CN210243690U - Adapter for testing low-dropout voltage regulator - Google Patents

Abstract

The utility model relates to an adapter for low dropout regulator device test, comprising a base plate, the device under test seat, the relay array, first and second socket, characterized by bottom plate has the double-sided PCB board of printing line for the upper and lower surface design all, still be provided with peripheral component on the bottom plate, blank pad, the ground end, the input, output and each region of control end, the input and the input end area of device under test seat are connected, the output and the output end area of device under test seat are connected, the control end and the control end area of device under test seat are connected, the device under test seat is direct or be connected with first socket and second socket respectively through the relay array, peripheral component district, the one end in blank pad district and ground end area is connected with the device under test seat, peripheral component district, the other end in blank pad district and ground end area is connected with first socket and second socket respectively. The utility model discloses simple structure, low cost, commonality are strong, convenient to use and the measuring accuracy is high.

Description

Adapter for testing low-dropout voltage regulator

Technical Field

The utility model relates to a test auxiliary device of analogue means particularly is an adapter that is used for low pressure difference steady voltage device to test.

Background

Low dropout regulators are increasingly used in production practice as high-precision, high-stability regulated power supplies. The low dropout regulator must pass the test before being put into use, and because the low dropout regulator has various types, different pin definitions, more electric parameter assessment indexes and different test system resources used by each parameter, batch test is carried out, particularly when the number of tested devices is small and the number of the tested devices is large, proper sockets and connecting lines are required to be replaced repeatedly, and the test is very complicated. In addition, the low dropout regulator belongs to an analog device, is greatly influenced by voltage current fluctuation, has poor anti-interference capability, large power consumption and high requirement on peripheral elements, and all the factors can influence the test precision. Therefore, it is necessary to design an adapter for testing a low-dropout regulator with simple structure, low cost, strong versatility, convenient use and high testing precision.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a simple structure, low cost, commonality are strong, convenient to use and the high adapter that is used for low pressure differential voltage regulator device to test of measuring accuracy.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an adapter for testing a low-dropout voltage regulator comprises a base plate, a tested device seat, a relay array, a first socket and a second socket which are respectively matched with a first plug and a second plug of an STS8105A tester, and is characterized in that the tested device seat and the relay array are arranged on the front surface of the base plate, the first socket and the second socket are arranged on the back surface of the base plate, the base plate is a double-sided PCB (printed circuit board) with printed lines on the upper surface and the lower surface, the base plate is also provided with a peripheral element area, a blank pad area, a ground end area, a first input end area, a second input end area, a first output end area, a second output end area and a control end area, the input end of the tested device seat is connected with the first input end area and the second input end area, the output end of the tested device seat is connected with the first output end area and the second output end area, the control end of the tested device seat is connected with the control end area, and the tested device seat is directly connected with the first socket and the, one end of the peripheral element area, the blank pad area and the ground terminal area is connected with the tested device seat, and the other end of the peripheral element area, the blank pad area and the ground terminal area is respectively connected with the first socket and the second socket.

Furthermore, the device seat to be tested and the relay array are arranged in the middle of the bottom plate, and a peripheral element area, a blank pad area and a ground end area are sequentially and symmetrically arranged on two sides of the device seat to be tested.

Further, the first input end region, the second input end region, the first output end region, the second output end region and the control end region are copper-clad regions.

The utility model adds the simulation grounding terminal and connects the simulation grounding terminal to the system power supply, thereby realizing the small current test of the simulation grounding terminal; the utility model is specially provided with a peripheral element area near the tested device seat, thereby effectively avoiding the generation of parasitic capacitance and coupling inductance; the utility model adopts the design of Kelvin four-wire method, and connects the Force wire and the Sense wire in a distinguishing way, thus ensuring high testing precision; the utility model discloses cover copper in input, output and the regional large tracts of land of ground, strengthened the radiating effect. The utility model discloses simple structure, low cost, commonality are strong, convenient to use.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a bottom view of FIG. 1;

fig. 4 is a partially enlarged view of fig. 2.

In the figure: 1-a bottom plate; 1.1-peripheral element region; 1.2-blank pad area; 1.3-ground terminal region; 1.4.1 — a first input end region; 1.4.2-a second input end region; 1.5.1 — a first output end region; 1.5.2-a second output end region; 1.6-control terminal region; 2-a device under test seat; 3-a relay array; 4-a first socket; 5-a second socket; 6-flying line.

