Article
Spiral MicroTesla
sparks from a USB charger
It seems to be an unwritten rule in Hollywood: there must be an assortment of devices that crackle and spark in the lab of a mad scientist. It doesn't matter that all those noises and flashes have no apparent purpose, as long as the effects look spectacular!
Materials
Gerber file
CAM/CAD data for the PCB referred to in this article is available as a Gerber file. Elektor GREEN and GOLD members can exclusively download these files for free as part of their membership. Gerber files allow a PCB to be produced on an appropriate device available locally, or through an online PCB manufacturing service.
Elektor recommends the Elektor PCB Service service from its business partner Eurocircuits or AISLER as the best services for its own prototypes and volume production.
The use of our Gerber files is provided under a modified Creative Commons license. Creative Commons offers authors, scientists, educators and other creatives the freedom to handle their copyright in a more free way without losing their ownership.
PCB
Extra info / Update
* High voltage Tesla coil
* Uses printed PCB coils
* Powered by USB charger or adapter
* Safe sparks
* Complete DIY kit available
* Uses printed PCB coils
* Powered by USB charger or adapter
* Safe sparks
* Complete DIY kit available
Component list
Component List
Resistors
Default: 1%, 0.125W, SMD 0805
R1,R2,R3,R4 = 10kOhm
R5 = 47kOhm
R6,R7 = 2.2kOhm
R8 = 150kOhm
R9, R11,R12,R13 = 33kOhm
R10,R18,R19,R20,R21,R22 = 120Ohm
R14,R15,R16,R17,R23 = 330Ohm
R24 = 0.1Ohm, 250mW, 1%, SMD 1206
R25 = 1.5kOhm
R26 = 68Ohm, 250mW, 5%, SMD 1206
R27 = 10Ohm
R28,R29 = 100kOhm
Capacitors
C1,C2,C3 = 47nF, 400VDC, 5%, PP, 15mm pitch, 5mm width
C4,C5,C19,C21,C23 = 10µF, 35V, 10%, SMD 1210, X7R
C6,C7,C8,C9,C10,C11,C12,C32 = 220nF, 50V, 20%, SMD 0805, Y5V
C13,C14,C15,C16,C17,C18 = 10nF, 50V,10 %, SMD 0805, X7R
C20 = 2.2µF, 50V, 10%, SMD 0805, X5R
C22 = 220pF, 50V, 5%, SMD 0805, C0G/NP0
C24,C25,C26,C27,C28,C29,C30,C31 = 220µF, 35V, 20%, 8mm diam., 3.5mm pitch, EEUFC1V221L (Panasonic)
C33,C34,C35 = 4.7µF, 16V, 10%, SMD 0805, X7R
Inductor
L1 = 6.8µH, 3.04A, 0.0498Ohm, SMD
Semiconductors
D1 = SP0504SHTG, SMD SOT-23-6
D2 = VSSA310S-M3/61T, 100V/3A, SMD SMA
D3 = BAT54S, SMD SOT-23
D4 = BAV99, SMD SOT-23
LED1 = red, low power, SMD, KPTL-3216EC (Kingbright)
LED2,LED3,LED4,LED5 = blue, low power, SMD, KPTL-3216QBC-D (Kingbright)
T1 = DMP1045U, SMD SOT-23
T2,T3 = IRLML2030TRPBF, SMD SOT-23
T4,T6 = FZT851, SMD SOT-223
