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CN-224204965-U - Tester and isolation power supply system thereof

CN224204965UCN 224204965 UCN224204965 UCN 224204965UCN-224204965-U

Abstract

The application relates to a testing machine and an isolation power supply system thereof, comprising a plug frame power supply arranged on an electrical cabinet and a slot power supply board arranged on a testing head, wherein the plug frame power supply is connected with the slot power supply board through a cable, the slot power supply board is connected with a service board card in the testing head, the plug frame power supply outputs direct-current voltage to the slot power supply board, the slot power supply board converts the received direct-current voltage to generate power supply voltage with corresponding amplitude and transmits the power supply voltage to the service board card for supplying power, the types, the number and the wire diameters of the cables between the electrical cabinet and the testing head are reduced, the equipment installation and the maintenance are convenient, and the use convenience is improved.

Inventors

  • WANG HANG
  • XIAO KAIXIN
  • JU QIUPENG
  • SHAN XIAOXUAN

Assignees

  • 杭州长川科技股份有限公司

Dates

Publication Date
20260505
Application Date
20250430

Claims (10)

  1. 1. The isolation power supply system of the testing machine is characterized by comprising a plug frame power supply arranged on an electric cabinet and a slot power supply board arranged on a testing head, wherein the plug frame power supply is connected with the slot power supply board through a cable and is connected with a service board card in the testing head, the plug frame power supply outputs direct-current voltage to the slot power supply board, and the slot power supply board converts the received direct-current voltage to generate power supply voltage with corresponding amplitude and transmits the power supply voltage to the service board card for power supply.
  2. 2. The isolated power supply system of claim 1, wherein the plug frame power supply comprises a plurality of rectifying modules, wherein the rectifying modules are connected with the slot power panel through cables, rectify the received three-phase alternating current and output direct current voltage to the slot power panel.
  3. 3. The isolated power supply system of claim 1, wherein the slot power panel comprises a plurality of power bricks connected with the service board card, the power bricks are used for respectively converting received direct current voltages in a way of being arranged independently and in series to generate supply voltages with corresponding magnitudes to be transmitted to the service board card, or the slot power panel is used for transmitting the received direct current voltages to the service board card.
  4. 4. The isolated power supply system of claim 3, wherein the slot power panel further comprises a power input module, a controller, a direct current conversion module, a voltage stabilizer and an isolation chip, wherein the power input module is connected with the power brick and the direct current conversion module, the controller is connected with the direct current conversion module and the isolation chip, the isolation chip is connected with the power brick and the direct current conversion module, the voltage stabilizer is connected with the power brick and the isolation chip, the power input module transmits the accessed direct current voltage to the power brick and the direct current conversion module, and the controller acquires alarm information of each power brick through the isolation chip and gathers and stores the alarm information.
  5. 5. The isolated power system of claim 1, further comprising a filter disposed on the test head, the filter connected to the slot power board and connected to the bezel power source by a cable.
  6. 6. The isolated power system of any one of claims 1-5, further comprising a test head power supply temperature monitoring module disposed on the test head and a regulator cubicle power supply temperature monitoring module disposed on the regulator cubicle, the regulator cubicle power supply temperature monitoring module connecting the plug frame power supply and the test head power supply temperature monitoring module, the test head power supply temperature monitoring module connecting the slot power supply board and a management module in a service board card; after the test head power supply temperature monitoring module powers on the management module in the service board card, the electrical cabinet power supply temperature monitoring module enables the plug-in frame power supply to output direct-current voltage and/or After the test head power supply temperature monitoring module powers down the management module in the service board card, the electrical cabinet power supply temperature monitoring module enables the plug frame power supply to stop outputting direct-current voltage.
  7. 7. The isolated power system of claim 6, further comprising a power conversion module disposed in the electrical cabinet, the power conversion module connecting the electrical cabinet power temperature monitoring module and the test head power temperature monitoring module; The power supply conversion module converts the accessed single-phase alternating current into direct current and supplies power to the electrical cabinet power supply temperature monitoring module and the test head power supply temperature monitoring module; And the test head power supply temperature monitoring module sends the alarm information output by the slot position power supply board to the regulator cubicle power supply temperature monitoring module for buffering so as to detect whether an alarm exists by the upper computer.
  8. 8. A test machine comprising an electrical cabinet, a test head and an isolated power supply system as claimed in any one of claims 1 to 7.
  9. 9. The machine of claim 8, further comprising a filtering module disposed in the electrical cabinet, the filtering module being connected to a plug frame power supply and a power conversion module in the isolated power supply system, and the external ac power being filtered and then delivered to the plug frame power supply and the power conversion module.
  10. 10. The test machine of claim 9, wherein the filtering module includes a harmonic filter, a three-phase ac EMI filter, and a single-phase ac EMI filter, the harmonic filter being connected to an ac power cable, the three-phase ac EMI filter being connected to the harmonic filter and the plug frame power source, the single-phase ac EMI filter being connected to the ac power cable and the power conversion module.

