Today, let Xiaobian take you to know the electronic tube in the electronic components, and take a look together. Electron tube is a kind of electronic device that produces electric current conduction in a gas-tight closed container and uses the effect of electric field on the electron flow in vacuum …
Summary, or should it be divided into many kinds, such as the year-end summary for superiors? Daily summary for internal use? To be more familiar with the business of their own people, or to the customer to see ~ of course, no matter which kind of summary, write these aspects …
Relay is usually used in automatic control circuit, it is actually a control circuit using small current to control the operation of large current "automatic switch", in the circuit plays an important role in automatic adjustment, safety protection, conversion circuit. Then relay as a control element, what functions does it …
The semiconductor diode mainly depends on the PN junction and work. The point contact type and Schottky type, which are inseparable from the PN junction, are also included in the range of general diodes. Crystal diodes can be divided into: ⒈ Dot contact diode Point contact diodes are formed by …
China Information and Communications Academy said that in the first half of 2022, driven by the weakening impact of the pandemic, the gradual recovery of logistics and consumption stimulus policies, the electronics manufacturing industry maintained a rapid growth trend, played an obvious role in driving the overall industry and became …
Inductance, also known as inductance coil, is an electromagnetic induction element wound by insulated wire (such as enameled wire, gauze wire, etc.), which is one of the components commonly used in electronic circuits. Inductor is a series of coaxial line turns made of enamel wire, gauze wire or plastic leather …
How to measure the quality of small capacitance? 1. Detect the small capacitor below 10pF. Because the capacity of the fixed capacitor below 10pF is too small, if the pointer type is measured with a multimeter, it can only be qualitatively checked whether there is leakage, internal short circuit or …
Working principle of common mode inductor Common mode inductance In a circuit, when a differential mode signal passes through a common mode inductor, the magnetic flux produced by the differential mode signal in the core is equal in magnitude and opposite in direction. The net flux is zero, so the …
Of 1. (1) The input stage is composed of a differential amplifier circuit to improve the input resistance, reduce the zero drift, and obtain a higher CMRR. (2) The intermediate amplifier stage is composed of multiple directly coupled voltage amplifiers to obtain higher voltage amplification. (3) The output stage is …
Hybrid equivalent circuit generally includes 1. Simple hybrid circuit, 2. Load hybrid circuit. The equivalent circuit can be calculated after the simple hybrid circuit can be directly connected in series and parallel. The circuit can be seen intuitively: R2 is connected in parallel with R3, then in series with R1, …
