The chip inductor is an elec樂讀tromagnetic induction elemen些拍t wound with an insulated 新要wire. It is a commonly used inductive 對金component. The role of the chip induc呢冷tor: through the DC resistanc美校e AC is a simple statement, the AC 時短signal is isolated, filtered or combin和笑ed with capacitors, resistors站男, etc. to form a resonant circu問坐it. Tuning and frequency selective 睡腦inductance: the inductor and ca近黃pacitor in parallel can form LC Tuning訊刀 the circuit. Any current i老得n the circuit of the chip ind子村uctor generates a magnetic field t技討hat acts on the circui你子t.
When the current through t道去he chip inductor changes, the 都姐DC voltage potential generated in the c影草hip inductor will prevent the curre窗也nt from changing. When 秒雪the current through the i對的nductor increases, the self-ind師體uced electromotive force gen購廠erated by the inductor coil 湖土is opposite to the current directio山笑n, preventing the increase of個吧 the current, and co北老nverting a part of the 醫懂electric energy into a ma笑工gnetic field can be stored 兒草in the inductor; when the 店如current through the inductor i如你s reduced, The self-indu錯姐ced electromotive force is in窗影 the same direction as the cu長音rrent, preventing the curre小紅nt from decreasing and simultaneous司業ly releasing the stored議媽 energy to compensate for the d用黃ecrease in current. 微信Therefore, after the inductor 資唱filtering, not only the ripple of the l議東oad current and voltage is reduced, t習爸he waveform becomes smooth, and th鄉弟e conduction angle of the 亮知rectifier diode increases.
The role of the inductor 1: color 章很ring inductance has a blocking effect:爸這 the copper core in the color ri秒放ng inductor coil is alw黑店ays resistant to the current in the coi鐵光l. The color ring induct金呢ance has an obstructive effect on the 刀學alternating current used in t吃玩he circuit, and the size of th報黑e blocking effect is有外 called XL, and the unit is ohm. The麗那 relationship between熱就 the inductance L and the事謝 AC frequency f is XL=2πfL, a森器nd the color ring induc北音tance can be mainly 我話divided into a high frequency choke coi暗習l and a low frequency choke coil.
The role of the inductor 2: colo要他r ring inductance has tu醫農ning and frequency selection自水: color ring inductance and ele日綠ctrolytic capacitor in par雪師allel can form an LC tuning circuit. 低醫When the color-ring inductance resonat跳跳es, the inductive reactance a拿河nd capacitive reactance o不業f the circuit are reversed. T很鐘hat is, the natural o用知scillation frequency f0 of the circuit 廠書is equal to the frequency f of the 謝拿non-AC signal, and the inductive rea廠學ctance and capacitive 費資reactance of the loop are also e靜草qual. The use is generally not v師兒ery high, and the color ring inducta在船nce used in the circuit is gene銀金rally relatively stable.
The role of the inductor 3: The maximu行說m color-ring inductance mainly uses th鐵討e filtering signal, filtering 體拿noise, stabilizing current 線資and suppressing elect機就romagnetic interferen術音ce. The basic function of t機畫he color-ring inductor is chargin說新g and discharging, but many circuit p時小henomena extended by thi制影s basic charging and dischar多火ging effect make the col文水or-ring inductance have variou知地s uses. Nowadays, color-ring inducto她黑rs have been used by c土好ustomers, and the role of small 外業inductors is not overlo愛樂oked.