Design Electronic Filter Circuits
Design Electronic Filter CircuitsSome higher-end amplifiers have very high filtering requirements for the power supply of the front and receiver, and no hum can be heard from the speakers. Here is an electronic filter with simple circuit and excellent effect, which can achieve the purpose of almost
Circuit Design of Transistor Electronic Filter
Circuit Design of Transistor Electronic FilterIn many electronic circuits, especially some small signal amplifying circuits, the power supply often adds a first-stage transistor electronic filter, and its circuit structure is shown in Figure J1. If the right side of the figure is an ordinary RC filt
The process of charging and discharging a capacitor
The process of charging and discharging a capacitor(1) The process of charging.The process of charging a capacitor (storing charge and energy) is called charging. Connect one pole plate of the capacitor to the positive pole of the power supply, and the other pole plate to the negative pole of the po
Detection method of fixed capacitor
Detection method of fixed capacitor.1. Detect small capacitance below 10pF: Because the capacitance of the fixed capacitor below 10pF is too small, it can only be checked qualitatively if there is leakage, internal short circuit or breakdown phenomenon by using a multimeter to measure it. When measu
Classification and application of capacitors
Classification and application of capacitors:Aluminum electrolytic capacitorsIt is a capacitor made of absorbent paper soaked in paste electrolyte sandwiched between two aluminum foils, and the thin oxide film is used as the dielectric. Because the oxide film has unidirectional conductivity, electro
Definition of electronic filter
Definition of electronic filterAnalyze the definition of filters in detail, the characteristics of filters, the working principle of filters, the classification of filters, the typical circuit schematic diagram of filters and the reference design of filtersAny device or system that can pass specific
Circuit Design of 2 Filters
Circuit Design of 2 Filters1. Active filter design of deadbeat SVPWMActive Power Filter (APF) is a power electronic device used to dynamically suppress harmonics. It can compensate multiple harmonic currents at the same time, can control in real time, automatically track and control nonlinear curren
SMD Triode Classification and Measurement
Identification, classification and measurement of SMD transistor pinsSymbol: "Q, VT"The triode has three electrodes, namely b, c, e, where c is the collector (input pole), b is the base (control pole), and e is the emitter (output pole)The physical picture of the triode:SMD triode, power t
The Structure and Application of Constant Current Transistor
The Structure and Application of Constant Current TransistorThe structure of the constant current transistorThe constant current triode is a three-terminal semiconductor constant current device developed after the constant current diode. It adds a control terminal, which can continuously adjust the
Triode Classification
Types of triodes and types of triodesa. According to the material, the types of triodes are: silicon tube, germanium tubeb. According to the structure, the types of transistors are: NPN, PNPc. According to the function, the types of triodes are: switch tube, power tube, Darlington tube, photosensiti
Application Design of Freewheeling Diode
Application Design of Freewheeling DiodeFreewheel/Flyback Diode (Freewheel/Flyback Diode) is also known as a flyback diode, in addition to other names, such as buffer diodes, suppression diodes, capture diodes or commutation diodes.When there is a sudden voltage spike across the inductive load when
Difference between limiting diode and Zener diode
Difference between limiting diode and Zener diodeA clipping diode, also known as a clamping diode or a limiting diode, is a circuit element used to limit the amplitude of a voltage waveform.Limiting diodes usually consist of two diodes connected in antiparallel. When the amplitude of the input signa