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Based on TMS320F28044 digital power source design
Sunday, October 4th, 2009 at 19:11 | No commentsCategories: DSPShort Content: What is the digital power source? TI has carried on the definition from the function to the digital power source: The digital power source is the numerical control power source product, it can provide the management and the monitoring function, and extends to the entire return route's control. In view of the different domain's application, TI promoted many patterns to be possible to realize the digital power source product DSP processor, like TMS320F280x series, TMS320F2801x series, but also had may ... -
Studies - en.51rd.net based on the DSP control’s fuel cell passenger train with the DC/DC converter
Thursday, June 11th, 2009 at 07:48 | No commentsCategories: DSPShort Content: Abstract: Introduced briefly the research fuel cell passenger train with the digitized DC/DC converter's significance, has analyzed the DC/DC converter main circuit principle of work take the Boost converter as the example, has designed based on the TMS320LF2407A control system hardware circuit platform as well as control system's software, and gave the fuel cell passenger train to use 90 kW the Boost converter test result and the technical parameter. The digitized DC/DC converter has realized converter's soft switch and the ... -
38kHz/375W switching power supply transformer’s design
Sunday, April 19th, 2009 at 20:00 | No commentsCategories: Power SupplyTags: Converter, Switching power supplyShort Content: Abstract: Introduced in detail has intermediate tap's high frequency high efficiency transformer's design process and the computational method, as well as must pay attention question. The transformer which designs according to the switching power supply converter's performance index passes through in the actual electric circuit's test and the confirmation, the efficiency is high, the disturbance was small, has displayed the fine electrical specification.Key word: Switching power supply transformer; Magnetic core's choice; Magnetic induction intensity; Skin effect; Intermediate tap 0 introductions ... -
The motor control uses the low power voltage-stabilized source’s design
Wednesday, April 15th, 2009 at 10:59 | No commentsCategories: Power SupplyShort Content: Abstract: Not brushes the direct current machine control system's need in view of 170W, designed has instead stirred up-like the auxiliary switch voltage-stabilized source based on TOP224Y. This power source for controller's pulse-duration modulation chip, the logical synthesis chip as well as the actuation chip provides the multi-channel output service voltage, and has realized the isolation. Introduced with emphasis instead stirs up-like converter's key job principle, has analyzed three end off-line type PWM the integrated chip TOP224Y characteristic, based on ... -
Three-phase five level current mode converter and based on multi-carrier PWM research
Friday, April 3rd, 2009 at 10:09 | No commentsCategories: Power SupplyShort Content: Abstract: Has analyzed one kind of current mode 5 level invertor analysis situs, and introduced several kinds are suitable for the current mode converter modulation system, with PD, POD, APOD, carried the wave band frequency shift the PWM method to carry on the simulation analysis to the related analysis situs, and has compared they respective characteristic.Key word: Multi-level current mode converter; PWM control; Analysis situs; Simulation 0 introductions Existing is mainly aims at the voltage converter about the multi-level ... -
One kind uses in the space engineering the secondary power system design
Tuesday, March 17th, 2009 at 20:26 | No commentsCategories: Power SupplyShort Content: Introduction The dispersion-like secondary power systems are opposite in the centralism power supply say, the spacecraft system uses the dispersion power supply mostly the design structure, may from the sole 28V main line for the spacecraft various subsystems power supply, but does not need to carry on the redundant wiring for each kind of voltage penetration overall system. Along with the CMOS component's popularization, many print circuit wafers need specification and so on 5V and 12V or 24V ... -
The multi-channel outputs are stirring up-like converter coupling filter inductance design - 51RD the Chinese electronic net
Monday, February 9th, 2009 at 15:01 | No commentsCategories: Power SupplyShort Content: 1 introduction In recent years the high frequency switching power supply obtained the widespread application in the electronic products. Is slightly stirring up the type DC/DC converter by its output ripple slightly, to suit to switching valve's request low status merit in the low pressure, the big electric current, the power big situation. But is stirring up the converter to output the inductance the design to have requests high, specially in multi-channel output situations. This article analyzes the contrast to ... -
Single stage asymmetrical half bridge converter’s research
Tuesday, February 3rd, 2009 at 13:53 | No commentsCategories: Power SupplyTags: Asymmetrical half bridge, Converter, PFC, power factor adjustment, single stage, zero potential switchShort Content: Abstract: The single stage PFC structure is simple, the cost is low, introduced in detail one kind based on the asymmetrical half bridge's single stage asymmetrical half bridge converter, has analyzed its principle of work and the main parameter choice, and has realized PFC and the ZVS characteristic with experimental verification it.Key word: Power factor adjustment; Asymmetrical half bridge; Zero potential switch 0 introductions At present the quite mature PFC technology is two-pole PFC, the first level (usually is ... -
The soft switch synchronization rises voltage dropping converter’s research - 51RD the Chinese electronic net
Thursday, January 29th, 2009 at 08:53 | No commentsCategories: Power SupplyShort Content: Abstract: Studied one kind of soft switch synchronization to rise the voltage dropping converter. This liter voltage dropping converter's filter inductance designs quite slightly, causes in the inductance the electric current to be possible to be reverse, separately carries on the charging and discharging through the forward current and the reverse electrical current to two synchronized electric valve's junction capacitance, for soft switch creation nai. This method is suitable in compares the low pressure output, the high power density situation. ... -
Causes DC/DC the converter current limiting characteristic linearization the thermistor network
Sunday, January 11th, 2009 at 11:45 | No commentsCategories: Power SupplyTags: ConverterShort Content: Recently promoted each kind of integrated type voltage dropping The DC/DC converter has adopted to the external connection leans lowly the MOSFET synchronous rectifier's loss of voltage sampling method, does not need the high side electric current examination resistor. This kind of analysis situs saved examined resistor's cost and the print circuit wafer space, also raised the circuit efficiency suitably. But, the MOSFET breakover resistance and the temperature have the very big relevance, it has decided the current limiting size. What ...
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