Lithium Battery 3.7V Lithium Polymer Battery 3.2V LifePo4 Battery 1.2V Ni-MH Battery Button Coin Battery
3.7V Battery Pack 7.4V Battery Pack 11.1V Battery Pack 14.8V Battery Pack Other Battery Pack
Sino Science&Technology Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of Lifepo4 batteries,energy storage battery,portable UPS power supply,personalized customization lithium battery pack etc .
Environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery,3.7V lithium polymer battery, NiMH battery , NiCD battery ,Lead acid battery,dry cell battery ,alkaline battery ,heavy duty battery, button cell battery etc. we devote to R&D,innovation ,production & sales
Shenzhen Green Power Energy Battery Co.,ltd specializes in a wide range of digital battery such as environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery, 3.7V lithium polymer battery, NiMH battery, NiCD battery, dry cell battery, alkaline battery, heavy duty battery, button cell battery etc. we devote to R&D, innovation, production & sales. With automatic production machines we have been exported goods to all over the world over 15years. We have complete exported certificate such as KC, CE, UL, BSCI, ROHS, BIS, SGS, PSE etc
Dongguan Datapower New Energy Co.,ltd is a high-tech production enterprise which specialize in the R&D and production&sale of lithium polymer batteries,drone battery,airplane batteries &battery pack etc.
Anhui Seong-hee New Energy Technology Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of primary batteries. And mainly produces and sells alkaline batteries & carbon zinc batteries. there are size AA, AAA, C, D, 9V etc
Guizhou STD Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production & sale of lithium polymer batteries, drone battery, airplane batteries & battery pack etc.
release time:2024-03-04 Hits: Popular:AG11 battery
When many of us electronic enthusiasts assemble and repair electronic devices, we often need to measure the resistance value of certain components or branches in the circuit. Beginners usually think that the measurement can only be accurate if the components are removed. In fact, in many cases it can be measured directly on the road, and there are many techniques for measuring the resistance of electronic components.
1. Roughly determine the resistance value of the component when it is open or short-circuited
When testing a circuit, if you suspect that a component is damaged (open circuit or breakdown short circuit), you can roughly measure its on-circuit resistance to make a judgment. For example: some diodes and transistors work in high current and high voltage situations and are more susceptible to damage. During maintenance, in order to make a quick judgment, you can use a multimeter to directly measure the forward and reverse resistance of the diode after the circuit is powered off. If the resistance values are both very large, it means that the circuit is open; if the resistance values are very small, it may be broken down. short circuit. At this time, you should also check whether there is a component with a small resistance connected in parallel with it. If there is, you need to solder one end of the diode before testing. Transistors can also be tested in the same way.
Some insurance and current-limiting resistors in the circuit generally have very small resistance values and are easily burned out and open circuited. When the circuit is powered off, these resistors can be directly detected on the circuit because they are usually connected in series between the load and the power supply. If the measured resistance value is less than or equal to
2. Be precise on the road
Measuring element resistance
The precise resistance of some components can be measured directly on the road. As shown in Figure 1, R1 and R2 have components with infinite DC resistance such as capacitors and switches that separate them from other parts of the circuit. After the power is turned off, measuring on the road is the same as taking it off. Although some components in the factory cannot be measured directly, their accurate resistance values can be measured indirectly. As shown in Figure 2, element 1 and element 2 are connected in series. If the resistance value R1 of element 1 is known, only the terminal voltages U1 and U2 of element 1 and element 2 need to be measured. According to the characteristics of the series circuit 11=12 and Ohm's law, it can be known that the terminal voltage of the component is proportional to its resistance value, so only by accurately measuring the values of Ul and U2, the resistance value of component 2 can be obtained (note: component 1 and Component 2 should all be linear components).
Read recommendations:
Low temperature ultra -thin battery.solar energy battery storage system manufacturer
LR521 battery.Can lithium-ion batteries only be charged and discharged 500 times?
Last article:1.5v Carbon battery.What is the reason for the decrease in battery capacity
Next article:CR2016 battery.Global research and development hotspots for automotive lithium batteries
Popular recommendation
801520 battery sales
2023-03-22601248 battery
2023-03-22solar energy storage system battery pack lithium
2023-05-09wall-mounted energy storage battery Manufacturing
2023-05-10portable energy storage battery power supply Factory
2023-05-10801738 450mAh 3.7V
2022-08-19602030 300mAh 3.7V
2022-08-1918650 1800mAh 3.7V
2022-08-19702535 600mAh 3.7V
2022-06-2718650 2500mAh 3.7V
2022-08-19Aromatherapy
2022-07-22Coin Battery CR 1025
2022-09-27801752 720mAh 3.7V
2022-08-1918650 1500mAh 3.7V
2022-08-19Rack-mounted energy storage battery GN-10240
2022-09-27LR41 battery
2023-06-25li ion 18650 battery pack
2023-06-25CR1225 battery
2023-06-2518650 lithium battery cells
2023-06-25lithium battery 18650 3.7v
2023-06-25Advantages of Environmentally Friendly Lithium-Ion Batteries
2024-12-13Which is better, lithium battery or lead-acid battery?
2022-11-1818650 rechargeable battery lithium 3.7v 3500mah.What are the main reference factors for choosing lit
2024-01-11Polymer Battery Intelligent Management System
2025-06-23Lithium battery conductivity
2024-07-02How is the development status of polymer batteries!18650 lithium battery 2600mah
2023-09-05The characteristics of lithium iron phosphate battery.803040 battery
2023-05-26What is the ternary lithium battery?solar energy storage lifepo4 battery 24v 200ah
2023-03-1648V lithium ion battery protection board
2022-12-06What are the popular product advantages of large capacity lithium batteries!18650 battery 3500mah li
2023-08-26