Wuxi Guanya Refrigeration Technology co., ltd

How to test the components of the chip temperature control with a multimeter?

The chip temperature control device is used in components such as chips, semiconductors, and integrated circuits. How do you use a multimeter for these common components?

Transformers, deflection coils, compensation inductors, etc. of electronic components, because the resistance values of the inductive components wound by the wires are very low, the short-circuit faults of them are difficult to measure; the open-circuit faults depend on testing the resistance of the two ends of the components. Should be greater than its normal value (need to know its resistance in advance or find a similar type of component after testing). Test the forward and reverse resistance should comply with the PN junction law, the multimeter value is low blocking (R × 10 or R × 100), when the diode is connected in parallel with the capacitor, due to the capacitor charging and discharging, the test needs to wait for a while, until the resistance is stable. After the diode and the inductor are connected in parallel, the resistance of the inductor is small, which is invalid in the road test.

The forward and reverse resistance between the e-b or b-c poles of the test triode electronic components still conforms to the test rule of the PN junction, and the difference between the forward and reverse resistance values between the measured e-c is smaller. The high power tube is measured with R×100 or R×1K. It should be noted that the transistor is more complicated in the road condition, and only when the PN junction is actually broken or broken, can it be seen that when the resistance of the parallel component between the two poles is too low, it is effective to disconnect the one pole detection.

The measured value of the resistance of the test electronic component must be less than or equal to the nominal value of the resistor (as seen from the appearance of the resistor or see the mark on the schematic). If it is greater than the nominal value, the resistor is damaged. If it is a potentiometer or a semi-adjustable resistor, one end of the multimeter can be connected to the potentiometer moving point, and the other end can be connected to any point. When the shaft handle is rotated, the resistance value should be changed, and the measured resistance value should also be less than or equal to the nominal resistance value.

If there is no short-circuiting component at the two ends of the capacitor (such as an inductor coil), the resistance of the two terminals should be greater than zero, and the capacitor with a large capacity should be charged and discharged. Otherwise, the capacitor has broken down or failed.

Components can be judged by using a multimeter to test whether it is good or bad, which can improve the inspection speed of components, and is also beneficial to the effective operation of the chip temperature control equipment in the test work.
(Note: Some of the original content is from related papers. If infringement, please contact us in time to delete, thank you.)
Related News
  • LNEYA Is Exhibiting At Achema 2018

    LNEYA Is Exhibiting At Achema 2018

    January 11, 2018​The LNEYA Group will participate in the ACHEMA -World Forum and Leading Show for the Process Industries,Frankfurt am Main, Germany.view
  • Approaching LNEYA 5 Main Products

    Approaching LNEYA 5 Main Products

    January 11, 2018Industrial Chiller:Industrial Chiller varies from dynamic temp. Special Chiller:Special Chiller consist of Multi-reactor chiller (TCU).Environmental Chamber:The test object is connected to a testing adapter. Industrial Freezer:Industrial freezer consist oview
  • The Analysis Of Ultra Low Freezer'S Price

    The Analysis Of Ultra Low Freezer'S Price

    July 4, 2018What are the characteristics and functions of ultra low freezer: 1. Ultra low freezer can prevent the precision of machine equipment from being influenced by the change of oil temperature in the proce...view
  • The Application of Cold Plate Freezer

    The Application of Cold Plate Freezer

    July 4, 2018The refrigeration system of cold plate freezer adopts secondary super-cooler technology with the rapid refrigeration and low limiting temperature. It uses imported brand name semi-hermetic piston comp...view
  • 2018 Automotive Testing Expo

    2018 Automotive Testing Expo

    September 11, 2018Automotive Testing Expo 9.25-9.27view
  • The Analysis Of How To Maintain The Low Temperature Circulator In Daily Life

    The Analysis Of How To Maintain The Low Temperature Circulator In Daily Life

    July 4, 2018Guanya is a leading role in heating cooling circulator. It provides the customers with proposal and technology of controlling the cold and heat, temperature control system with stable property, extend...view
Related Products
  • SLJ -110℃~-150℃

    SLJ -110℃~-150℃

    January 11, 2018Temperature ranges from - 5 ~ - 150 ℃, can meet different temperature; Adopt environmental protection refrigerants; Famous brand semi-closed piston compressor, semi-closed bipolar piston compressor, semi-hermetic screw compressor, main brand are BOCK.view
  • Single Fluid Heat Transfer System SR

    Single Fluid Heat Transfer System SR

    April 10, 2018Working temperature range from -25℃to 200℃, other temperature range need to set to the widest temperature range(-50℃to 250℃) Centralized control of 2~20 reactors, each reactor's and jacket temperature can be set independently. One system control multipleview
  • Reactor Temperature System ZLF

    Reactor Temperature System ZLF

    April 10, 2018A set of cooling heat exchanger, heat exchanger, through proportional adjusting valve control cold heat into the heat exchanger, then through the uniform medium input to the reactor jacketed to do heat exchange and temp. Control, system has inside expansiview
  • LT -45℃~30℃

    LT -45℃~30℃

    April 10, 2018Low Temperature Cooling Chiller LT model: LT-5018N,LT-5040N,LT-5062N,LT-5090N,LT-50A1N,LT-50A2N; Medium Temperature Range: -45℃~30℃. ASET multifunctional controller, control outlet temperature of water tankview
  • TES -45℃~250℃

    TES -45℃~250℃

    February 28, 2019-45℃~+200℃ 2.5kW~25kW ±0.3℃view
  • TES -85℃~200℃

    TES -85℃~200℃

    February 28, 2019Temperature control range:-85 ° C ~ 200 ° CPower range:2.5kW~25kWTemperature control accuracy:±0.3°CModelTES-8525WTES-8555WTES-85A10WTES-85A15WTES-85A25WTemp. Range-85℃~200℃-85℃~200℃-85℃~200℃-85℃~200℃-85℃~200℃Heating P...view
Tel: + 86 18751545184
E-mail: sales@cnzlj.com
Add: No.203, Hongyun Road, Hongshan Street, Optoelectronics Park, Xinwu District, Wuxi City, Jiangsu Province, China
code chat