I used to make an amplifier circuit with INA128 (instrument amplifier) and OP07, which was mainly used to amplify small signals behind the pressure sensor. Today, I connected an electret to the input ...
1. Continuous proportional regulation The symbol of the proportional is P. All instruments with proportional regulation should have a suitable (such as 5%) proportional band. The meaning of the propor...
As a natural human-machine interface, voice can make the in-vehicle navigation system safer and more user-friendly. Through the functional comparison of domestic and foreign in-vehicle navigation s...[Details]
UHF and HF are both general technology categories, but each category has independent supporting protocols. HF is more consistent in the 13.56MHz frequency band, although there are many internation...[Details]
In the test of the electronic ignition module, in order to simulate the real working condition of the electronic ignition system, the electronic ignition module is often placed in an environment hi...[Details]
Infrared remote control is widely used in household appliances, security, industrial control and people's daily life, especially household appliances and security.
When there are many TVs, VCD...[Details]
Signal sources have developed to a very wide range today. We can classify them according to the frequency range: ultra-low frequency (0.1m～1kHz), audio (20Hz～20kHz), video (20kHz～10MHz), radio fre...[Details]
In view of the problems in the actual FPGA development process, such as difficulty in locating faults, long compilation time after repeated code modification, and inability to confirm fault solutio...[Details]
With the development of supermarket industry and the strengthening of loss prevention awareness, the use of electronic anti-theft equipment (EAS) has become very popular in various parts of the countr...[Details]
Some application designs have higher requirements on the speed at which the system's switching power supply can provide voltage output. Figure
1
shows
the
bootstrap
...[Details]
1 Basic structure and function of implantable cardioverter defibrillator (ICD)
ICD consists of two parts: the pulse generator and the electrode lead. The main components of the pulse generator...[Details]
Most
embedded
systems are powered from a 48V backplane. This voltage is typically stepped down to a lower intermediate bus voltage of 24V, 12V, or 5V to power the circuit board racks withi...[Details]
Lifting wavelet transform not only has the advantages of traditional wavelet multi-resolution, but also simplifies the operation and is easy to implement in hardware. Therefore, it is widely used in d...[Details]
Abstract: This paper introduces the controller, interface, display principle and driving method of the handheld computer LCD display based on the SA1110 microprocessor. Combined with the HPC projec...[Details]
Although the human eye is very good at distinguishing colors, different people can describe the same color differently, which means that verbal descriptions are not enough in applications that requ...[Details]
Abstract: CC2420 is a 2.4GHz RF chip introduced by Chipcon that complies with the IEEE 802.15.4 specification. It is used to develop ZigBee devices and products for PAN networks such as industrial ...[Details]
LED dot matrix blocks have the advantages of high brightness, uniform light emission, good reliability, and easy assembly, and can form display screens of various sizes. At present, LED display scr...[Details]
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