Article archive
According to the principle of signal processing
17/04/2013 12:44
According to the principle of signal processing, a Gaussian low-pass filter inserted quite mathematically perform the convolution of the input signal with a Gaussian function, the input signal is converted into a no overshoot, fast rise time, minimum group delay nearly Gaussian response step...
VSWR detection and protection programs prototype circuit design and testing
15/04/2013 16:31
VSWR detection and protection programs prototype circuit design and testing, this option is adopted, HPA, VSWR> 15:1 VSWR> 4:1 the failure can still work.Transmission line voltages and currents are linked by a specific ratio, the ratio relationship is commonly referred to as the...
the setup process will also be shortened
10/04/2013 12:43
Transparent diagnostic
Now, during operation on the IO Link sensor set, and further improves the mechanical efficiency. This makes commissioning engineers to system operation to adjust to the optimal performance - this is a significant improvement. And direct access to the data through the bus,...
the CDQ engineering hoist inverter main terminal control
09/04/2013 16:03
The 100t the CDQ engineering hoist inverter main terminal control, and communications functions as read drive data use. so I chose to use a rectifier the feedbacks unit RGU with feedback capability to supply power to the common DC bus, The inverter device control terminal control mode, the...
How fast interrupt response time directly reflects the speed of a process
03/04/2013 12:36
3.1 test environment and method
How fast interrupt response time directly reflects the speed of a process: laptop battery in the user layer user process through the system call pulse data is written in the core layer of real-time driver data buffer queue, the next DDA interrupt request comes,...
The schematic of the power supply circuit shown in Figure 4
02/04/2013 11:25
these high-frequency components can easily through the power supply to enter the communication system. Further the transmission frequency of the system itself will be fed back through the power sensor to the communication system to cause interference. The 220μH the thus can be added in the...
the filter and the noise figure of the first downconverter
01/04/2013 15:11
(1) low noise amplifier
Match the best noise measure is closely related with the sensitivity of hair / common base circuit, in order to ensure a high-performance, low-power, usually this by choosing a high-performance, low-power transistors and input end of the antenna circuit and the output...
the default system icon cache are relatively large
28/03/2013 16:17
Usually the default system icon cache are relatively large, This is clearly a waste of feeling, so we want its value to make the appropriate adjustments, Note: Some computers may not be able to use the optimized master to modify, then you can be modified using the "Super Rabbit Magic...
signal line cross-connected and the connection point
26/03/2013 14:25
① signal lines is sequentially connected to the connector in accordance with the order of 1-9; ② signal line cross-connected and the connection point, above a row of the connector are connected respectively to the signal line, 1,3 , 5,7,9, following a row as 2,4,6,8.wait until the CD-ROM drive,...
To turn off the power saving features second to ensure power supply
22/03/2013 16:38
To turn off the power saving features second to ensure power supply, before the burning
To consume a lot of power in order to melt colorants in the process of burning, and burning is a relatively long process, so to ensure stable voltage and current. Ordinary CDR burner power is generally about...
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