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Alexander Antonyuk, Alexander Lysenko Open letter to the editorial office of the magazine "CHIP NEWS Ukraine"
16
Power electronics
Yuri Koval IGBT transistors IXYS
The article deals with promising IGBT transistors of IXYS corporation in modular and discrete designs, which are used in electric drives, power supplies, power generators and other equipment.
18
Power electronics
Victor Oleinik Application of powerful field-effect transistors from STMicroelectronics in modern electric drives and power systems
This article presents the characteristics of MOSFET (field effect) transistors from such a leading manufacturer as STMicroelectronics. First, I would like to acquaint readers with an overview of the new families of MOSFET transistors from STMicroelectronics, no doubt, if not the leading, then one of the firms with the most advanced developments and technologies in the field of power electronics. We obtain most of the mechanical energy in industry, everyday life and other areas by converting electrical energy using an electric drive. The quality of the electric drive largely determines both the possibility of implementing effective technologies and the energy consumption in various fields of activity. One of the most important issues that the developer must solve is the choice of the element base of the energy converter. Field effect transistors from STMicroelectronics are the optimal solution for these tasks.
22
Power electronics
Vitaly Shevchenko PWM controllers from International Rectifier
Over the past decade, we have seen an accelerated pace of development in electronic devices. Along with it, the requirements for the power supply device are also growing. Linear voltage regulators have low efficiency and cannot always meet the requirements of the device. Circuits with a synchronous rectifier are widespread today. The range of ICs produced by various manufacturers is very large. This article will discuss the features of using a synchronous switch in a synchronous rectifier and will consider several types of PWM controllers from International Rectifier.
25
Power electronics
Artem Kozlov FAN7710 - easy operation with a compact fluorescent lamp
Quite often, the profit from replacing incandescent lamps with fluorescent lamps is 30% higher than the money spent on it. The use of fluorescent lamps provides full natural light with maximum energy savings. Energy saving bulbs last 5 to 13 times longer than traditional incandescent bulbs and are inconvenient and cost effective.
30
Power electronics
Lucio Di Jacio Power electronics in fluorescent lamps
Today, more and more often, the magnetic ballast load (choke) in fluorescent lamps is being replaced by electronic circuits to increase overall efficiency and increase productivity while reducing weight and volume. The main reason for replacing 50-, 60-Hz transformers or magnetic chokes is to save energy. Depending on the application, the return on investment for replacing the choke with an electronic equivalent can be from a year or more, since the electronic circuit is much more expensive. At the same time, electronic ballast provides higher performance and comfort with less weight and size, which is a great advantage in professional applications such as office and building lighting.
32
Power electronics
Leonid Pavlov Integrated Circuits for PWM Controller with Voltage and Current Feedback
The development of power supplies and DC-DC converters is carried out both on the basis of specialized integrated circuits of the LM2596 class, and on the basis of exotic solutions using single-chip microcomputers. But the presence of two feedback inputs in the family of PWM controllers developed by f. Unitrode is still responsible for their popularity. These microcircuits are reproduced by a number of companies, including world famous ones.
36
Power electronics
Sergey Petrov Circuitry of industrial welding inverters
On the examples of industrial products of well-known companies, an overview of the circuitry of the power section of the inverter-type welding current sources is made.
40
Power electronics
Artem Kozlov PolyZen - protection in a complex: simple and reliable
PolyZen (short for PolySwitch+Zener) provides voltage protection similar to a zener diode, but can handle higher overloads. Schematically, this product is a thermistor (PTC) and a zener diode chain.
46
Power supplies
Vladlen Kirilenko Integral voltage stabilizers manufactured by NPO Integral
The article systematizes the products of NPO Integral, proposed by the association for use in secondary power supplies (IVEP) for general industrial equipment and special-purpose equipment. This article provides an overview of the voltage stabilizer ICs produced by the association.
48
Power supplies
Microcontrollers and control of switching power supplies. Implementation of a fully digital control loop
Power supplies, which are an integral part of almost any electronic system, have now formed a large-scale, full-fledged market - a market that is growing at a tremendous rate. Over the years, power supplies have consisted of complex combinations of analog and power semiconductor components, and their complexity has increased more recently as the share of switching power supplies has increased and replaced conventional linear designs. Thus, according to current estimates, sales of switching power supplies bring more than half of all revenue to power supply manufacturers worldwide.
A switching power supply has many advantages over a linear power supply, such as significantly higher efficiency, wider operating range, lower cost and smaller dimensions, especially in the case of high wattage systems. However, the many advantages of switching power supplies have now come to be regarded as standard requirements for the operation of power systems. Designers are increasingly focusing on the implementation of digital control loops, which would further increase efficiency and productivity, reduce the number of components, improve manufacturability and reliability, and expand functionality.
54
Power supplies
Evgeny Rakhno CMOS LDO stabilizers MPC170x series from Microchip
Any electronic device, no matter how well it is designed and manufactured, has one significant drawback - it does not work without a power source, and the power source, in turn, must be stabilized. In other words, a voltage regulator must be present in every device.
59
Power supplies
Evgeny Zayarny Application of Vicor pulse converters in electronic equipment
The article describes the main directions of Vicor products. These products are configurable and will allow you to create secondary power supplies with almost any parameters.
62
Power supplies
Sergey Pichugin UCC28600 quasi-resonant controller to improve the efficiency of power supplies
This article provides a description of the principle of operation and examples of using the new UCC28600 quasi-resonant controller from Texas Instruments, which supports the ability to work in the energy-saving Greenmode mode, which meets the requirements of the most stringent environmental standards.
