CN216310043U

CN216310043U - Clamp for verifying compatibility of power supply

Info

Publication number: CN216310043U
Application number: CN202120901310.6U
Authority: CN
Inventors: 陈晨
Original assignee: Taicang T&W Electronics Co Ltd
Current assignee: Taicang T&W Electronics Co Ltd
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2022-04-15
Anticipated expiration: 2031-04-28

Abstract

The utility model discloses a clamp for verifying power supply compatibility, which comprises a PCB (printed circuit board), wherein the PCB is provided with a first input end, a second input end, a third input end, an output end, a triode Q1, a triode Q2, a triode Q3, a capacitor C1 and a resistor R1, the first input end is connected with a collector of a triode Q1, the second input end is connected with a collector of a triode Q2, the third input end is connected with a collector of a triode Q3, the triode Q1, a triode Q2 and an emitter of the triode Q3 are connected in parallel, one end of the capacitor C1 is grounded, one end of the resistor R1 is also grounded, the other end of the capacitor C1 is connected with the other end of the resistor R1 and the output end in parallel and then connected with one end of the triode Q1, the triode Q2 and one end of the triode Q3 in parallel. The three voltages are inserted into the first input end, the second input end and the third input end of the clamp at one time, different voltages are provided for the equipment to be tested by controlling the conduction of the triode, and the compatibility of the power supply is verified by judging whether the equipment is started, so that the cost is low and the operation is convenient.

Description

Clamp for verifying compatibility of power supply

Technical Field

The utility model discloses a clamp for verifying power supply compatibility. The method is used for verifying whether the device to be tested can work normally when different voltages are input. The method is mainly used for verifying the compatibility of the power supply of the device to be tested in the research and development stage.

Background

In order to ensure that a device to be tested can not be damaged under the condition of voltage input, compatibility verification of various input voltages is required, most of the most common DC JACK power adapters on the market currently are 54V, 12V and 5V, verification is performed through manual plugging, manual watching and plugging verification are required, time and labor are wasted, in order to improve efficiency, the clamp is invented, manual operation can be replaced, and efficiency is improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a clamp for verifying the compatibility of a power supply, which is low in cost and convenient to operate by inserting three voltages into a first input end, a second input end and a third input end of the clamp at one time, providing different voltages for equipment to be tested by controlling the conduction of a triode and verifying the compatibility of the power supply by judging whether the equipment is started.

In order to solve the problems, the technical scheme adopted by the utility model is as follows:

the utility model provides a verify anchor clamps of power compatibility, includes the PCB board, be equipped with first input, second input, third input, output, triode Q1, triode Q2, triode Q3, electric capacity C1 and resistance R1 on the PCB board, first input links to each other with triode Q1's collecting electrode, triode Q1's base is passed through first control line and is connected with external control circuit, the second input links to each other with triode Q2's collecting electrode, triode Q2's base is passed through the second control line and is connected with external control circuit, the third input links to each other with triode Q3's collecting electrode, triode Q3's base is passed through the third control line and is connected with external control circuit, triode Q1, triode Q2 and triode Q3's projecting pole are parallelly connected, electric capacity C1's one end ground connection, resistance R1's one end also ground connection, electric capacity C1's the other end and resistance R1's the other end and output connect in parallel after with triode Q1, The parallel connection end of the transistor Q2 and the transistor Q3 is connected.

The further technical scheme is that the first input end, the second input end, the third input end and the output end are DC JACK female connector seats.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: the three voltages are inserted into the first input end, the second input end and the third input end of the clamp at one time, different voltages are provided for the equipment to be tested by controlling the conduction of the triode, and the compatibility of the power supply is verified by judging whether the equipment is started, so that the cost is low and the operation is convenient.

Drawings

FIG. 1 is a schematic of the present invention.

In the figure: 1. an output end; 2. a third input terminal; 3. a second input terminal; 4. a first input terminal; 5. and (7) a PCB board.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1, a fixture for verifying compatibility of a power supply is used to verify whether a device to be tested can work normally when different voltages are input. Including PCB board 5, be equipped with first input 4, second input 3, third input 2, output 1, triode Q1, triode Q2, triode Q3, electric capacity C1 and resistance R1 on the PCB board 5, first input 4 links to each other with triode Q1's collecting electrode, triode Q1's base is passed through first control line and is connected with external control circuit, second input 3 links to each other with triode Q2's collecting electrode, triode Q2's base is passed through second control line and is connected with external control circuit, third input 2 links to each other with triode Q3's collecting electrode, triode Q3's base is passed through third control line and is connected with external control circuit, triode Q1, triode Q2 and triode Q3's projecting pole are parallelly connected, electric capacity C1's one end ground connection, resistance R1's one end also ground connection, electric capacity C1's the other end and resistance R1's the other end and output 1 connect in parallel back and triode Q1, The parallel connection end of the transistor Q2 and the transistor Q3 is connected.

