，达到测试灯具被点亮的条件后，停止触发。然而，目前，传统的点火触发电路无法保证触发时长，当触发时间过长时，容易导致测试灯具以及其它零件的寿命缩短，甚至损坏测试灯具以及其它零件，安全性低。
因此，传统的阳光模拟测试灯具的点火触发技术方案中存在着无法保证触发时长，当触发时间过长时，容易导致测试灯具以及其它零件的寿命缩短，甚至损坏测试灯具以及其它零件，安全性低的问题。
发明概述
技术问题
本申请实施例的目的之一在于：提供一种点火电路及装置，旨在解决决传统的阳光模拟测试灯具的点火触发技术方案中存在的无法保证触发时长，当触发时间过长时，容易导致测试灯具以及其它零件的寿命缩短，甚至损坏测试灯具以及其它零件，安全性低的问题。
问题的解决方案
技术解决方案
为解决上述技术问题，本申请实施例采用的技术方案是：
第一方面，提供了一种点火电路，包括：
定时电路，被配置为输出预设时长的控制信号；
开关电路，与所述定时电路连接，被配置为仅接收所述控制信号时导通，并传输供电使能信号；
整流电路，与所述开关电路连接，被配置为接收到所述供电使能信号时，将交流电信号转换为直流电信号后输出；
振荡电路，与所述整流电路连接，被配置为接收到所述直流电信号后，输出高频脉冲信号；
变压电路，与所述振荡电路及所述测试灯具连接，被配置为将所述高频脉冲信号进行升压处理后输出至所述测试灯具，以点亮所述测试灯具。
在一个实施例中，所述第二开关管和第三开关管分别采用NMOS管实现。
第二方面，提供了一种点火装置，包括：
上述的点火电路；和
电源电路，与所述定时电路连接，被配置为输出供电信号至所述定时电路，以供所述定时电路工作用电。
发明的有益效果
有益效果
本申请实施例提供的一种点火电路及装置，有益效果在于：通过定时电路输出预设时长的控制信号，使得振荡电路的工作时长受限于定时电路，实现测试灯具在一定时长内完成触发点火，避免触发时间过长导致测试灯具以及其它零件的寿命缩短，甚至损坏测试灯具以及其它零件，提高了整体电路的安全性。
对附图的简要说明
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例或示范性技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图。
图1为本申请一实施例第一方面提供的一种点火电路的模块结构示意图；
图2为本申请另一实施例提供的一种点火电路的模块结构示意图；
图3为图2所示的点火电路的示例电路原理图；
图4为本申请实施例第二方面提供的一种点火装置的模块结构示意图。
发明实施例
本发明的实施方式
为了使本申请所要解决的技术问题、技术方案及有益效果更加清楚明白，以下结合附图及实施例，对本申请进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。
需要说明的是，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
请参阅图1，为本申请一实施例提供的一种点火电路的模块结构示意图，为了便于说明，仅示出了与本实施例相关的部分，详述如下：
一种点火电路，用于连接测试灯具100。测试灯具100用于阳光模拟测试。
点火电路包括定时电路10、开关电路20、整流电路30、振荡电路40以及变压电路50。
其中，定时电路10与开关电路20连接，开关电路20与整流电路30连接，整流电路30与振荡电路40连接，振荡电路40与变压电路50连接，变压电路50与测试灯具100连接。
定时电路10被配置为输出预设时长的控制信号。
具体的，该预设时长可根据实际情况进行设定，例如将预设时长设定为1秒，则定时电路10仅在1秒中内输出控制信号，之后停止输出控制信号。
开关电路20被配置为接收控制信号时导通，并输出供电使能信号。
具体的，开关电路20采用电子开关实现，导通后功耗小，节省能耗。开关电路20仅在接收得到控制信号时导通，当定时电路10停止输出控制信号后，开关电路20关断，不再输出供电使能信号。
整流电路30被配置为接收到供电使能信号时，将交流电信号转换为直流电信号后输出。
