WO2014005355A1 - Electronic load machine - Google Patents

Electronic load machine Download PDF

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Publication number
WO2014005355A1
WO2014005355A1 PCT/CN2012/078685 CN2012078685W WO2014005355A1 WO 2014005355 A1 WO2014005355 A1 WO 2014005355A1 CN 2012078685 W CN2012078685 W CN 2012078685W WO 2014005355 A1 WO2014005355 A1 WO 2014005355A1
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WO
WIPO (PCT)
Prior art keywords
signal
control
electronic load
load machine
coupled
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Application number
PCT/CN2012/078685
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French (fr)
Chinese (zh)
Inventor
尚艳燕
Original Assignee
Shang Yanyan
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Publication date
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Publication of WO2014005355A1 publication Critical patent/WO2014005355A1/en

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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/40—Testing power supplies

Definitions

  • the present invention relates to the field of power supply manufacturing, and more particularly to an electronic load machine. ⁇ Background technique ⁇
  • the electronic loader is a multi-function electronic load-bearing instrument designed for various S.P.S. (converted power supply), which is specially supplied to the production department, inspection department or development department.
  • the electronic loader can simulate the load in the real environment (using electrical appliances) to detect the quality of the power supply. Its features are quite numerous, including the ability to adjust the load size, as well as short circuits, overcurrents, dynamics, and more.
  • the principle of the electronic load is to control the internal power or the conduction of the transistor (the amount of duty cycle).
  • the device that consumes power by the power dissipation of the power tube can accurately detect the load voltage and accurately adjust the load current.
  • Analog load short circuit, analog load is inductive resistive and capacitive, capacitive load current rise time.
  • the technical problem to be solved by the present invention is to provide an electronic loader capable of customizing control functions.
  • the object of the present invention is achieved by the following technical solutions:
  • An electronic load machine is provided with a control interface for responding to an external control signal.
  • the electronic loader includes a casing, and the casing is provided with a control terminal; the control interface includes a control photoelectric coupling module, and the optical signal input end of the control photoelectric coupling module is connected to the control terminal The electrical signal output of the control optocoupler module is coupled to a control circuit internal to the electronic loader.
  • the electronic loader further includes an external control circuit
  • the external control circuit includes a control transistor, and a first resistor and a button are connected in series between the gate and the ground of the control transistor;
  • the control transistor is connected to the ground; its source is coupled to one of the input pins of the control interface, and the other input pin of the control interface is coupled to a control reference voltage through the second resistor, and the reference voltage is also passed
  • a third resistor is coupled between the first resistor and the button.
  • a filter capacitor is disposed in parallel at both ends of the button.
  • the electronic loader further includes a signal interface for outputting a control signal.
  • the electronic loader includes a casing, and the casing is provided with a signal terminal; the signal interface includes a signal photoelectric coupling module, and an electrical signal output end of the signal photoelectric coupling module is connected to the signal terminal The optical signal input of the signal optocoupler module is coupled to a control circuit internal to the electronic loader.
  • the electronic loader further includes an external signal circuit
  • the external signal circuit includes a relay and a signal transistor, a gate of the signal transistor is coupled to one of the input pins of the signal interface, and the signal interface Another input pin is coupled to the drain and ground of the signal transistor, respectively; the source of the drain of the signal transistor is coupled through a coil of the relay to a signal reference voltage, the signal reference voltage and the gate of the signal transistor A fourth resistor is also connected between them.
  • the invention is provided with a control interface for responding to an external control signal on the electronic load machine, and can control the operation of the electronic load machine through an external control signal, on the one hand, the control function is expanded, and on the other hand, the remote control can be performed, and the operation is convenient. .
  • FIG. 1 is a schematic diagram of the principle of an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of a specific control interface according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram showing the principle of an electronic loader with a signal interface according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of a specific signal interface according to an embodiment of the present invention.
  • control terminal 100, control terminal; 200, housing; 300, external control circuit; 400, signal terminal; 500, external signal circuit.
  • an electronic loader includes a housing 200 having a control terminal 100 disposed outside the housing, and a control interface for responding to an external control signal is provided inside the electronic loader.
  • the invention is provided with a control interface for responding to an external control signal on the electronic load machine, and can control the operation of the electronic load machine through an external control signal, on the one hand, the control function is expanded, and on the other hand, the remote control can be performed, and the operation is convenient. .
  • control interface includes a control photocoupler module U1, and the optical signal input end of the control photocoupler module is connected to the control terminal; and the electrical signal output end is coupled to the control circuit inside the electronic loader.
  • the embodiment further discloses an external control circuit of the electronic load machine, the external control circuit includes a control transistor Q1, and a first resistor R1 and a button S1 are connected in series between the gate and the ground of the control transistor;
  • the triode is connected to the ground; its source is coupled to one of the input pins of the control interface through a control terminal, and the other input pin of the control interface is coupled to a control reference voltage through the second resistor R2 and the control terminal (as shown in FIG.
  • the +5V voltage shown in 1, 2), the reference voltage is also coupled between the first resistor R1 and the button S1 through the third resistor R3, and the filter capacitor C1 is arranged in parallel at both ends of the button.
  • the electronic loader further includes a signal interface for outputting a control signal and a signal terminal 400.
  • the signal interface includes a signal photoelectric coupling module U2, and the electrical signal output end of the signal photoelectric coupling module is connected to the signal terminal 400.
  • the optical signal input is coupled to a control circuit internal to the electronic loader.
  • the electronic loader further includes an external signal circuit 500.
  • the external signal circuit 500 includes a relay KA and a signal transistor Q2.
  • the gate of the signal transistor is coupled to one of the input terminals of the signal interface through the signal terminal 400, and the signal interface is additionally
  • An input pin is coupled to the drain and ground of signal transistor Q2 via signal terminal 400; the source of the drain of the signal transistor is coupled to a signal reference voltage via the line of relay KA (see +12V of Figures 3 and 4). Voltage), the signal reference A fourth resistor is also connected between the gates of the voltage and signal transistors.
  • the output of the relay KA is connected with a protection lamp.
  • the relay When the relay is disconnected, there is protection in the power circuit to prevent the power input current from being too large or short-circuited. If the brightness of the protection lamp is normal, the power output is normal, and the signal interface can output a control signal to control the relay to pull in. ; Disconnect the protection lamp and then supply power for testing.
  • the signal interface can have multiple outputs. As shown in Figure 4, Outl ⁇ Out4, Outl ⁇ Out4 share a centralized end Com, and each output corresponds to an external signal circuit 500.
  • control terminal and the signal terminal in this embodiment can be implemented on the same terminal block or in two terminal blocks, and all the terminals are disposed in the outer casing 200.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Electronic Switches (AREA)
  • Programmable Controllers (AREA)

