Article archive
Different depending on the application and the target cost
14/05/2013 12:43
Different depending on the application and the target cost, there are many available shielding method. Including the standard braided shield spiral shield, aluminum / polyester film, metal foil, flat wire, laptop battery aluminum / mylar braided shield or spiral shield combination, foil and...
low-capacity network construction
13/05/2013 12:03
10, cover,CDMA20001X 800M band, compared to the 900M GSM and GPRS can provide better spatial coverage and depth of coverage, so that when the initial network construction can be achieved wide coverage, low-capacity network construction, to be the number of users developed to a certain size...
HSDPA and R99/R4 the the hybrid carrier frequency network
10/05/2013 12:05
HSDPA and R99/R4 the the hybrid carrier frequency network, HSDPA and R99/R4 business share the same carrier frequency power and code resources.The initial network construction general can be considered reserved the 5 yards words, about 30% of the power resources for HSDPA service. According to...
the downlink rate the highest value of 14.4Mbps
08/05/2013 11:23
In order to overcome the above WCDMA Release 99 restrictions on the data transfer, 3GPP Release 5 specifications proposed HSDPA (High Speed ??Downlink Packet Access), can not only overcome the limitations mentioned above, and can greatly enhance the downlink data transfer rate. According to the...
Quartus II Waveform Editor
07/05/2013 12:16
(4) design and simulation.Quartus II software allows the designer to use the vector file (vec) text-based as the emulator incentive, can also be generated in the Quartus II software waveform editor vector waveform file (vWF) as the incentive of the emulator....
With proper board and connector layout and balancing of the transmission media
06/05/2013 10:25
Newer-generation transceivers typically don’t employ externally controllable slew rate control, but are rather designed to better match the CANH and CANL output currents before, during, and after transitions between dominant and recessive states and back. With proper board and connector layout...
the PFC current loop and the dc-dc voltage loop
03/05/2013 15:31
So now let’s use this system to evaluate the four transfer gains defined in Fig. 4. The G/(1+GH) trace has the lowest gain. Bode Analysis Design Tool.An in-circuit loop analysis was developed based on a TMS320F2808 and a PC-based design tool for a digital telecom rectifier reference design. The...
the side of the device is also connected to the SST
26/04/2013 11:46
As for the side of the device is also connected to the SST, this system can also detect the temperature of the equipment, and the equipment end of the fan control, for example, Intel motherboard, standard power supply connector-5V power supply pin let the SST even on the power supply, because...
laptop battery provides 32-bit embedded processor-based tax control program
25/04/2013 11:13
laptop battery provides 32-bit embedded processor-based tax control program. Fiscal cash registers HHTech solution is earlier programs to meet the national standard USB interface standard technology in the domestic leading position. In addition, all aspects of the prototype design, computer...
To modify the design is also very difficult to achieve
18/04/2013 17:29
To modify the design is also very difficult to achieve. For example, if you later find that you need a higher order filters, it is necessary to change the hardware to achieve new design. Digital filter software, laptop battery does not have this problem, and to provide a flexible platform that...
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