Description

Tester and isolation power supply system thereof Technical Field The application relates to the technical field of semiconductor testing, in particular to a testing machine and an isolated power supply system thereof. Background The power supply system of the semiconductor tester needs to provide various high-power low-voltage direct-current voltage sources for the service board card. The testing machine generally selects mature AC-DC (alternating current-direct current) modules on the market as voltage sources to output voltages with different magnitudes, so that different power supply requirements of the business board card are met. The AC-DC module power supply has large volume and cannot be installed in a limited space of a test head, so that the AC-DC module is often installed in an electrical cabinet in a traditional test machine and then is connected to a plurality of service boards in the test head in parallel through a plurality of cables, a plurality of cables with large wire diameters can be introduced, great inconvenience is brought to the installation and maintenance of equipment, and the defect of low use convenience exists. Disclosure of utility model In view of the above, it is desirable to provide a tester and an isolated power supply system thereof that can improve the convenience of use. The application provides an isolation Power supply system of a testing machine, which comprises a plug frame Power supply arranged in an electric cabinet and a Slot Power Board (SPB) arranged in a testing head, wherein the plug frame Power supply is connected with the Slot Power Board through a cable and is connected with a service Board card in the testing head, the plug frame Power supply outputs direct-current voltage to the Slot Power Board, and the Slot Power Board converts the received direct-current voltage to generate Power supply voltage with corresponding amplitude and transmits the Power supply voltage to the service Board card for Power supply. In one embodiment, the plug frame power supply includes a plurality of rectifying modules, and the rectifying modules are connected with the slot power panel through cables, rectify the received three-phase alternating current and output direct current voltage to the slot power panel. In one embodiment, the slot power board includes a plurality of power bricks connected to the service board, the power bricks convert the received dc voltage respectively in a manner of being separately set and being set in series, and generate a power supply voltage with a corresponding amplitude to be transmitted to the service board, or the slot power board transmits the received dc voltage directly to the service board. In one embodiment, the slot power panel further comprises a power input module, a controller, a direct current conversion module, a voltage stabilizer and an isolation chip, wherein the power input module is connected with the power brick and the direct current conversion module, the controller is connected with the direct current conversion module and the isolation chip, the isolation chip is connected with the power brick and the direct current conversion module, the voltage stabilizer is connected with the power brick and the isolation chip, the power input module transmits the accessed direct current voltage to the power brick and the direct current conversion module, and the controller acquires alarm information of each power brick through the isolation chip and stores the alarm information in a summarizing way. In one embodiment, the isolated power supply system further comprises a filter arranged on the test head, wherein the filter is connected with the slot power panel and is connected with the plug frame power supply through a cable. In one embodiment, the isolated power supply system further comprises a Test-head Power Temperature Monitor, TPTM (Test-head Power Temperature Monitor) and an Electrical cabinet power supply temperature monitoring module (Electrical-cabinet Power Temperature Monitor, EPTM) disposed on the Test head, the Electrical cabinet power supply temperature monitoring module connecting the plug frame power supply and the Test-head power supply temperature monitoring module, the Test-head power supply temperature monitoring module connecting the slot power panel and a management module in a service panel card; after the test head power supply temperature monitoring module powers on the management module in the service board card, the electrical cabinet power supply temperature monitoring module enables the plug-in frame power supply to output direct-current voltage and/or After the test head power supply temperature monitoring module powers down the management module in the service board card, the electrical cabinet power supply temperature monitoring module enables the plug frame power supply to stop outputting direct-current voltage. In one embodiment, the isolated power supply system further comprises a power supply conver