Abstract

An electronic load machine is provided with a control interface for responding to an outer control signal. As the electronic load machine is provided with the control interface for responding to the outer control signal, working of the electronic load machine can be controlled by the outer control signal. In one aspect, expansion of a control function is implemented; and in another aspect, distance control can be implemented, thereby facilitating the operation.

Description

一种电子负载机  Electronic load machine
【技术领域】 [Technical Field]
本发明涉及电源制造领域， 更具体的说， 涉及一种电子负载机。 【背景技术】  The present invention relates to the field of power supply manufacturing, and more particularly to an electronic load machine. 【Background technique】
电子负载机是针对各式 S.P.S. (转换式电源供应器）设计的多功能电子负 载仪器， 专门提供给生产部门， 检验部门或是开发部门使用。 电子负载机可以 模拟真实环境中的负载 （用电器） 来检测电源的好坏。 其功能相当多， 包括可 以调节负载大小， 以及短路， 过流， 动态等等。 电子负载的原理是控制内功率 或晶体管的导通量 (量占空比大小），靠功率管的耗散功率消耗电能的设备,它能够 准确检测出负载电压,精确调整负载电流， 同时可以实现模拟负载短路，模拟负载 是感性阻性和容性,容性负载电流上升时间。  The electronic loader is a multi-function electronic load-bearing instrument designed for various S.P.S. (converted power supply), which is specially supplied to the production department, inspection department or development department. The electronic loader can simulate the load in the real environment (using electrical appliances) to detect the quality of the power supply. Its features are quite numerous, including the ability to adjust the load size, as well as short circuits, overcurrents, dynamics, and more. The principle of the electronic load is to control the internal power or the conduction of the transistor (the amount of duty cycle). The device that consumes power by the power dissipation of the power tube can accurately detect the load voltage and accurately adjust the load current. Analog load short circuit, analog load is inductive resistive and capacitive, capacitive load current rise time.
现有的电子负载机工作时， 只能通过其自带的输入按键进行控制操作， 无 法实现特殊控制功能， 延展性较差。  When the existing electronic loader is working, it can only be controlled by its own input button, and special control functions cannot be realized, and the ductility is poor.
【发明内容】 [Summary of the Invention]
本发明所要解决的技术问题是提供一种可自定义控制功能的电子负载机。 本发明的目的是通过以下技术方案来实现的：  The technical problem to be solved by the present invention is to provide an electronic loader capable of customizing control functions. The object of the present invention is achieved by the following technical solutions:
一种电子负载机， 所述电子负载机上设置有用于响应外部控制信号的控制 接口。  An electronic load machine is provided with a control interface for responding to an external control signal.
优选的， 所述电子负载机包括壳体， 所述壳体上设有控制端子； 所述控制 接口包括控制光电耦合模块， 所述控制光电耦合模块的光信号输入端连接到所 述控制端子上； 所述控制光电耦合模块的电信号输出端耦合到所述电子负载机 内部的控制电路。  Preferably, the electronic loader includes a casing, and the casing is provided with a control terminal; the control interface includes a control photoelectric coupling module, and the optical signal input end of the control photoelectric coupling module is connected to the control terminal The electrical signal output of the control optocoupler module is coupled to a control circuit internal to the electronic loader.
优选的， 所述电子负载机还包括外接控制电路， 所述外接控制电路包括控 制三极管， 所述控制三极管的门极与接地端之间串联有第一电阻和按键； 所述 控制三极管跟接地端连接； 其源极耦合到所述控制接口的其中一个输入引脚， 所述控制接口的另外一个输入引脚通过第二电阻耦合到一控制基准电压， 所述 基准电压还通过第三电阻耦合到所述第一电阻和按键之间。 Preferably, the electronic loader further includes an external control circuit, the external control circuit includes a control transistor, and a first resistor and a button are connected in series between the gate and the ground of the control transistor; The control transistor is connected to the ground; its source is coupled to one of the input pins of the control interface, and the other input pin of the control interface is coupled to a control reference voltage through the second resistor, and the reference voltage is also passed A third resistor is coupled between the first resistor and the button.
优选的， 所述按键两端并联设有滤波电容。  Preferably, a filter capacitor is disposed in parallel at both ends of the button.
