Discussion and experiment of integrated audio power amplifier IC applied to BTL method BTL (Bridge-TIed-load) means bridge load. The two ends of the load are respectively connected to the output ends of the two amplifiers. The output of one of the amplifiers is th
Read moreAbstract: An overview of the current status of communication protocols and fieldbuses in intelligent buildings, and a detailed introduction to the new data communication protocol in this field, BACnet. Keywords: BACnet intelligent building automation object-oriented With the
Read moreAbstract: An overview of the current status of communication protocols and fieldbuses in intelligent buildings, and a detailed introduction to the new data communication protocol in this field, BACnet. Keywords: BACnet intelligent building automation object-oriented With the
Read moreAbstract: An optical wireless communication system based on Ethernet is introduced. The system uses the high-performance Ethernet transceiver chip IP113 as the core, with the necessary peripheral devices, combined with the modulation drive circuit and the receiving and demodul
Read moreWhat are the advantages of speaker Class D amplifiers? The use of Class D switching amplifier circuit can significantly improve the efficiency of the power amplifier. The class D amplifier converts the audio signal into a high-frequency pulse whose width changes with the ampl
Read moreO Introduction Software radio is a brand-new architecture based on broadband analog-to-digital / digital-to-analog conversion devices and high-speed digital signal processing chips, with software as the core (Software-Oriented). The development of software radio technology pr
Read moreHow Class B Amplifiers Work Figure 9.6 shows a comparison of the output and input waveforms of a class B amplifier on the time axis. The class B amplifier is biased at the cutoff point, so ICQ = 0 and VcsQ = VCE (cutoff). When the input signal makes the transistor into the on
Read moreIn speaker evaluation, especially 2.0 mid-range and high-end speaker evaluation, you will definitely talk about crossovers. For speakers, the crossover is very important. But it is often easy for everyone to make mistakes in the description of the frequency divider, what is th
Read moreAMBE-1000 is a mature duplex vocoder chip developed by American DVSI and produced by Lucent. The chip uses AMBE speech coding algorithm, the coding rate is 2.4 ~ 9.6kb / s. AMBE (Advanced MulTI-Band ExcitaTIon) algorithm is an improvement and expansion of MBE (MulTI-Band Excit
Read morebackground Even before the threat of terrorism caught the world ’s attention, many public and private agencies have begun to install video security systems in important infrastructure. Video security provides the visual images necessary to improve situational awareness
Read more[Text / high-tech LED reporter Luo Shenghua] With the rapid growth of indoor lighting market demand, many LED lighting export-oriented enterprises are gradually extending the market to the domestic market, and indoor lighting as its research and development and market development focus, Shenzhen Ju
Read more[Text / high-tech LED reporter Liu Pingping] With the gradual popularization of LED lighting, the demand for downstream LED lighting fixtures has increased significantly. As a manufacturer of aluminum parts for downstream manufacturers, this year's order volume has also increased significantly.
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