Ionnsaich an ìre inductance de inductance modh cumanta . Lean an neach-dèanamh inductance (air a thoirt seachad gu proifeasanta: axial steach, Mapa- RADIAL steach) gus ionnsachadh:
Sruth modh eadar-dhealaichte: Paidhir chomharran den aon mheud agus taobh eile air paidhir de loidhnichean comharran eadar-dhealaichte, mar as trice air an cleachdadh ann an cuairt
Is e an sruth, airson loidhne chomharran, an sruth a tha a ’sruthadh eadar an loidhne chomharran agus an talamh comharra.
Sruth modh cumanta: Paidhir chomharran (no fuaimean) den aon mheud is stiùireadh air paidhir de loidhnichean comharra diofaraichte. Anns a ’chuairt,
San fharsaingeachd, tha fuaim talmhainn air a ghluasad le sruth modh cumanta, agus mar sin canar fuaim modh cumanta ris cuideachd.
Tha iomadh dòigh ann air fuaim modh cumanta a chumail fodha. A bharrachd air a bhith a ’lughdachadh fuaim modh cumanta aig an stòr, bidh inductance modh cumanta mar as trice air a chleachdadh gus fuaim modh cumanta a shìoladh, is e sin, gus fuaim modh cumanta a bhacadh a-mach às a’ chuairt targaid. Is e sin, modh cumanta a thaghas ann an sreath ann an a circuit. Is e an t-amas casg a chuir air cuairteachadh modh coitcheann gus am bi an t-sruth modh cumanta air a chaitheamh agus air a bhacadh (air a nochdadh) leis a ’choke, agus mar sin a’ cuir às do fhuaim modh cumanta anns a ’chuairt.
Am prionnsapal de choke no inductor modh cumanta
Ma thèid paidhir coil a leòn anns an aon taobh air fàinne magnetach de chuid de stuth magnetach, thèid flux magnetach a chruthachadh anns a ’choil mar thoradh air inntrigeadh electromagnetic nuair a bhios sruth alternating a’ dol tro na comharran modh eadar-dhealaichte coil.For, an flux magnetach a thèid a chruthachadh le tha an fhàinne magnetach an aon rud ann am meud agus mu choinneamh a chèile, agus bidh an dithis a ’cuir dheth a chèile, agus mar sin tha am bacadh modh eadar-dhealaichte a ghineadh leis an fhàinne magnetach glè bheag. Airson comharran modh cumanta, tha an flux magnetach a chaidh a chruthachadh den aon mheud agus stiùireadh, agus tha an dithis air an toirt thairis air a chèile gus bacadh mòr-mhodh coitcheann den fhàinne magnetach a ghineadh. Tha an caractar seo a ’dèanamh gu bheil an inductance modh cumanta a’ toirt nas lugha de bhuaidh air a ’chomharra modh eadar-dhealaichte agus tha coileanadh sìolaidh nas fheàrr aige ri fuaim modh cumanta.
(1) Nuair a bhios sruth a ’mhodh eadar-dhealaichte a’ dol tron choil modh coitcheann, tha loidhne an raoin magnetach a ’dol an taobh eile agus tha an raon magnetach brosnaichte air a lagachadh. Chìthear bho stiùireadh loidhne an raoin magnetach anns an fhigear gu h-ìosal gu bheil an t-saighead loidhne chruaidh a ’riochdachadh stiùir an t-sruth agus gu bheil an loidhne briste a’ riochdachadh stiùireadh an raoin magnetach
(2) Bidh an sruth modh cumanta a ’dol tron choil modh coitcheann, agus tha an raon magnetach air a neartachadh air sgàth an aon taobh de loidhne an raoin magnetach. Chìthear bho stiùireadh loidhne an raoin magnetach anns an fhigear gu h-ìosal gu bheil an t-saighead loidhne chruaidh a ’riochdachadh stiùir an t-sruth agus gu bheil an loidhne briste a’ riochdachadh stiùireadh an raoin magnetach
Inductance modh cumanta de choil no ris an canar co-èifeachd fèin-inntrigidh, tha fios againn gu bheil an inductance a ’toirt a-mach comas an raon magnetach, am modh cumanta no coil inductor modh cumanta, nuair a bhios an sruth modh cumanta a’ sruthadh tro choil, air sgàth loidhnichean an raoin magnetach san aon taobh, gun a bhith a ’toirt aire fo chumha an inductance aoidionachd, flux magnetach, is e am prionnsapal aige inductance chèile, fo loidhnichean achaidh magnetach coil coil tro na loidhnichean achaidh magnetach coil gorm, dearg is gorm cuideachd tro na coil ruadh, inntrigeadh a chèile.
From the point of view of inductance, inductance is multiplied, magnetic chain represents the total magnetic flux, the common-mode inductor, when magnetic flux is doubled, circle number has not changed, the current didn't also did not change, so mean increased inductance for 2 times, means that the equivalent permeability into 2 times.
Ciamar as urrainnear dùblachadh co-ionann a dhùblachadh? Bhon fhoirmle inductance a leanas, leis nach eil an àireamh oidhirpean N ag atharrachadh, tha an cuairteachadh magnetach agus an raon tar-roinneil den chridhe magnetach air a dhearbhadh a rèir meud fiosaigeach a ’chridhe magnetach, agus mar sin chan eil atharrachadh ann. Is e an aon adhbhar gu bheil an permeability U air a dhùblachadh, agus mar sin faodar barrachd flux magnetach a ghineadh
Common-mode inductor in common mode, therefore, when an electric current passes through, work under the mutual inductance model, under the effect of mutual inductance, the equivalent inductance is cost increase, therefore common mode impedance will be multiplied, and the common mode signal has good filtering effect, also is the common mode signal with large impedance block, don't let it pass the common-mode inductor, also is not to let this signal transmission to the next level of the circuit, the following is the inductive reactance ZL.
Know common-mode inductor under the mode of common mode inductance, is the main clue to know mutual inductance, magnetic components of all, no matter what name as long as mastering the form of the change of the magnetic field, magnetic field changes through the phenomenon to essence, also easy to understand, moreover we always grasp the magnetic field lines, it is our understanding the visual form of the magnetic field, consider whether the same side or different name or concept of the mutual inductance phenomenon or magnetic field, we are drawing the lines of magnetic force to realize their - master "magnet winding method" is explained before.
Ùine puist: Dùbhlachd-16-2020