The front end of the cable TV network and the line amplifier are grounded to extend the distance of the core power supply. The main function of the shell grounding of the front end of the cable TV net...
I encountered a very strange problem today when I was reading and writing a RAM block. The chip I used was Xilinx's Spartan-3ECode for writing to RAM
always@(posedge write_clk or negedge rst_n) if(!rs...
CLEVELAND , Ohio , March 19 , 2012 –Keithley Instruments, a world-class leader in advanced electrical test instruments and systems, today releasedthe 2657AHigh Power Digital SourceMeter.The 2657Aadds ...
According to the programming manual of F28035, its ADC peripheral has a ONESHOT Single Conversion Support function, which I don't quite understand: The ADC of 28035 is configured by SOC number, and on...
I made a non-standard keyboard extended by 8255 to communicate with PC. Now I don't understand how 8255 communicates with PC. How are so many ports on PC allocated to 8255? Thank you....
Emergency hand-held lamps powered by 6V maintenance-free batteries are widely used in rural areas. The charger used is a transformer step-down and single diode half-wave rectifier, and the charging...[Details]
1 Introduction
A wide variety of communication cables and control cables are widely used in various instruments and control equipment. Whether the cable is well-conducted and
whether
th...[Details]
1. Introduction to CIF Board
Fieldbus integration based on PC system
Whether it is a master or a slave, fieldbus has won unanimous praise in the field of PC-based automation. For more...[Details]
MediaTek (2454) announced the acquisition of F-MStar (3697) and attracted the attention of IC design industry. This morning, Gartner Semiconductor Industry Research Director Hong Cenwei analyzed ...[Details]
Introduction
X1226 has the functions of clock and calendar. The clock relies on hour, minute and second registers to track, and the calendar relies on date, week, month and year registers to tr...[Details]
In order to develop lighting LED technology, developed countries attach great importance to the research of LED testing methods and standards. For example, the National Institute of Standards and T...[Details]
Portable power applications are broad and varied. Products range from wireless sensor nodes with average power consumption of only a few microwatts to in-vehicle medical or data acquisition systems...[Details]
After the development of the single-chip microcomputer application system is completed, the system often freezes at the work site due to noise interference, electromagnetic interference, overvoltag...[Details]
1. Introduction
As we all know, the position of the receiver in the radio measurement and control equipment is between
the antenna
and the signal processing system. Its function is to se...[Details]
How to Test Semiconductor Diodes Cleverly
The diode test shown in the figure is simple and easy to perform, and the test is convenient and fast.
In the figure, T is a...[Details]
Thermal simulation is an important part of developing power products and providing product material guidelines.
The trend of optimizing module form factor is the development of end equipm...[Details]
One diode makes fluorescent lamps start quickly at low temperatures
Ordinary fluorescent lamps are difficult to start at voltages of 200-170V or in winter. If a diode is added to the flu...[Details]
In some important departments or warehouses, alarm devices are often installed to prevent outsiders from illegally entering. Figure 4-6-3(a) shows the system block diagram of an alarm device.
...[Details]
The automobile air conditioning system is a special device for adjusting the air environment in the car to meet the requirements of the passengers for riding comfort . The comfort of the passengers...[Details]
In order to prevent the battery from being overcharged, the charging endpoint needs to be controlled. When the battery is fully charged, there will be some special information available to determine w...[Details]
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