优选的， 所述电子负载机还包括用于输出控制信号的信号接口。  Preferably, the electronic loader further includes a signal interface for outputting a control signal.
优选的， 所述电子负载机包括壳体， 所述壳体上设有信号端子； 所述信号 接口包括信号光电耦合模块， 所述信号光电耦合模块的电信号输出端连接到所 述信号端子上； 所述信号光电耦合模块的光信号输入端耦合到所述电子负载机 内部的控制电路。  Preferably, the electronic loader includes a casing, and the casing is provided with a signal terminal; the signal interface includes a signal photoelectric coupling module, and an electrical signal output end of the signal photoelectric coupling module is connected to the signal terminal The optical signal input of the signal optocoupler module is coupled to a control circuit internal to the electronic loader.
优选的， 所述电子负载机还包括外接信号电路， 所述外接信号电路包括继 电器和信号三极管， 所述信号三极管的门极耦合到所述信号接口的其中一个输 入引脚， 所述信号接口的另外一个输入引脚分别耦合到信号三极管的漏极和接 地端； 信号三极管的漏极的源极通过所述继电器的线圏耦合到一信号基准电压， 所述信号基准电压和信号三极管的门极之间还连接有第四电阻。  Preferably, the electronic loader further includes an external signal circuit, the external signal circuit includes a relay and a signal transistor, a gate of the signal transistor is coupled to one of the input pins of the signal interface, and the signal interface Another input pin is coupled to the drain and ground of the signal transistor, respectively; the source of the drain of the signal transistor is coupled through a coil of the relay to a signal reference voltage, the signal reference voltage and the gate of the signal transistor A fourth resistor is also connected between them.
本发明由于在电子负载机上设置有用于响应外部控制信号的控制接口， 可 以通过外部控制信号来控制电子负载机的工作， 一方面实现了控制功能的拓展, 另一方面可以进行远程控制， 方便操作。  The invention is provided with a control interface for responding to an external control signal on the electronic load machine, and can control the operation of the electronic load machine through an external control signal, on the one hand, the control function is expanded, and on the other hand, the remote control can be performed, and the operation is convenient. .
【附图说明】 [Description of the Drawings]
图 1是本发明实施方式的原理示意图；  1 is a schematic diagram of the principle of an embodiment of the present invention;
图 2是本发明实施方式具体的控制接口示意图；  2 is a schematic diagram of a specific control interface according to an embodiment of the present invention;
图 3是本发明实施方式带信号接口的电子负载机原理示意图；  3 is a schematic diagram showing the principle of an electronic loader with a signal interface according to an embodiment of the present invention;
图 4是本发明实施方式具体的信号接口示意图；  4 is a schematic diagram of a specific signal interface according to an embodiment of the present invention;
100、 控制端子； 200、 外壳； 300、 外接控制电路； 400、 信号端子； 500、 外接信号电路。 【具体实施方式】 100, control terminal; 200, housing; 300, external control circuit; 400, signal terminal; 500, external signal circuit. 【detailed description】
如图 1 ~ 4所示，一种电子负载机，包括外壳 200,外壳外设有控制端子 100, 电子负载机内部设有用于响应外部控制信号的控制接口。  As shown in FIGS. 1 to 4, an electronic loader includes a housing 200 having a control terminal 100 disposed outside the housing, and a control interface for responding to an external control signal is provided inside the electronic loader.
本发明由于在电子负载机上设置有用于响应外部控制信号的控制接口， 可 以通过外部控制信号来控制电子负载机的工作， 一方面实现了控制功能的拓展， 另一方面可以进行远程控制， 方便操作。 下面结合附图和较佳的实施例对本发 明作进一步说明。  The invention is provided with a control interface for responding to an external control signal on the electronic load machine, and can control the operation of the electronic load machine through an external control signal, on the one hand, the control function is expanded, and on the other hand, the remote control can be performed, and the operation is convenient. . The invention will now be further described with reference to the drawings and preferred embodiments.
如图 2所示， 控制接口包括控制光电耦合模块 U1 , 控制光电耦合模块的光 信号输入端连接到控制端子上； 其电信号输出端耦合到电子负载机内部的控制 电路。  As shown in FIG. 2, the control interface includes a control photocoupler module U1, and the optical signal input end of the control photocoupler module is connected to the control terminal; and the electrical signal output end is coupled to the control circuit inside the electronic loader.
