CCL (aeris Laminate) ad parce spatium PCB quantum ad gradum, tunc implere solidum aeris, quae etiam aeris effusionem.
De significatione CCL ut infra:
- redigendum terram impedire et amplio anti-intercessiones facultatem
- Redigendum voltage gutta et amplio potentia efficientiam
- ad terram et reducere regio loop.
Ut magna link of PCB consilio, pro domesticis Qingyue Feng PCB Design Software, etiam quaedam aliena protel, powerpcb provisum est intelligens aeris munus, ita quam ad applicare bonam aeris, ut producat beneficia ad industria.
Nunc ut PCB Welding quantum possibile absque deformatio, maxime PCB manufacturers etiam requirere PCB excogitatoris ad replete aperto area de PCB cum aeris vel eget, sicut terram filum. Si CCL non tractatur proprie, erit ducere ad magis malus praecessi. CCL est "magis bonum quam nocere" vel "magis malum quam bonum"?
Sub conditione altum frequency, erit opus in typis circuitu tabula wiring capacitance, cum longitudo plus quam 1/20 sonitus frequency correspondentes, tunc in High Frequency, si non credere quod est in terra in terra, non credere, quod est in terra, si non credere quod est in terra sonus in terra "Terram", in facto, oportet esse minus quam spacing λ / XX, ferrum foraminis in cabling et multilayer terram planum "bene fundatum." Si CCL est tractatus proprie, non potest non tantum auget current, sed etiam ludere a dual partes protegit intercessiones.
Sunt duo basic vias CCL, nimirum magna area aeris Cladending et reticulum aeris, saepe et interrogavit, quod est optimum, quod est difficile dicere. Quid? Large area of CCL, with the increase of the current and shielding dual role, but there are large area of CCL,the board may become warped, even bubble if through the wave soldering.Therefore, generally will also open a few slots to alleviate the bubbling copper,The mesh CCL is mainly shielding, increasing the role of the current is reduced, From the perspective of heat dissipation, grid has benefits (it reduces the heating surface ex aeris) et played quidam partes electro protulit. But it should be pointed out that the grid is made by alternating direction of running, we know for line width for the work frequency of the circuit board has its corresponding “electricity” length of (actual size divided by the working frequency of the corresponding digital frequency, concrete books), when the working frequency is not high, perhaps the role of the grid lines is not obvious, once the electrical length and working frequency matching, is very bad, you will find that the circuit won't work Recte, emissionem signum intercessiones ratio opus undique, qui utuntur eget, consilium est eligere secundum operationem condiciones in circuitu eget, quam tenens in unum censes, quam alias frequency cense cum magno Circuit et alias solebant completum artificialem aeris et aliis communiter.
De CCL, ut sit ad consequi nostrum expectata effectus, deinde CCL facies opus ad attendere ad quid problems:
1. If the ground of PCB is more, have SGND, AGND, GND, etc., will be depending on the position of PCB board face, respectively to make the main “ground” as reference point for the independent CCL, to digital and analog to separate copper , before produce the CCL, first of all, bold corresponding power cords: 5.0 V, 3.3 V, etc., in this way ,a number of different shapes are formed more deformation structure.
II. Nam unum punctum connexionem diversis locis, modum est ad coniungere per 0 ohm resistentia vel magnetica bead vel inductance;
III. CCL iuxta crystallum oscillator. Et crystal oscillator in circuitu est summus frequency emissionem fontem. Modus est Circumda Crystalli oscillator cum aeris Cladending et humus testa crystallum oscillator separatim.
4.The problema de mortuorum zonam, si sentio suus 'valde magnus, et addere terram per in eam.
V. In principio aeque aeque humo wiring, filum humo cum wiring non confidunt addere vias cum complevit ccl ad eliminare terram ACUS ad connexum, quod est malum.
VI. Non est melius non esse angulum in tabula (= CLXXX °), quia ex parte electromagnom, hoc erit formare transmittendi antenna, sic utendi per margines arcus.
VII. Multiilayer Medius Suspendisse Wiring parce area, non aeris, quia suus 'durum facere CCL ad "fundatum"
8.The metallum intra apparatu, ut metallum radiator, metallum supplementi habena, oportet consequi "bonum grounding."
9.The Refrigerant metallum obstructionum ex tribus-terminatio intentione stabilitorque et grounding solitudo balteus prope crystallum oscillator esse bene fundatus. In Verbo, in CCL in PCB, si fromenti problema tractatur bene, oportet esse "bonum quam malum", potest reducere signo linea backflow regio, reducere signo electro intercessiones.
