Is low voice rate really the core competitiveness of VoIP? It seems so. If the skin is gone, where will the hair be attached? A very interesting scene happened at the 2006 China VoIP Development Forum...
[i=s]This post was last edited by dcexpert on 2022-8-3 21:37[/i]The PCB and components from Lite-On have arrived, and the materials from Digi-Key have also arrived. We are ready to start soldering the...
Everyone is familiar with MCU programs, but not many people actually use or consider architecture. With the increasing number of program development, I think architecture is very necessary. I posted a...
Who first issues Get_Device_Descriptor, Get_Device_Configuration, and Set_Configuration? Where are the descriptors first stored during device enumeration?...
Working principle: The single-chip microcomputer controls the DC9V motor to work. The motor drives a mechanical mechanism to rotate after passing through the reduction box, squeezing out the hand sani...
As the whole equipment is becoming increasingly miniaturized and power-saving, low-dropout linear regulators (LDOs) with low power consumption are becoming the mainstream in the market for linear regu...[Details]
summary
Theoretically explains how to set up a PFC boost regulator using a current sensing transformer with the UCC3817 control IC.
1. Schematic
The schematic diagram is show...[Details]
A well-designed electronic load is not designed just for use in the lab; it should be carefully designed and built to test actual power systems. This is true for military portable systems, such as ...[Details]
1. Introduction
The UCC28051 reference design is a 100W offline AC/DC voltage converter with power factor correction (PFC). This power module design is intended to illustrate how to proper...[Details]
In a Class D audio power amplifier, the preamplifier is a relatively important module. It is located at the front of the entire topology and completes the processing of the input signal source,...[Details]
With the continuous emergence of new technologies and the increasing complexity of DSP real-time systems, there are more and more different types of external devices. Writing drivers for these exte...[Details]
According to In-Stat/MDR, the number of mobile phones with Bluetooth capabilities will reach at least 300 million by 2005. One of the clear evidences of the increasing adoption of Bluetooth is that...[Details]
Power semiconductors and reactive components (capacitors and inductors) are ubiquitous in today's electrical equipment. In normal operation, they can cause two undesirable side effects on the AC line ...[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]
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]
Preface
In the application of PLL, DLL and CDR circuits, people generally require the output clock signal to have a 50% duty cycle so that data can be sampled at both the rising and fallin...[Details]
With the continuous development of the national economy, the application of variable frequency speed regulation devices is becoming more and more extensive. How to break the monopoly of foreign produc...[Details]
As AC induction motors become the preferred choice for industrial motors, the need to reduce power consumption in all aspects of the design continues to emerge, so improving the efficiency of these...[Details]
PSoC is a programmable system-on-chip produced by Cypress Semiconductor with an 8-bit MCU core and a digital and analog mixed signal array. PSoC integrates three programmable capabilities into one....[Details]
Today, the value of electronic components in cars accounts for 15-20% of the total vehicle. In the future, as more safety electronic devices, fuel consumption and fuel emission control electronic s...[Details]
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