具体的，整流电路30具有交流转直流的功能，直流电信号作为供电信号输出至 振荡电路40，振荡电路40才开始工作。因此，定时电路10在预设时长内控制开关电路20导通，开关电路20相应在一定时长内输出供电使能信号，使得整流电路30在相应的时长内工作，输出直流电信号给振荡电路40，相应地使得振荡电路40在特定的时长内工作。
振荡电路40被配置为接收到直流电信号后，输出高频脉冲信号。
具体的，振荡电路40通过将直流电信号转换为高频脉冲信号并输出，使得后端的变压电路50对高频脉冲信号进行升压，达到能够点亮模拟测试灯板上的测试灯具100的幅值。
变压电路50被配置为将高频脉冲信号进行升压处理后输出至测试灯具100。
具体地，变压电路50采用变压器实现，其将高频脉冲信号升压后，达到能够点亮模拟测试灯板上的测试灯具100的幅值，从而点亮测试灯具100。
上述的一种点火电路，通过定时电路10输出预设时长的控制信号，使得振荡电路40的工作时长受限于定时电路10，实现测试灯具100在一定时长内完成触发点火，点火时长精确、可控，避免触发时间过长导致测试灯具100以及其它零件的寿命缩短，甚至损坏测试灯具100以及其它零件，提高了整体电路的安全性。
请参阅图2，为本申请另一实施例提供的一种点火电路的模块结构示意图，为了便于说明，仅示出了与本实施例相关的部分，详述如下：
可选的，上述的点火电路还包括滤波电路60。
其中，滤波电路60与振荡电路40及变压电路50连接。
滤波电路60被配置为对高频脉冲信号进行滤波处理后输出至变压电路50。
具体的，滤波电路60可滤除杂波干扰信号。
请参阅图3，为图2所示的点火电路的示例电路原理图，为了便于说明，仅示出了与本实施例相关的部分，详述如下：
在一可选实施例中，定时电路10包括定时器U27、第一可调电阻器RP3、第二可调电阻器RP1、第一电阻R69、第一电容C23、第二电容C21以及第三电容C24。
具体的，该定时器U27采用集成电路实现，本实施例采用555芯片实现。
定时器U27的复位端RS、第一电容C23的第一端、定时器U27的供电端V+及第 一电阻R69的第一端共接的节点连接开关电路20，定时器U27的控制端CV与第二电容C21的第一端共接，定时器U27的触发端TR、定时器U27的放电端DIS、第三电容C24的第一端、第一可调电阻器RP3的第一固定端及第一可调电阻器RP3的滑动端共接。
第一可调电阻器RP3的第二固定端与第二可调电阻器RP1的第一固定端共接，第二可调电阻器RP1的第二固定端与第一电阻R69的第二端共接，第二可调电阻器RP1的滑动端与定时器U27的阈值端THR共接；定时器U27的输出端O连接开关电路20；第一电容C23的第二端、第二电容C21的第二端及第三电容C24的第二端接地。
具体的，定时器U27的供电端V+连接电源电路70，当接收到电源电路70输出的供电信号VCC，定时器U27开始工作。定时器U27各个管脚的工作原理为：控制端THR控制芯片的阈值电压，当控制端TRH空接时，默认两个阈值电压为1/3VCC和2/3VCC；触发端TR的电压降至1/3VCC或者阈值电压时，由触发端TR输出高电平；阈值端THR的电压升至2/3VCC或阈值电压时，由阈值端THR输出低电平；输出端O输出高电平或者低电平；复位端RS接高电平时定时器U27工作，复位端RS接地时定时器U27复位并由输出端O输出低电平；放电端内接定时器U27内部的OC门(Open Collector，集电极开路门)。
定时器U27工作后，在预设时长内输出控制信号至开关电路20，使得开关电路20导通，超过该预设时长后，定时器U27停止输出控制电路，开关电路20则关断，直至下一次再接收到控制信号时才再次导通。
定时器U27的输出端O输出的高电平信号即为上述的控制信号。
在一可选实施例中，上述的开关电路20包括第二电阻R5、第三电阻R6、第一开关管Q3及继电器K1；继电器K1包括绕组和触点组。
