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The power source manages some new plan
Wednesday, May 6th, 2009 at 21:07 | No commentsCategories: Power SupplyShort Content: Along with the mobile phone, the notebook, the digital camera, absorb the videocorder, the MP3 broadcast machine and so on portable unit rapidly expand, set a higher request to the power source and the power source management. The electrical power system faces: · the system increases day by day complexity; · needs to manage more voltages, the low voltage as well as the wider input voltage scope; · the system space, the function are getting smaller getting more and more, ... -
Uses UCC28051 100W general line input PFC pressure-rise switch - 51RD the Chinese electronic net
Tuesday, May 5th, 2009 at 00:07 | No commentsCategories: Power SupplyShort Content: 1 introduction< ?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /> The UCC28051 reference design is one section has the power factor to adjust (PFC) function 100 W the off-line AC-DC voltage switch. This power source module design is for the purpose of showing how in a off-line power factor does adjust in the pre-regulator to dispose UCC28051 reasonably. According to the design, this module may work in the 85V~265V general input voltage scope, has 400V the DC constant voltage ... -
Realizes the system energy conservation with the DVS function
Sunday, April 26th, 2009 at 22:00 | No commentsCategories: Power SupplyShort Content: Mobile equipment's development may say is a ten thousand li in a day, each kind of function unceasingly conformity in which. The list take the intelligent handset as an example, its function definitely may compare favorably with the notebook. But the complex functional need function formidable processor, in the intelligent handset integrated the simulation baseband, the digital baseband, the image processor and CPU and so on many processors. But regarding these processors, each processor is not in any time is ... -
High speed figure disconnector product ISO72x series application report
Saturday, April 18th, 2009 at 14:00 | No commentsCategories: Power SupplyShort Content: Outline: This application report has outlined the high speed figure electric circuit neutron isolation necessity, the implementation as well as the characteristic, discussed has carried on the light, magnetism in an insulating layer (inductance) and the electricity (electric capacity) the signaling merit and the shortcoming, and the capacitive coupling technology which used for the ISO72x series digit disconnector in has made the special key elaboration. 1 introduction The isolation is separates a part with the other part of ... -
Improves the PWM power source controller low load movement the buffer amplifier and LED - en.51rd.net
Friday, January 2nd, 2009 at 04:45 | No commentsCategories: Power SupplyTags: TIShort Content: Texas Instruments company's UCC3895 is establishes a highly effective pulse-duration modulation, the switch pattern power source's good foundation, it suits in the electric current pattern or the voltage mode control. This design uses two groups of supplementary outputs (A to D) to actuate an entire bridge power transformer, with is opposite outputs C and the D control power in A and the B phase-shift. The manufacturer data book has this aspect detailed explanation (reference 1). But, when uses in the ... -
8 main line transceiver SN74LVCC3245 principle and application
Tuesday, December 30th, 2008 at 06:45 | No commentsCategories: Power SupplyTags: TIShort Content: In the new generation electronic products design and the application, the low power loss and the high velocity already became the digital circuit design the trend of development. But the audiences know again, the chip power loss and the frequency are proportional the relations, these two looked that resembles the irreconcilable contradiction, has caused each kind of low pressure digit component's appearance finally. If TI Corporation's TMS320F2812 has used core 1.8V and the peripheral circuit by the 3.3V power supply ... -
Based on TMS320VC5510 pronunciation hardware platform design
Saturday, October 18th, 2008 at 11:58 | No commentsCategories: Communication NetworksShort Content: High grade, the low gear rate speech coding algorithm the status is getting more and more important in the modern communication system, is widely applied in such as IP telephone, pronunciation mailbox, domains and so on military wireless communication. In some special application domain, the channel bandwidth is very specially narrow moreover the error rate to be high, must realize the pronunciation communication on this kind of channel, the low speed and the low speed speech compression coding technology ... -
TI digital light end machine plan
Thursday, October 16th, 2008 at 06:14 | No commentsCategories: Communication NetworksTags: optical fiber, TIShort Content: Along with communication's swift development, the fiber optic communications technology has become the correspondence the important means. The optical fiber transmission system has the capacity to be big, transmitting range far two big superiority. The optical fiber theory capacity may reach 20000GHz, the non-relay transmission distance may amount to 50-80 kilometers. The light end machine is one kind of equipment which in the fiber optic communications uses, materially is an electrical signal to the light signal, the light signal ... -
Seaway uses TI DSP the controller platform the innovation riding instead of walking tool
Saturday, October 4th, 2008 at 00:28 | No commentsCategories: DSPShort Content: Seaway uses TI C2000 the DSP controller platform, the exquisite volume as well as the integrated high performance peripheral device's C2000 achievement this kind of electric drive, had the self-balanced ability revolutionary nature possibly to become personally with the transportation vehicle. The Segway operation principle is mainly the establishment, in one kind is called "dynamic stable" (Dynamic Stabilization) in basic principle, is also vehicles' self-balancing ability. (Solid-State Gyroscopes) judges the posture condition which by the built-in precise solid ... -
Based on Matlab TMS320LF2407 procedure fast design
Monday, August 25th, 2008 at 14:23 | No commentsCategories: DSPShort Content: The abstract under the Matlab/Simulink environment, designs the DSP procedure with the presente in figures and diagrams way, but reduced program design. Using Embedded Targetfor T1 C2000 the DSP tool bag, designs DSP the ADC conversion routine; Using the Simulink digital signal processing tool bag, designs the FIR filter clamour to carry on filter processing; Gives when the revision production C language procedure how to enable DSP to move correctly. The design procedure moves correctly on the TM$320LF2407A processor.Key word ...
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