Full digital IGBT induction power supply (series type) function introduction: This power supply is a true full-digital power supply. With constant current, constant power, constant temperature, and other ways of power regulation. There are internal control, external control, screen control and other control methods. Powerful management function and setting function, monitoring function, diagnosis, protection function, with powerful communication function. The performance is stable and reliable, and the melting rate reaches 460KW / H-530KW / H per ton, while the melting rate of domestic and foreign peers per ton is basically 600KW / H-700KW / H, and the energy saving effect is far ahead. The energy-saving induction IF power supply working frequency 50 HZ-30000 HZ, the power 50KW-20000KW, is applied to the smelting of non-ferrous and ferrous metals; in metallurgy, casting, diathermy, heating, vacuum smelting and other fields.

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Use of the IGBT module for parallel design considerations Due to the high production cost, the price of 1200V I GB T module greater than 400A in the market. As for the standard 1200V, 200-400A 62mm module, due to the relatively stable technology and product, good product versatility and easy to replace, it is the most economical way to use multiple standard IGBT modules in parallel to improve the current rating at this stage.However, due to the inconsistency of IGBT own parameters and the possible asymmetry caused by circuit layout, it is not a simple job to use IGBT module for parallel design. Unreasonable selection of components as parallel or components can easily fail the device and damage the lines on the main system.Therefore, this paper, from the successful experience of the application department in the client and the test equipment in the factory, and proposes the importance of using star IGBT module for parallel design. Modules generally larger than 100A themselves are made of several chips in parallel, although manufacturers can use chips on the same wafer to connect in parallel to reduce the parameter difference of the module itself.However, it still needs to take into account the individual differences between the resulting module parameters.At the same time, the symmetry of the circuit is a very important influence on parallel, which can be expounded from the two aspects of static and dynamic, from the difference of parameters and the difference of circuit symmetry.

IGBTmodule Method protects the upper and lower pipe through. The photocoupled protection IGBT is achieved by detecting the C-E voltage, and according to the relationship between V ce and Ic, when Ic rises rapidly, Vce follows up.When the Vce value rises to the protection point voltage, the optical coupling will turn off itself and send the error signal to the DSP, the whole process is generally between 5 and 10us.Because such protection is very highly sensitive and has poor accuracy, it is only suitable for short-circuit protection.Figure 2 shows the diagram of Vce and Ic of GD200HFL120C2S. With the rise of Vce, the increase of IC is increasing. The Ic at + 7V actually far exceeds the short-circuit current of the module.When doing dynamic short circuit test, L, Vg, tr, tf and other parameters have strict and stable control, and the current is generally controlled at 8-10 times Ic, as shown in Figure 3. However, the short circuit is tested on the system, and the current will often rise higher due to the switch characteristics, the circuit load and the interference. Common short-circuit protection to drive optical coupling (I) PC929 PC929 is a common drive optical coupling in the inverter industry, with short circuit protection

Advantages of using IPM design and matters needing attention in selection Norman Day brief introduction Because the power circuit structure driven by single or three-phase motor has been quite mature and stable, the power module integrating the power switch and driving circuit of this part has had a revolutionary impact on the concept of frequency converter system design after its introduction. With the maturity of module packaging technology and the rapid decline of cost,There is a trend to gradually replace traditional components and become the mainstream of system design.This integrated power module has a name with high liquidity, which is called integrated / intelligent power module, which is abbreviated as IPM [1].Unfortunately, most designers still regard such components as a black box. They either abandon them for fear of being unable to grasp the problems that may arise from them, or they can only accept the influence of some leading manufacturers and form some specious concepts.However, neither the former nor the latter believe that designers should hold an attitude towards the trend of power integrated packaging. Only by selecting the design concept with competitive advantage and fully mastering the characteristics and limitations of the components used can we ensure that they will not be eliminated by the rapidly changing market. Advantages of using IPM design In terms of the cost of a single component, IPM is indeed difficult to compete with the already standardized and mass-produced separated packaging elements.However, only considering the overall product design with a single material cost is

Semiconductor devices – Discrete devices – Part 9: Insulated-gate bipolar transistors(IGBTs) Dispositifs à semiconducteurs – Dispositifsdiscrets – Partie 9: Transistors bipolaires à grille isolée(IGBT) SEMICONDUCTOR DEVICES–DISCRETE DEVICES – Part 9: Insulated-gate bipolar transistors(IGBTs) FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and ele

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YZPST Power semiconductor assembly

The bidding project lasted for more than two months and overwhelmed many strong competitors. In the end, YZPST stood out and won the multi-million-dollar project. The reason why YZPST won is due to its many years of professionalism and dedication in the field of power capacitors and accessories. YZPST has won the trust of customers with professionalism, integrity, quality and cost performance. If you have a demand for power capacitors and related supporting products, please contact YZPST, we will definitely bring you the most professional service and the most cost-effective price.

The CTO of Electrotherm Visited our factories on January 2018. We showed him the production line of semiconductor and capacitors which gave him a tremendous impression. Picture1-3: Visit the production line of semiconductor device. Picture 4: Group photo with CTO of Electrotherm and YZPST Group.