其中，第二电阻R5的第一端与第三电阻R6的第一端连接定时电路10，第二电阻R5的第二端连接第一开关管Q3的受控端，第一开关管Q3的输入端连接绕组的第一端，第一开关管Q3的输出端接地；第三电阻R6的第二端连接绕组的第二端；触点组的常开触点连接整流电路30，触点组的第一固定触点连接振荡电路40，触点组的第二固定触点悬空。
具体地，继电器K1的触点组常开，仅当接收到控制信号时闭合。第二电阻R5的第一端连接定时器U27的输出端O，当输出端O输出控制信号时，第一开关管Q3导通，从而使得继电器K1的绕组得电，进而控制触点组的常开触点与第一固定触点接触。
可选的，第一开关管Q3采用NMOS管实现，NMOS管的栅极、漏极及源极分别作为第一开关管Q3的受控端、输入端及输出端。
在一可选实施例中，上述的整流电路30包括第一稳压二极管TZ1、第四电容C7、整流桥BD1以及插接器J1。
其中，插接器J1的输电端、第四电容C7的第一端、第一稳压二极管TZ1的阴极以及整流桥BD1的第一端共接，插接器J1的接地端、第四电容C7的第二端、第一稳压二极管TZ1的阳极及整流桥BD1的第二端共接，整流桥BD1的第三端连接振荡电路40，整流桥BD1的第四端接地。
具体的，接插器外接整流器，该整流器用于对市电进行整流后输出交流电信号至接插器，由接插器将交流电信号传输给整流桥BD1。
第四电容C7为滤波电容，用于对交流电信号进行滤波处理。第一稳压二极管TZ1用于稳压，保护整流桥BD1及其它电子元件不被瞬间大电流破坏。如图3，整流桥BD1由四个二极管组成。
在一可选实施例中，上述的振荡电路40包括半桥驱动振荡芯片U1、第四电阻R2、第五电阻R1、第六电阻R3、第七电阻R4、第五电容C6、第六电容C2、第七电容C1、第八电容C3、第二稳压二极管D2、二极管D1、第二开关管Q1以及第三开关管Q2。
第五电容C6的第一端与第二稳压二极管D2的阴极共接的节点连接整流电路30，第二稳压二极管D2的阳极与第四电阻R2的第一端连接，第四电阻R2的第二端、第六电容C2的第一端及半桥驱动振荡芯片U1的供电端VS共接，半桥驱动振荡芯片U1的电阻调节端RF与第五电阻R1的第一端连接，第五电阻R1的第二端、第七电容C1的第一端及半桥驱动振荡芯片U1的电容调节端CF共接。
半桥驱动振荡芯片U1的输出端OUT与第六电阻R3的第一端连接，半桥驱动振荡芯片U1的浮动电源端BOOT与第七电阻R4的第一端连接，第八电容C3的第一 端、半桥驱动振荡芯片U1的低侧驱动输出端LVG及二极管D1的阴极共接；二极管D1的阳极连接半桥驱动振荡芯片U1的供电端VS；第八电容C3的第二端、半桥驱动振荡芯片U1的高侧驱动输出端HVG、第二开关管Q1的输出端及第三开关管Q2的输入端共接；第六电阻R3的第二端连接第二开关管Q1的受控端，第七电阻R4的第二端连接第三开关管Q2的受控端，第二开关管Q1的输入端连接变压电路50。
半桥驱动振荡芯片U1的接地端GND、第五电容C6的第二端、第六电容C2的第二端、第七电容C1的第二端及第三开关管Q2的输出端接地。
具体的，半桥驱动振荡芯片U1的型号为L6569A，第二开关管Q1和第三开关管Q2组成桥式逆变电路，振荡电路40工作时，半桥驱动振荡芯片U1的高侧驱动输出端HVG和低侧驱动输出端LVG交替输出高电平信号，从而控制第二开关管Q1和第三开关管Q2交替导通，生成高频脉冲信号。
第二开关管Q1和第三开关管Q2均采用NMOS管实现，NMOS管的栅极、漏极及源极分别作为第二开关管Q1/第三开关管Q2的受控端、输入端及输出端。
在一可选实施例中，上述的变压电路50包括升压变压器。
升压变压器的初级线圈连接振荡电路40，升压变压器的次级线圈连接测试灯具100。
具体的，升压变压器可将高频脉冲信号升压至10000V电压，从而点亮测试灯具100。
在一可选实施例中，上述的滤波电路60包括第九电容C5和第十电容C8。
第九电容C5的第一端连接振荡电路40，第九电容C5的第二端与第十电容C8的第一端共接的节点连接振荡电路40，第十电容C8的第二端接地。
具体的，第九电容C5的第一端连接第二开关管Q1的输入端，第九电容C5的第二端、第十电容C8的第一端、第二开关管Q1的输出端及第三开关管Q2的输入端共接，第十电容C8的第二端接地。滤波电路60滤除干扰杂波，使得电路整体运行更加稳定。