本实施方式还公开了一种电子负载机的外接控制电路， 该外接控制电路包 括控制三极管 Q1 , 所述控制三极管的门极与接地端之间串联有第一电阻 R1和 按键 S1; 所述控制三极管跟接地端连接； 其源极通过控制端子耦合到所述控制 接口的其中一个输入引脚，控制接口的另外一个输入引脚通过第二电阻 R2和控 制端子耦合到一控制基准电压 （如图 1、 2所示的 +5V电压）， 基准电压还通过 第三电阻 R3耦合到第一电阻 R1和按键 S1之间， 按键两端并联设有滤波电容 Cl。  The embodiment further discloses an external control circuit of the electronic load machine, the external control circuit includes a control transistor Q1, and a first resistor R1 and a button S1 are connected in series between the gate and the ground of the control transistor; The triode is connected to the ground; its source is coupled to one of the input pins of the control interface through a control terminal, and the other input pin of the control interface is coupled to a control reference voltage through the second resistor R2 and the control terminal (as shown in FIG. The +5V voltage shown in 1, 2), the reference voltage is also coupled between the first resistor R1 and the button S1 through the third resistor R3, and the filter capacitor C1 is arranged in parallel at both ends of the button.
如图 3、 4所示， 电子负载机还包括用于输出控制信号的信号接口和信号端 子 400, 信号接口包括信号光电耦合模块 U2, 信号光电耦合模块的电信号输出 端连接到信号端子 400上； 其光信号输入端耦合到所述电子负载机内部的控制 电路。  As shown in FIGS. 3 and 4, the electronic loader further includes a signal interface for outputting a control signal and a signal terminal 400. The signal interface includes a signal photoelectric coupling module U2, and the electrical signal output end of the signal photoelectric coupling module is connected to the signal terminal 400. The optical signal input is coupled to a control circuit internal to the electronic loader.
参见图 4, 电子负载机还包括外接信号电路 500, 外接信号电路 500包括继 电器 KA和信号三极管 Q2, 信号三极管的门极通过信号端子 400耦合到信号接 口的其中一个输入引脚， 信号接口的另外一个输入引脚分别通过信号端子 400 耦合到信号三极管 Q2 的漏极和接地端； 信号三极管的漏极的源极通过继电器 KA的线圏耦合到一信号基准电压 （参见图 3、 4的 +12V电压）， 所述信号基准 电压和信号三极管的门极之间还连接有第四电阻。 Referring to FIG. 4, the electronic loader further includes an external signal circuit 500. The external signal circuit 500 includes a relay KA and a signal transistor Q2. The gate of the signal transistor is coupled to one of the input terminals of the signal interface through the signal terminal 400, and the signal interface is additionally An input pin is coupled to the drain and ground of signal transistor Q2 via signal terminal 400; the source of the drain of the signal transistor is coupled to a signal reference voltage via the line of relay KA (see +12V of Figures 3 and 4). Voltage), the signal reference A fourth resistor is also connected between the gates of the voltage and signal transistors.
继电器 KA 的输出端连接有保护灯， 当继电器断开时电源回路中有保护， 防止电源输入电流过大或短路， 如果保护灯亮度正常， 电源输出正常， 信号接 口可输出控制信号控制继电器吸合； 断开保护灯， 然后正常供电进行测试。  The output of the relay KA is connected with a protection lamp. When the relay is disconnected, there is protection in the power circuit to prevent the power input current from being too large or short-circuited. If the brightness of the protection lamp is normal, the power output is normal, and the signal interface can output a control signal to control the relay to pull in. ; Disconnect the protection lamp and then supply power for testing.
信号接口可以有多路输出， 如图 4所示的 Outl ~ Out4, Outl ~ Out4共用一 个集中端 Com, 每一路输出对应一个外接信号电路 500。  The signal interface can have multiple outputs. As shown in Figure 4, Outl ~ Out4, Outl ~ Out4 share a centralized end Com, and each output corresponds to an external signal circuit 500.
本实施方式中的控制端子和信号端子可以做到同一个端子排上， 也可以分 两个端子排来实现， 所有端子都设置在外壳 200。  The control terminal and the signal terminal in this embodiment can be implemented on the same terminal block or in two terminal blocks, and all the terminals are disposed in the outer casing 200.
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明， 不 能认定本发明的具体实施只局限于这些说明。 对于本发明所属技术领域的普通 技术人员来说， 在不脱离本发明构思的前提下， 还可以做出若干筒单推演或替 换， 都应当视为属于本发明的保护范围。  The above is a further detailed description of the present invention in connection with the specific preferred embodiments. It is not intended that the specific embodiments of the invention are limited to the description. It will be apparent to those skilled in the art that the present invention may be practiced without departing from the spirit and scope of the invention.