66
Power supplies
Bonnie C. Baker Portable Battery Test
Authentication of portable device batteries has become an imperative. There have been a number of reports of batteries overheating to the point of exploding in popular devices such as computers and cell phones. For example, in June 2004, a major cell phone supplier recalled 50,000 devices due to counterfeit batteries. This came after 18 reports of personal injury or property damage from battery explosions appeared. In October 2004, one of the main suppliers of cell phones recalled 1,000,000 devices due to the fact that they were equipped with counterfeit batteries. These are just two examples of overheating related unsafe non-certified batteries. The problem has received increased attention only because batteries explode and in some cases cause personal injury.
70
Power supplies
Galina Mestechkina RP15_SA/SAW series ultra-miniature DC/DC converters with ultra-wide input voltage range
The article presents the main parameters of subminiature DC/DC converters of the RP15_SA/SAW series, which ensure operation in an ultra-wide range of input voltages.
73
Measuring technology
Sergey Pedorenko Rohde&Schwarz microwave spectrum analyzer up to 18 GHz - ideal for mobile use
The handheld R&S FSL18 from Rohde&Schwarz has expanded its spectrum analysis product line in response to the growing demand for compact devices for applications such as the installation and maintenance of WiMAX networks. The combination of wide frequency range and widest I/Q demodulation bandwidth (28 MHz) is truly unique for an entry-level device.
76
EC Distribution
Ivan Shostak EC for the military-industrial complex in a geopolitical context. Micronetics and Arcotronics products
After the collapse of the USSR, Ukraine inherited a lot of scattered enterprises of the military-industrial complex, which by themselves could not form an integral technological complex, since the enterprises ¬ contributors turned out to be in other countries. For many enterprises, this became a direct or indirect reason for their liquidation.
79
EC Distribution
Dmytro Pulenko The company "Mikrodis Electronics" is a leading distributor of electronics of a wide profile
For example, 2007 to the rock in Odessa bulo vidkrito TOV Mikrodis Elektroniks. The company is a member of the European holding company Mikrodis Holding AG (Basel, Switzerland), as a leading distributor of electronics for a wide profile, a provider of services in the field of logistics and a reliable partner for the post.
82
FPGA and BMK
Valery Zotov Practical course of end-to-end design of digital devices based on FPGAs from Xilinx. Part 10
In the tenth part of the course, the main attention is paid to the study of the content and implementation of the synthesis stage of the device being developed. Information on the purpose and possible values of the parameters of the synthesis process performed using XST CAD tools of the Xilinx ISE series for the subsequent implementation of the designed device based on FPGA with CPLD architecture is presented. The process of performing the stage of synthesis of the device under development is considered. The description of the structure of the report on the implementation of the synthesis stage is given.
84
Electromechanical components
Maxim Yumin A new level of contact
Discon introduces Anderson Power Products connectors that allow for virtually lossless transmission of high current currents. To date, this is the most interesting mechanism for design solutions in the field of joining.
92
Surface mounting
Nikolay Khatsyur Automate component placement and final assembly
Automation in electronics manufacturing began in 1961 with the invention of a radial and axial component fitter for PCB holes. Over the years, most products, especially consumer electronics, have switched to surface mounting, but the installation of components in holes has not yet disappeared from our lives and the equipment for their installation is being produced and actively used in production. The automation of the final assembly will be relevant for a long time.
96
Engineering practice
PCB placement techniques to protect audio amplifiers from RFI interference
Methods for placing elements on a printed circuit board of an audio frequency amplifier IC are considered, which allow optimizing the characteristics of the amplifier's immunity to radio frequency interference. The analysis is carried out on the example of using the Maxim MAX9750 IC.
100
Engineering practice
David Marsh Semiconductor fuses in automotive circuits
Transients are unavoidable in automobiles and can easily damage sensitive semiconductors. However, the scope of application of silicon semiconductors in the car is growing steadily and now they can be used to solve problems that were traditionally solved on the basis of passive components.
104
HF AND MICROWAVE COMPONENTS
Vladimir Bagutsky Power electronics from Aethercomm: power amplifiers
Aethercomm develops and manufactures power amplifiers that are actively used in various military and civilian equipment, such as ground-based radars and radars located directly on board aircraft, various communication equipment, and navigation systems.
110
HF AND MICROWAVE COMPONENTS
Vladimir Bagutsky Power electronics from Aethercomm: power amplifiers
Aethercomm develops and manufactures power amplifiers that are actively used in various military and civilian equipment, such as ground-based radars and radars located directly on board aircraft, various communication equipment, and navigation systems.
110
CAD
Yuri Potapov Parasitic Parameter Extraction Technology for Interconnection Simulation
It is no secret that very often telecommunications equipment designers are faced with a situation when gigahertz analog or gigabit digital cards, developed using traditional design tools, including signal integrity analysis (SI) tools, demonstrated the specified characteristics during the simulation process, and after production turned out to be completely inoperable. ... The answer is simple: at frequencies above 1 GHz, the effects of mutual couplings between conductors are significantly manifested, which does not allow them to be ignored in the design process. Due to the high degree of integration, as well as high operating frequencies, simple RLC equivalent circuits can no longer meet the requirements for modeling complex interconnections, and electrodynamic modeling of the structure is required. If this is not taken into account, developers will continue to spend time and money on numerous design iterations and debugging of prototypes, which will lead to an increase in the final price of the product and, as a result, loss of market position.
The article describes a new computational technology that allows you to automate the process of analyzing parasitic connections in the topologies of high-frequency crystals and boards.
112
Exhibitions
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118
Business card CHIP NEWS Ukraine
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130
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