请参阅图4，为本申请实施例的第二方面提供的一种点火装置的模块结构示意图，为了便于说明，仅示出了与本实施例相关的部分，详述如下：
一种点火装置，用于与测试灯具100连接，包括上述的点火电路和电源电路70。
电源电路70与定时电路10和/或振荡电路40连接。电源电路70被配置为输出供电信号VCC至定时电路10，以供定时电路10工作用电。
具体的，电源电路70输出的供电信号VCC为+15V直流信号。电源电路70为定时电路10进行供电，还可对振荡电路40进行供电。
综上所述，本申请提供的一种点火电路及装置，应用于阳光模拟测试中使用的测试灯具100的点火过程，通过定时电路10输出预设时长的控制信号，使得振荡电路40的工作时长受限于定时电路10，实现测试灯具100在一定时长内完成触发点火，避免触发时间过长导致测试灯具100以及其它零件的寿命缩短，甚至损坏测试灯具100以及其它零件，提高了整体电路的安全性。
应理解，上述实施例中各步骤的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
所属领域的技术人员可以清楚地了解到，为了描述的方便和简洁，仅以上述各功能单元、模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能单元、模块完成，即将所述装置的内部结构划分成不同的功能单元或模块，以完成以上描述的全部或者部分功能。实施例中的各功能单元、模块可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中，上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。另外，各功能单元、模块的具体名称也只是为了便于相互区分，并不用于限制本申请的保护范围。上述系统中单元、模块的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
以上所述实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各 实施例技术方案的精神和范围，均应包含在本申请的保护范围之内。

Claims (12)

  1. 一种点火电路，用于连接测试灯具，其特征在于，包括：
    定时电路，被配置为输出预设时长的控制信号；
    开关电路，与所述定时电路连接，被配置为仅接收所述控制信号时导通，并传输供电使能信号；
    整流电路，与所述开关电路连接，被配置为接收到所述供电使能信号时，将交流电信号转换为直流电信号后输出；
    振荡电路，与所述整流电路连接，被配置为接收到所述直流电信号后，输出高频脉冲信号；
    变压电路，与所述振荡电路及所述测试灯具连接，被配置为将所述高频脉冲信号进行升压处理后输出至所述测试灯具，以点亮所述测试灯具。
  2. 如权利要求1所述的点火电路，其特征在于，定时电路包括：
    定时器、第一可调电阻器、第二可调电阻器、第一电阻、第一电容、第二电容以及第三电容；
    所述定时器的复位端、所述第一电容的第一端、所述定时器的供电端及所述第一电阻的第一端共接的节点连接所述开关电路，所述定时器的控制端与所述第二电容的第一端共接，所述定时器的触发端、所述定时器的放电端、所述第三电容的第一端、所述第一可调电阻器的第一固定端及所述第一可调电阻器的滑动端共接，所述第一可调电阻器的第二固定端与所述第二可调电阻器的第一固定端共接，所述第二可调电阻器的第二固定端与所述第一电阻的第二端共接，所述第二可调电阻器的滑动端与所述定时器的阈值端共接；所述定时器的输出端连接所述开关电路；所述第一电容的第二端、所述第二电容的第二端及所述第三电容的第二端接地。
  3. 如权利要求1所述的点火电路，其特征在于，开关电路包括：
    第二电阻、第三电阻、第一开关管及继电器；所述继电器包括绕 组和触点组；