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HK Trade Show 2019.10.10 The YZPST Group attended HK Trade Show on 10th October 2019, and had set up many good relationships there. Picture: Group photo with valuable clients during the Trade Show.

Visit us at Booth 5F-E29 at the Convention & Exhibition Centre 1 Expo Drive, Wan Chai ,HONG KONG! We are pleased to announce that we will be exhibiting the fair on October 13 TO 16. 2019 ElectronicAsia! Visit us at Booth 5F-E29 to see our new products: * High Voltage Power Thyristors,Diodes and Modules; Triacs,SCRs and High Voltage Diodes * Kinds of Fuses,Surge Protectors and Induction Heating Capaciotrs We look forward to see you and discuss how we can meet your sourcing needs at the Fair! www.yzpst.net www.yzpst.cc www.yzpst.com www.pst888.com

SCR-SILICON CONTROLLED RECTIFIER The SCR-Silicon Controlled Rectifier is a semiconductor device that is a member of a family of Thyristors. It is a 3-leaded device and when a small current enters the Gate, the thyristor turns on, and stays on. It only conducts current between Anode and Cathode in one direction and it is mainly only used in DC circuits. In AC circuit it will only conduct for a maximum of half the cycle. HOW TO TEST SCR: 1. An SCR can be tested with some multimeters but a minimum current Anode-to-Cathode is needed to keep the device turned on. Some multimeters do not provide this amount of current and the SCR Tester circuit above is the best way to test these devices. 2. Shorted SCRs can usually be detected with an ohmmeter check (SCRs usually fail shorted rather than open). 3. Measure the anode-to-cathode resistance in both the forward and reverse direction; a good SCR should measure near infinity in both directions. 4. Small and medium-size SCRs can also be gated ON with an ohmmeter (on a digital meter use the Diode Check Function). For

YZPST Power semiconductor devices brief Yangzhou Positioning Tech. Co., Ltd (YZPST) has her joint-venture factory which is specialized in kinds of power semiconductor devices. Such as thyristors (Phase Control Thyristors/Inverter thyristors with Stud & Capsule package), triacs, REVERSE CONDUCTING THYRISTORS(RCT), Asymmetric thyristors , series diodes(Standard and fast Recovery Diodes- with Stud & Capsule package), welding diodes ,bridge rectifier diodes, kinds of thyristor-thyristor modules, thyristor-diode modules, single diode and thyristor modules ,FRED Modules, solid state relays etc. with 20kpcs per month capacity. The company has the advanced professional production line: the high purification of workshop cleanliness up to 1000 and local up to 100 .in this line, there are many high precision diffusion furnaces, electron beam coating machines, full automatic cleaning equipments, synthesis test equipment and kind of aging inspection equipments etc. Our chief engineer comes from the famous company and has been devoted mind on kinds of power semiconductors for more than 26years . More than 30 engineers--- strong technology team to be sure that new products are continue to be developped and all products are controlled well in high class quality level .Some products have been made as per the global famous company`s spec. and exported all over the world. Our power devices are widely used for industries, public utilities and military projects. Such as transportation, marine/rail propulsion systems, frequency converter,wind power converters, electrochemical power supplies, soft starters, motor control, lighting control, power factor compensation, electric vehicles, UPS, Inverter, DC chopper drives, Pulse Power applications, High frequency, intermediate frequency welding machine, Locomotive tra

Yangzhou Positioning AEO Certificate

A dedication to precision and accuracy is vital in the manufacture of micro circuit elements. POSITIONING Tech utilizes state of the art production techniques to guarantee you the highest degree of performance and stability. We are an industry leader specializing in the research, production, and supply of semiconductors and discrete devices. Our diverse selection of electronic components includes diodes, transistors, silicon control rectifiers (SCRs) , triacs ,bridge rectifiers, voltage regulators, power thyristors, power modules and much more. Professional customization services are also available for the convenience of our valued clientele. Our power semiconductor devices are implemented in a wide range of applications including induction melting heating furnace, low and high voltage of power soft starters, motor excitation, industrial transmission, soft motor starter, high voltage DC transmission, high current power supply, chemical plating and smelting, locomotive traction and transmission, high voltage reactive power compensation , robot , electronic ballast, energy saving lamps, LED lightings and small home appliance. Our devices and related products have been utilized by eminent brands, they are quickly gaining popularity in the UK, Spain, and various European countries. Mature manufacturing techniques, state-of-the-art processing equipment, and a highly skilled workforce ensure the consistency of our product quality. Efficient designs minimize production costs, allowing us to launch competitively priced products onto the world market. Strategically located in Jiangsu province providing access to heavy rail and the world`s largest commercial shipping port ,we are able to serve our customers worldwide. Our adherence to the pri

Yangzhou Positioning has strong ties to local, regional and international clients and customers. We maintain partnerships the world over and frequently attend industry gatherings and develop summits. Yangzhou Positioning`s commitment to customer service is a key source value. Some of our employees on a trip to a recent trip to the Hong Kong World Electronics Fair. It was quite successful and a great chance to meet and with valued clients and develop new business.