2023.09.19 Customer Annual Factory Audit_Industry Trends_News & Events

中文

19 2023-09

　　Today, the Topband visited our factory for the annual factory audit. The company is a global leading provider of intelligent control technology, we have established a partnership with them for more than 15 years."

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September 11,2023

Application Explanation of Self Recovery Chip Fuses in Microcontrollers.7.5 amp mini blade fuse

　　　　PTC self recovery patch fuse is used for overcurrent protection between motherboard power supplies and backend equipment overcurrent protection. Regarding the issue of PTC self recovery patch fuse for short circuit and overcurrent protection outside the microcontroller. The output port of the microcontroller has direct external wiring. If there is a wiring error, it is easy to burn out the IC. In addition, if there is a load overload, it can also burn out the IC. Therefore, the output port of the I/O port is usually connected in series with a self recovery patch fuse for overcurrent protection.　　In microcontroller circuit protection, disposable fuses or fuse resistors are also used for protection. Glass tube fuses and fuse resistors are traditional protection applications, with the advantage of low cost.　　However, this application has gradually been phased out, and PTC self recovery patch fuses have been used instead. Due to the fact that disposable fuses only fuse for overcurrent

July 17,2023

Precautions for installation of SEFUSE Thermal cutoff.radial thermal fuse

　　　　When bending the lead wire, it should be bent from the component at least 6 millimeters away from the root; When bending, it is not allowed to damage the roots and leads, and it is not allowed to forcefully pull, press, or twist the leads.　　2. When the thermal fuse is fixed by screws, riveting, or wiring terminals, it should be able to prevent mechanical creep and the occurrence of poor contact.　　3. The connecting components should be able to work reliably within the working range of the electrical product, without displacement due to vibration and impact.　　When conducting wire welding operations, the heating humidity should be limited to the minimum, and attention should be paid not to apply high temperatures to the thermal fuse; Do not forcefully pull, press, or twist the thermal fuse and leads; After welding, it should be immediately cooled for more than 30 seconds.　　5. The thermal fuse can only be used under the specified rated voltage, current, and specified temperature condit

July 10,2023

The difference between fuse and circuit breaker.battery fuse blown symptoms

　　　　The same thing is that both can achieve short-circuit protection. The principle of a fuse is to use current to flow through the conductor, causing it to heat up. After reaching the melting point of the conductor, the conductor melts, so disconnecting the circuit protects the electrical appliances and circuits from being burned out. It is an accumulation of heat, so overload protection can also be achieved. Once the melt burns out, it needs to be replaced.　　A circuit breaker can also achieve short-circuit and overload protection for circuits, but the principle is different. It achieves circuit breaker protection through the bottom magnetic effect of the current (electromagnetic release), and overload protection through the thermal effect of the current (not fusing, and there is often no need to replace components). In practice, when the electrical load in the circuit approaches the load of the fuse used for a long time, the fuse will gradually heat up until it blows. As mentioned ab

October 26,2023

resettable surface mount fuse.Some precautions in the use of fuse tubes

　　　　1. The rated voltage of the selected fuse should be greater than the input voltage of the protected circuit.　　2. The rated current of UL specification fuses is determined under laboratory conditions and should be less than 75% of the nominal value during actual use.　　3. The rated current of IEC standard fuse tubes can be used at 90% or 100% of the nominal value in actual use.　　4. The working life of fuses varies under different operating temperatures. The higher the temperature, the shorter the working life of the fuse; When selecting fuses in practice, it is necessary to refer to the working environment temperature for selection　　5. The breaking capacity of a fuse tube is directly proportional to its volume and inversely proportional to the rated voltage.　　6. Under more than 100000 pulse impacts, the pulse I2T of the protection circuit should be less than 20% of the rated I2T of the fuse tube.

November 01,2023

Electric vehicle malfunctions due to lack of fuses or diodes

　　　　With the development of life, electric vehicles have also become popular. In order to facilitate people's travel, many families have started to use electric vehicles, which are convenient and affordable. However, there are still many unknown problems that arise during use. Today, the editor will briefly talk about the structural issues of electric vehicles.　　Accidents involving spontaneous combustion or even explosions in electric vehicles occur from time to time. If the cause of external open flames is excluded, the only reason for electric vehicle fires is a short circuit. Any short circuit in the battery, charger, or other components will turn the electric vehicle into a powder keg! How to solve it? (Related knowledge: What is the relationship between fuse material and fuse failure?)　　Installing a "fuse or diode" for an electric vehicle is the simplest solution, as the fuse or diode serves as a short-circuit protection. Someone has conducted experiments on an electric vehicle wi

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2023.09.19 Customer Annual Factory Audit

19

2023-09