Claims

权利要求 Rights request
1、 一种电子负载机， 其特征在于， 所述电子负载机上设置有用于响应外部 控制信号的控制接口。 1. An electronic load machine, characterized in that the electronic load machine is provided with a control interface for responding to external control signals.
2、 如权利要求 1所述的一种电子负载机， 其特征在于， 所述电子负载机包 括壳体， 所述壳体上设有控制端子； 所述控制接口包括控制光电耦合模块， 所 述控制光电耦合模块的光信号输入端连接到所述控制端子上； 所述控制光电耦 合模块的电信号输出端耦合到所述电子负载机内部的控制电路。 2. An electronic load machine as claimed in claim 1, characterized in that, the electronic load machine includes a casing, and a control terminal is provided on the casing; the control interface includes a control photoelectric coupling module, The optical signal input end of the control optoelectronic coupling module is connected to the control terminal; the electrical signal output end of the control optoelectronic coupling module is coupled to the control circuit inside the electronic load machine.
3、 如权利要求 2所述的一种电子负载机， 其特征在于， 所述电子负载机还 包括外接控制电路， 所述外接控制电路包括控制三极管， 所述控制三极管的门 极与接地端之间串联有第一电阻和按键； 所述控制三极管跟接地端连接； 其源 极耦合到所述控制接口的其中一个输入引脚， 所述控制接口的另外一个输入引 脚通过第二电阻耦合到一控制基准电压， 所述基准电压还通过第三电阻耦合到 所述第一电阻和按键之间。 3. An electronic load machine as claimed in claim 2, characterized in that, the electronic load machine further includes an external control circuit, the external control circuit includes a control transistor, and the gate electrode and the ground terminal of the control transistor are A first resistor and a button are connected in series; the control transistor is connected to the ground; its source is coupled to one of the input pins of the control interface, and the other input pin of the control interface is coupled to A control reference voltage, the reference voltage is also coupled between the first resistor and the key through a third resistor.
4、 如权利要求 3所述的一种电子负载机， 其特征在于， 所述按键两端并联 设有滤波电容。 4. An electronic load machine as claimed in claim 3, characterized in that filter capacitors are provided in parallel at both ends of the button.
5、 如权利要求 1所述的一种电子负载机， 其特征在于， 所述电子负载机还 包括用于输出控制信号的信号接口。 5. The electronic load machine according to claim 1, characterized in that the electronic load machine further includes a signal interface for outputting control signals.
6、 如权利要求 5所述的一种电子负载机， 其特征在于， 所述电子负载机包 括壳体， 所述壳体上设有信号端子； 所述信号接口包括信号光电耦合模块， 所 述信号光电耦合模块的电信号输出端连接到所述信号端子上； 所述信号光电耦 合模块的光信号输入端耦合到所述电子负载机内部的控制电路。 6. An electronic load machine as claimed in claim 5, characterized in that, the electronic load machine includes a casing, and a signal terminal is provided on the casing; the signal interface includes a signal photoelectric coupling module, The electrical signal output end of the signal optoelectronic coupling module is connected to the signal terminal; the optical signal input end of the signal optoelectronic coupling module is coupled to the control circuit inside the electronic load machine.