    所述第二电阻的第一端与所述第三电阻的第一端连接所述定时电路，所述第二电阻的第二端连接所述第一开关管的受控端，所述第一开关管的输入端连接所述绕组的第一端，所述第一开关管的输出端接地；所述第三电阻的第二端连接所述绕组的第二端；所述触点组的常开触点连接所述整流电路，所述触点组的第一固定触点连接所述振荡电路，所述触点组的第二固定触点悬空。
  4. 如权利要求1所述的点火电路，其特征在于，整流电路包括：
    第一稳压二极管、第四电容、整流桥以及插接器；
    所述插接器的输电端、所述第四电容的第一端、所述第一稳压二极管的阴极以及所述整流桥的第一端共接，所述插接器的接地端、所述第四电容的第二端、所述第一稳压二极管的阳极及所述整流桥的第二端共接，所述整流桥的第三端连接所述振荡电路，所述整流桥的第四端接地。
  5. 如权利要求1所述的点火电路，其特征在于，振荡电路包括：
    半桥驱动振荡芯片、第四电阻、第五电阻、第六电阻、第七电阻、第五电容、第六电容、第七电容、第八电容、第二稳压二极管、二极管、第二开关管以及第三开关管；
    所述第五电容的第一端与所述第二稳压二极管的阴极共接的节点连接所述整流电路，所述第二稳压二极管的阳极与所述第四电阻的第一端连接，所述第四电阻的第二端、所述第六电容的第一端及所述半桥驱动振荡芯片的供电端共接，所述半桥驱动振荡芯片的电阻调节端与所述第五电阻的第一端连接，所述第五电阻的第二端、所述第七电容的第一端及所述半桥驱动振荡芯片的电容调节端共接；
    所述半桥驱动振荡芯片的输出端与所述第六电阻的第一端连接，所述半桥驱动振荡芯片的浮动电源端与所述第七电阻的第一端连接，所述第八电容的第一端、所述半桥驱动振荡芯片的低侧驱动 输出端及所述二极管的阴极共接；所述二极管的阳极连接所述半桥驱动振荡芯片的供电端；所述第八电容的第二端、所述半桥驱动振荡芯片的高侧驱动输出端、所述第二开关管的输出端及所述第三开关管的输入端共接；所述第六电阻的第二端连接所述第二开关管的受控端，所述第七电阻的第二端连接所述第三开关管的受控端，所述第二开关管的输入端连接所述变压电路；
    所述半桥驱动振荡芯片的接地端、所述第五电容的第二端、所述第六电容的第二端、所述第七电容的第二端及所述第三开关管的输出端接地。
  6. 如权利要求1所述的点火电路，其特征在于，变压电路包括：升压变压器；
    所述升压变压器的初级线圈连接所述振荡电路，所述升压变压器的次级线圈连接所述测试灯具。
  7. 如权利要求1所述的点火电路，其特征在于，还包括：
    滤波电路，与所述振荡电路及所述变压电路连接，被配置为对所述高频脉冲信号进行滤波处理后输出至所述变压电路。
  8. 如权利要求7所述的点火电路，其特征在于，所述滤波电路包括：
    第九电容和第十电容；
    所述第九电容的第一端连接所述振荡电路，所述第九电容的第二端与所述第十电容的第一端共接的节点连接所述振荡电路，所述第十电容的第二端接地。
  9. 如权利要求3所述的点火电路，其特征在于，所述第一开关管采用NMOS管实现，所述NMOS管的栅极、漏极及源极分别作为所述第一开关管的受控端、输入端及输出端。
  10. 如权利要求5所述的点火电路，其特征在于，所述第二开关管和第三开关管分别采用NMOS管实现。
  11. 一种点火装置，用于与测试灯具连接，其特征在于，包括：
    如权利要求1至10任一项所述的点火电路；和
    电源电路，与所述定时电路连接，被配置为输出供电信号至所述定时电路，以供所述定时电路工作用电。
  12. 如权利要求11所述的点火装置，其特征在于，所述电源电路输出的所述供电信号为+15V直流信号。
PCT/CN2020/090076 2020-05-06 2020-05-13 一种点火电路及装置 WO2021223252A1 (zh)

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CN115589160B (zh) * 2022-12-12 2023-03-10 季华实验室 控制电源产生电路及方法

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