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After yesterdays activities of attending Greater Bay Area Technology Seminar, networking luncheon, business matching meetings, Munjeong-dong Raemian Gallery and Ground X Corp visit, today the delegate continue Koreas agenda. At 10 to 11 A.M., the mission visit Doosan Robotics which is part of the Doosan Group and a major global player in the design, development and delivery of advanced collaborative robot systems and solutions to manufatures. It enables smart factories by developing and manufacturing cobots that are capable o...
Date：2019-07-12 [More+]
electronica China, lasting for three days, ringed down the curtain on Mar.22,2019 successfully. Microhm prepared elaborately and exhibited full range of resistors in the site. Customers from all over the world visited Microhm E5 - 5606, consulted resistors and experienced. Our staffs introductions of the features, applications and merits were brief and to the point. Customers not only stayed for a time in front of the reception to learn more about products, but also streamed into Microhms booth to have a close look of the mat...
Date：2019-03-25 [More+]
In the past, a resistor connected in parallel to an ammeter as a shunt to expand the current measurement range is called a shunt resistors, but in recent years resistors used to detect circuit current are collectively referred to as shunt resistors. Shunt resistors are the most welcomed product of Microhm, these days Microhm lauchs a tight size shunt resistor MMS1216. MMS1216 is developed using electron-beam welding technology sandwiching MnCu or MuCuSi strips bettwen large terminal coppers. The power reaches 3W to 5W, resist...
Date：2019-08-07 [More+]
Apart from current sense monitoring using a resistor, like Microhm current sense resistor MMS Series, two other less common methods are used. One uses a Hall Effect sensor to measure the flux field generated by a current. While this is non-intrusive and has the advantage of no insertion loss, it is somewhat expensive and requires a relatively large amount of PCB real estate. The other method, using a transformer to measure induced AC current, is also size and cost intensive; while also useful only for AC current. If using a r...
Date：2019-08-07 [More+]
The digital seismic equipment that amplifies and records reflected seismic signals on a wideband receiver and tape drive in the field utilizes matched and discrete surface-mount foil resistors. Metal foil resistors manufatures target this field for a long time and provide various resistors, like NMS4527, NMS2818 and MPR series by Microhm. For these applications, high-precision foil resistors assure virtually noise-free operation. They offer predictable responses and very precise tracking of amplifiers within an individual sei...
Date：2019-08-06 [More+]
Wirewound resistors, power precision resistors and shunt resistors are composed of Microhm main lineup.The wirewound resistor is usually made by winding insulated resistance wire of a specific diameter around a bobbin. Different wire diameters, lengths, and alloys provide the desired resistance and initial characteristics. Precision wirewound resistors have better ESD stability and lower noise than thin or thick film resistors. Wirewounds also have a lower TCR and better stability. Wirewound resistors are generally classified...
Date：2019-08-06 [More+]
The nominal power rating is defined for a certain ambient temperature in free air. Note that the amount of energy that a resistor in practise can dissipate without causing damage, is strongly dependent on the operating conditions and therefore not equal to the nominal power rating. For example, a higher ambient temperature can significantly reduce the power rating. This effect is referred to as derating. It should be taking into account by the designer. Often the power rating is chosen largely above the electric power. Typica...
Date：2019-08-05 [More+]
The first step for automotive manufacturers looking to purchase a resistor is to analyse its purpose. If it is to be used for discharging excess energy produced during dynamic braking and heating the cabin, we would advise a liquid-cooled resistor. Discharged energy is transferred as heat to the liquid coolant, which can then be circulated to the vehicles heating system. Besides liquid-cooled resistor, power resistor, braking resistors, shunt resistors from well-known suppliers like Micrhm are also used in the automotives. Th...
Date：2019-08-05 [More+]
Nowadays world is shifting towards electrified mobility to reduce the pollutant emissions caused by nonrenewable fossil fueled vehicles and to provide the alternative to pricey fuel for transportation. Benefit from this, suppliers including Microhm Electronics are increasely providing shunt resistors and other current sense resistors to electric vehicles. But for electric vehicles, traveling range and charging process are the two major issues affecting its adoption over conventional vehicles. With the introduction of Wire cha...
Date：2019-08-02 [More+]
Surface mount foil resistors are commonly produced as two terminal devices with solderable wraparound terminations. They are available in a variety of standard footprints including sizes 0603 up to 2512, like Microhm Electronics MPR series, NMS types. The typical surface mount foil resistor consists of a flat, rectangular, insulating substrate (e.g., alumina) on top of which the resistor element is bonded using adhesive materials (e.g., resins or polymers). The resistor element is made from proprietary nickel-chromium based a...
Date：2019-08-02 [More+]
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