Detailed Description

The present invention will be further described with reference to the following drawings and examples, but the examples should not be construed as limiting the present invention.

The adapter for testing the low dropout regulator comprises a base plate 1, a device seat 2 to be tested, a relay array 3, a first socket 4 and a second socket 5 which are respectively matched with a first plug and a second plug of an STS8105A tester, wherein the device seat 2 to be tested and the relay array 3 are arranged on the front surface of the base plate 1, the first socket 4 and the second socket 5 are arranged on the back surface of the base plate 1, the base plate 1 is a double-sided PCB (printed circuit board) with printed lines designed on the upper surface and the lower surface, the base plate 1 is also provided with a peripheral element area 1.1, a blank pad area 1.2, a ground end area 1.3, a first input end area 1.4.1, a second input end area 1.4.2, a first output end area 1.5.1, a second output end area 1.5.2 and a control end area 1.6, the input end of the device seat 2 to be tested is connected with the first input end area 1.4.1 and the second input end area 1.4.2, the output end area 1.5.2 of the device seat 2 to be tested, the control end of the device seat 2 to be tested is connected with the control end area 1.6, the device seat 2 to be tested is connected with the first socket 4 and the second socket 5 directly or through the relay array 3, one end of the peripheral element area 1.1, the blank pad area 1.2 and the ground end area 1.3 is connected with the device seat 2 to be tested, and the other end of the peripheral element area 1.1, the blank pad area 1.2 and the ground end area 1.3 is connected with the first socket 4 and the second socket 5 respectively.

The preferred embodiments are: in the above scheme, the device under test base 2 and the relay array 3 are disposed in the middle of the base plate 1, and the peripheral device region 1.1, the blank pad region 1.2 and the ground terminal region 1.3 are symmetrically disposed on two sides of the device under test base 2 in sequence.

The preferred embodiments are: in the above solution, the first input end region 1.4.1, the second input end region 1.4.2, the first output end region 1.5.1, the second output end region 1.5.2 and the control end region 1.6 are copper-clad regions.

Those not described in detail in this specification are prior art to the knowledge of those skilled in the art.

Claims (3)

1. An adapter for testing a low dropout regulator comprises a bottom plate (1), a tested device seat (2), a relay array (3), a first socket (4) and a second socket (5) which are respectively matched with a first plug and a second plug of an STS8105A tester, and is characterized in that: the device to be tested (2) and the relay array (3) are arranged on the front face of the base plate (1), the first socket (4) and the second socket (5) are arranged on the back face of the base plate (1), the base plate (1) is a double-sided PCB with printed lines designed on the upper surface and the lower surface, the base plate (1) is further provided with a peripheral element area (1.1), a blank pad area (1.2), a ground end area (1.3), a first input end area (1.4.1), a second input end area (1.4.2), a first output end area (1.5.1), a second output end area (1.5.2) and a control end area (1.6), the input end of the device to be tested (2) is connected with the first input end area (1.4.1) and the second input end area (1.4.2), the output end of the device to be tested (2) is connected with the first output end area (1.5.1) and the second output end area (1.5.2), the device to be tested (2) is connected with the control end area (1.6) of the relay array or is directly connected with the first test device (3) or the relay array (3) through the first input end area and the second input end area And the two sockets (5) are connected, one ends of the peripheral element area (1.1), the blank pad area (1.2) and the ground end area (1.3) are connected with the tested device base (2), and the other ends of the peripheral element area (1.1), the blank pad area (1.2) and the ground end area (1.3) are respectively connected with the first socket (4) and the second socket (5).

2. The adapter for testing a low dropout regulator device according to claim 1, wherein: the device base (2) to be tested and the relay array (3) are arranged in the middle of the bottom plate (1), and the peripheral element area (1.1), the blank pad area (1.2) and the ground end area (1.3) are sequentially and symmetrically arranged on two sides of the device base (2) to be tested.

3. The adapter for testing the low dropout regulator device according to claim 1 or 2, wherein: the first input end region (1.4.1), the second input end region (1.4.2), the first output end region (1.5.1), the second output end region (1.5.2) and the control end region (1.6) are copper-clad regions.

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