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Currently, a variety of PWM control methods have been used in AC variable frequency speed regulation systems, among which space vector PWM (SVPWM) has been widely used in motor speed regulation due...[Details]
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The composition of the vortex flowmeter is shown in Figure 1. When the fluid flowing along the axial direction enters the inlet of the flow sensor, the vortex generator blades force the fluid to r...[Details]
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The photovoltaic industry has gone from being the most developed and the best investment to being in crisis. The domestic market demand is slow, and a large amount of photovoltaic production capacity...[Details]
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introduction To continually reduce size, weight, power, and cost while improving or maintaining performance, it is necessary for RF system designers to evaluate every component in the signal chain ...[Details]
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High-frequency head: commonly known as tuner, it is the first part of the public channel of high-frequency signal of television. The high-frequency heads used in television sets are generally divided ...[Details]
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There seems to be progress in the dumping dispute between China and Europe over solar products. The latest news shows that a spokesman for the German Ministry of Economy said on Monday that China wil...[Details]
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With the advent of the LTE multi-band and multi-mode smartphone era, the new generation of smartphones requires the addition of LTE mode and corresponding operating frequency bands based on 2G and 3G...[Details]
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1. Three working states of power amplifier circuit 1. Class A working state The conduction angle is 360o, ICQ is large, tube consumption ...[Details]
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This circuit (see the figure below) is a frequency-adjustable phase-shift sine wave generator circuit. Its frequency stability is 0.002% through actual testing. The circuit is cost-effective and uses...[Details]
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1 Commonly used multi-base digital modulation techniques and applications
1.1 QPSK (Quaternary Phase Shift Keying) Technology and Application
(1) QPSK technology
In phase shift keying (PS...[Details]
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A process that can significantly reduce
the power consumption of
active RFID
handsets is proposed. The microprocessor LPC2142 is used as the core, combined with peripheral devices such as...[Details]
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Abstract : Modern electronic technology is developing at an increasingly rapid pace, and its basic core technology is embedded computer systems. As one of the embedded systems, single-chip microcompu...[Details]
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1. Comparison of the three mainstream RF solutions and their advantages and disadvantages
1): Bluetooth solution (IEEE802.15)
The Bluetooth protocol allows data to be transferred between ...[Details]
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How to judge the quality of degaussing resistor for color TV
The degaussing resistor in color TV is a nonlinear resistor and a positive temperature coefficient resistor.
...[Details]
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Camera dedicated inductor
Characteristics and applications of inductors specifically designed for cameras
Product Labeling
...[Details]
DSP and ARM Processors
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