7、 如权利要求 6所述的一种电子负载机， 其特征在于， 所述电子负载机还 包括外接信号电路， 所述外接信号电路包括继电器和信号三极管， 所述信号三 极管的门极耦合到所述信号接口的其中一个输入引脚， 所述信号接口的另外一 个输入引脚分别耦合到信号三极管的漏极和接地端； 信号三极管的漏极的源极 通过所述继电器的线圏耦合到一信号基准电压， 所述信号基准电压和信号三极 管的门极之间还连接有第四电阻。 7. An electronic load machine according to claim 6, characterized in that, the electronic load machine further includes an external signal circuit, the external signal circuit includes a relay and a signal transistor, and the gate of the signal transistor is coupled to One of the input pins of the signal interface and the other input pin of the signal interface are respectively coupled to the drain and ground terminal of the signal transistor; the source of the drain of the signal transistor A signal reference voltage is coupled to a signal reference voltage through the coil of the relay, and a fourth resistor is connected between the signal reference voltage and the gate of the signal transistor.
PCT/CN2012/078685 2012-07-04 2012-07-16 Electronic load machine WO2014005355A1 (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6564173B1 (en) * 2000-10-17 2003-05-13 Daimlerchrysler Corporation Remote multiplexed diagnostic circuitry and a method of detecting faults in sequentially driven loads
CN2919266Y (en) * 2006-06-30 2007-07-04 青岛艾诺电子仪器有限公司 Direct current electronic loading device
CN201185006Y (en) * 2008-04-10 2009-01-21 福建升腾资讯有限公司 Automatic test board for computer mainboard
CN102117237A (en) * 2009-12-30 2011-07-06 鸿富锦精密工业（深圳）有限公司 Test device for motherboard startup and shutdown
CN102306004A (en) * 2011-08-25 2012-01-04 艾德克斯电子（南京）有限公司 Communication fitting part for electronic loads
CN202614916U (en) * 2012-07-04 2012-12-19 尚艳燕 Electronic load machine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6667461B1 (en) * 2002-06-19 2003-12-23 Tyco Electronics Corporation Multiple load protection and control device
CN2687674Y (en) * 2004-03-11 2005-03-23 华为技术有限公司 High power adjustable electronic load
CN201011522Y (en) * 2006-10-20 2008-01-23 章发群 Electronic load for energy conversion
CN201355431Y (en) * 2008-11-20 2009-12-02 山东山大新元易通信息科技有限公司 Microcomputer system optoelectronic isolation power interface module
CN201440168U (en) * 2009-07-01 2010-04-21 中国长城计算机深圳股份有限公司 E-load machine
CN101587139B (en) * 2009-07-09 2011-09-28 山东艾诺仪器有限公司 Quick tracking arbitrary waveform generator in alternating current electronic load

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6564173B1 (en) * 2000-10-17 2003-05-13 Daimlerchrysler Corporation Remote multiplexed diagnostic circuitry and a method of detecting faults in sequentially driven loads
CN2919266Y (en) * 2006-06-30 2007-07-04 青岛艾诺电子仪器有限公司 Direct current electronic loading device
CN201185006Y (en) * 2008-04-10 2009-01-21 福建升腾资讯有限公司 Automatic test board for computer mainboard
CN102117237A (en) * 2009-12-30 2011-07-06 鸿富锦精密工业（深圳）有限公司 Test device for motherboard startup and shutdown
CN102306004A (en) * 2011-08-25 2012-01-04 艾德克斯电子（南京）有限公司 Communication fitting part for electronic loads
CN202614916U (en) * 2012-07-04 2012-12-19 尚艳燕 Electronic load machine

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