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Annaaa

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  1. A triode is a control element that is mainly used to control the magnitude of the current. Taking the common emitter connection as an example (signal from the base input, from the collector output, the emitter is grounded), when the base voltage UB has a slight change When the base current IB also has a small change, the collector current IC will have a large change under the control of the base current IB. The larger the base current IB, the larger the collector current IC. Conversely, the smaller the base current, the smaller the collector current, that is, the base current controls the change in collector current. However, the change in collector current is much larger than the change in the base current, which is the amplification of the triode. The ratio of the amount of change in IC to the amount of change in IB is called the amplification factor β of the triode (β = ΔIC / ΔIB, Δ represents the amount of change.), the amplification factor β of the triode is generally tens to hundreds of times. When the triode amplifies the signal, it must first enter the conduction state, that is, to establish a suitable static working point, also called the offset, otherwise the distortion will be amplified. A resistor is connected between the collector of the triode and the power supply to convert the current into a voltage amplification: when the base voltage UB increases, the IB becomes larger, the IC also becomes larger, and the voltage drop of the IC at the collector resistance RC is also increased. Large, so the collector voltage UC of the triode will decrease, and the higher the UB, the lower the UC, ΔUC=ΔUB. Is there any other role?
  2. I often hear these two seemingly high-tech terms "transistors" and "chips", but what is embarrassing is that they are not always clear about what they are, what role they play, and in which areas and equipment will they be used? Thank you very much. . I don't understand these terms in English articles. So I don't understand too much. I have to work hard. I want to know some basic introductions that are simple and easy to understand. Thank you.
  3. GJM0335C1HR20WB01E ALLICDATA ELECTRONICS LIMITED Our company is a professional distributor of electronic components. With many years of supporting experience, we enjoy a good reputation in the industry with authentic supply and reliable quality. We are committed to the spirit of “doing our best and do our best”. High quality products and excellent service. With high-quality product enterprise concept, with long-term standardized management to enhance the company's market competitiveness, with strong strength, quality service and corporate background based on the forefront of the industry, established a good corporate environment. Main: high-precision resistors and low resistance values of various integrated circuits (ICs), three-terminal regulators, FETs, power transistors, diodes, KAMAYA, VIKING, VISHAY, YAGEO, AVX, KEMET, IR, VISHAY, ROHM Resistance, thermistor, GJM0335C1HR20WB01E,varistor, capacitor, etc. NS, ST, VISHAY, FAIRCHILD's two triodes. Specification Description:CAP CER 0.2PF 50V C0G/NP0 0201 Detailed Description:0.2pF 50V Ceramic Capacitor C0G, NP0 0201 (0603 Metric) 0.024" L x 0.012" W (0.60mm x 0.30mm) Categories:Capacitors Ceramic Capacitors Series:GJM Packaging:Tape & Reel (TR) Part Status:Active Capacitance:0.2pF Tolerance:±0.05pF Voltage - Rated:50V Temperature Coefficient:C0G, NP0 Operating Temperature:-55°C ~ 125°C Features:High Q, Low Loss Ratings:- Applications:RF, Microwave, High Frequency Failure Rate:- Mounting Type:Surface Mount, MLCC Package / :0201 (0603 Metric) Size / Dimension:0.024" L x 0.012" W (0.60mm x 0.30mm) Height - Seated (Max):- Thickness (Max):0.013" (0.33mm) Lead Spacing:- Lead Style:- For more information, please go to Google Search Allicdata Semiconductor Limited.
  4. What is the general power range of FM radio transmitters?
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