The first input end 4, the second input end 3, the third input end 2 and the output end 1 are DC JACK female sockets.

The working principle is as follows: 1. the first input end 4 is connected with a 54V voltage source through a cable, the second input end 3 is connected with a 12V voltage source through a cable, the third input end 2 is connected with a 5V voltage source through a cable, and the output end 1 is connected with a device to be tested through a cable. And voltage sources of 54V, 12V and 5V are used as voltage inputs and are used as input sources for voltage compatibility verification of the device to be tested. 2. The power is supplied through a triode Q1, a triode Q2 and a triode Q3 respectively, when a control signal controlA transmitted by a first control line is at a high level, and control signals controlB and controlC transmitted by a second control line and a third control line are at a low level, the triode Q1 is conducted, only a 54V voltage source outputs the control signals to the power input end of the device to be tested through an output end 1, and a capacitor C1 and a resistor R1 are loads carried by the analog power adapter. When the control signal control B transmitted by the second control line is at high level and the control signals control A and control C transmitted by the first control line and the third control line are at low level, the triode Q2 is conducted, and only 12V voltage is output and is output to the power input end of the device to be tested through the output end 1. When the control signal control c transmitted by the third control line is at high level and the control signals control a and control b transmitted by the first and second control lines are at low level, the transistor Q3 is turned on, and only 5V is output and the output terminal 1 is output to the power input terminal of the device to be tested. 3. The device to be tested is a power supply powered device, and the starting function verification under different voltage states is carried out when the device to be tested is used as a load.

When the clamp is used for verification, a first input end 4 is connected with a 54V voltage source through a cable, a second input end 3 is connected with a 12V voltage source through a cable, a third input end 2 is connected with a 5V voltage source through a cable, an output end 1 is connected with a device to be tested through a cable, then power is supplied through a triode Q1, a triode Q2 and a triode Q3 respectively, when a control signal controlA transmitted by a first control line is high level, control signals controlB and controlC transmitted by a second control line and a third control line are low level, the triode Q1 is conducted, only 54V voltage is output and is output to the power input end of the device to be tested through the output end 1, a capacitor C1 and a resistor R1 are loads carried by an analog power adapter, when the 54V voltage source supplies power to the device to be tested, the device to be tested can not be normally started and is not damaged, i.e. the 54V input has no effect on the device under test. When the control signal control B transmitted by the second control line is at a high level, and the control signals control A and control C transmitted by the first control line and the third control line are at a low level, the triode Q2 is conducted, only 12V voltage is output and is output to the power supply input end of the device to be tested through the output end 1, when the 12V power supply supplies power to the device to be tested, the device to be tested cannot be normally started up and is not damaged, namely, the 12V input has no influence on the device to be tested. When the control signal control C transmitted by the third control line is at a high level and the control signals control A and control B transmitted by the first control line and the second control line are at a low level, the triode Q3 is conducted, only 5V voltage is output at the moment and the output end 1 is output to the power input end of the device to be tested, when the 5V power supply supplies power to the device to be tested, the device to be tested can be normally started, namely the device to be tested is compatible with the 5V power supply, the 54V and 12V power supply inputs do not influence the device to be tested, the function is normal, and the voltage compatibility of the device to be tested is good. The scheme is simple to realize, the cost is saved, the cost of the clamp is only dozens of money, and the operation is convenient.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a verify anchor clamps of power compatibility ability which characterized in that: including PCB board (5), be equipped with first input (4), second input (3), third input (2), output (1), triode Q1, triode Q2, triode Q3, electric capacity C1 and resistance R1 on PCB board (5), first input (4) link to each other with triode Q1's collecting electrode, triode Q1's base is passed through first control line and is connected with external control circuit, second input (3) link to each other with triode Q2's collecting electrode, triode Q2's base is passed through the second control line and is connected with external control circuit, third input (2) link to each other with triode Q3's collecting electrode, triode Q3's base is passed through the third control line and is connected with external control circuit, triode Q1, triode Q2 and triode Q3's projecting pole are parallelly connected, electric capacity C1's one end ground connection, resistance R1's one end also ground connection, the other end of the capacitor C1 is connected with the other end of the resistor R1 and the output end (1) in parallel and then is connected with one end of the triode Q1, the triode Q2 and one end of the triode Q3 in parallel.

2. The jig for verifying compatibility of power supplies of claim 1, wherein: the first input end (4), the second input end (3), the third input end (2) and the output end (1) are DC JACK female head seats.