I want to detect the zero-crossing point (50KHz) of a sinusoidal signal with a peak-to-peak value of -1.5V to +1.5V. I am afraid of causing glitches and do not want to add a pulse shaping circuit. Can...
I would like to ask you, my PDA will immediately enter systemidle after pressing the power button to enter suspend mode and then waking up (power button or plugging USB) after that. At this time, if t...
Yesterday, a customer came to me to do an industrial control project. Because it involves a large LCD screen display, low-end microcontrollers are not suitable. He is an electrician and has been engag...
I receive data from the serial port but how do I store the data in the external memory? I am using at89c51 and the memory is HM62256. I don't know how to write a C program. Can anyone help me?...
Oh my god, 500W pixel phones are going to be phased out. I still use 30W pixel phones! What’s the point of having such high pixel phones? Can they be used as DC?...
A ventilator is an instrument that can replace or assist a person's respiratory function. It is suitable for artificial respiration of patients with respiratory failure or even respiratory arrest. I...[Details]
Medical and industrial applications often require isolation voltages of 2500Vac or higher for patient and equipment operator safety. The isolation barrier must not only transmit power to the sensin...[Details]
Pulse oximeters, non-invasive instruments used to monitor a patient's blood oxygen saturation, are benefiting from moving away from expensive discrete component solutions toward more integrated design...[Details]
Implantable Cardivoerter Defibrillators (ICDs) have been in common use for several years. ICDs apply a high voltage pulse between two electrodes connected to the heart, which detects cardiac fibrillat...[Details]
The small size and low cost of home appliance control boards mean that high-cost materials will not be used in the circuit to solve the electromagnetic interference problem. The interference of hom...[Details]
introduction
With the rapid development of my country's aviation industry, various new aircraft and control equipment have been successfully developed. Some previous measurement and control eq...[Details]
Lithium-ion batteries have a high energy-to-weight and energy-to-volume ratio, no memory effect, can be recharged many times, have a long service life, and are becoming increasingly cheaper. A good...[Details]
Multiple Input and Multiple Output (MIMO) technology is arguably the next most important development in wireless communications since the advent of digital communications. Many new wireless commun...[Details]
Abstract: This paper introduces the origin and new features of MP4, and introduces the core audio compression technology MPEG-2 AAC (Advanced Audio Coding) based on MP4. Finally, it briefly summari...[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]
Multiple Input and Multiple Output (MIMO) technology is arguably the next most important development in wireless communication technology since the advent of digital communications. Many new wir...[Details]
introduction
With the increasing popularity of Internet applications, the degree of information sharing is constantly improving. The digitization and networking of embedded devices has b...[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]
With the improvement of social automation, human-computer interaction capabilities urgently need a major change, and develop in a direction that is more convenient to use and more intuitive. Laser ...[Details]
AD8205 is a single-power high-performance differential amplifier launched by Analog Devices, Inc., USA. The typical single-power supply voltage is 5V, and its common-mode voltage input r...[Details]