T5,T7 = FZT951, SMD SOT-223
IC1 = LT3477EFE#PBF, SMD, TSSOP-20
IC2 = UCC27537DBVT, SMD SOT-23-5
IC3 = UCC27536DBVT, SMD SOT-23-5
IC4 = SN74LVC1G04DBVR, SMD SOT-23-5
IC5 = PIC18F14K50-I/SS, SMD SSOP-20
Miscellaneous
X1 = 12.0MHz resonator, 0.5%, 5pF with internal capacitors, AWSCR-12.00CV-T (Abracon)
K1 = USB-B mini-connector, horizontal PCB-mounting, SMD
K2 = turned-pin IC socket (only one contact required)
K4 = 6-pin SIL pinheader, 0.1’’ pitch
S1 = pushbutton, horizontal, SKHHLQA010 (Alps)
Mechanical components
8 spacers 15 mm
4 bolts M3 x 40 mm plus nuts
Acrylic sheet top, 100x150x2 mm
Acrylic sheet bottom, 100x150x2 mm
Miscellaneous:
PCB 160498-1 v1.4
Resistors
Default: 1%, 0.125W, SMD 0805
R1,R2,R3,R4 = 10kOhm
R5 = 47kOhm
R6,R7 = 2.2kOhm
R8 = 150kOhm
R9, R11,R12,R13 = 33kOhm
R10,R18,R19,R20,R21,R22 = 120Ohm
R14,R15,R16,R17,R23 = 330Ohm
R24 = 0.1Ohm, 250mW, 1%, SMD 1206
R25 = 1.5kOhm
R26 = 68Ohm, 250mW, 5%, SMD 1206
R27 = 10Ohm
R28,R29 = 100kOhm
Capacitors
C1,C2,C3 = 47nF, 400VDC, 5%, PP, 15mm pitch, 5mm width
C4,C5,C19,C21,C23 = 10µF, 35V, 10%, SMD 1210, X7R
C6,C7,C8,C9,C10,C11,C12,C32 = 220nF, 50V, 20%, SMD 0805, Y5V
C13,C14,C15,C16,C17,C18 = 10nF, 50V,10 %, SMD 0805, X7R
C20 = 2.2µF, 50V, 10%, SMD 0805, X5R
C22 = 220pF, 50V, 5%, SMD 0805, C0G/NP0
C24,C25,C26,C27,C28,C29,C30,C31 = 220µF, 35V, 20%, 8mm diam., 3.5mm pitch, EEUFC1V221L (Panasonic)
C33,C34,C35 = 4.7µF, 16V, 10%, SMD 0805, X7R
Inductor
L1 = 6.8µH, 3.04A, 0.0498Ohm, SMD
Semiconductors
D1 = SP0504SHTG, SMD SOT-23-6
D2 = VSSA310S-M3/61T, 100V/3A, SMD SMA
D3 = BAT54S, SMD SOT-23
D4 = BAV99, SMD SOT-23
LED1 = red, low power, SMD, KPTL-3216EC (Kingbright)
LED2,LED3,LED4,LED5 = blue, low power, SMD, KPTL-3216QBC-D (Kingbright)
T1 = DMP1045U, SMD SOT-23
T2,T3 = IRLML2030TRPBF, SMD SOT-23
T4,T6 = FZT851, SMD SOT-223
T5,T7 = FZT951, SMD SOT-223
IC1 = LT3477EFE#PBF, SMD, TSSOP-20
IC2 = UCC27537DBVT, SMD SOT-23-5
IC3 = UCC27536DBVT, SMD SOT-23-5
IC4 = SN74LVC1G04DBVR, SMD SOT-23-5
IC5 = PIC18F14K50-I/SS, SMD SSOP-20
Miscellaneous
X1 = 12.0MHz resonator, 0.5%, 5pF with internal capacitors, AWSCR-12.00CV-T (Abracon)
K1 = USB-B mini-connector, horizontal PCB-mounting, SMD
K2 = turned-pin IC socket (only one contact required)
K4 = 6-pin SIL pinheader, 0.1’’ pitch
S1 = pushbutton, horizontal, SKHHLQA010 (Alps)
Mechanical components
8 spacers 15 mm
4 bolts M3 x 40 mm plus nuts
Acrylic sheet top, 100x150x2 mm
Acrylic sheet bottom, 100x150x2 mm
Miscellaneous:
PCB 160498-1 v1.4
Discussion (0 comments)
BRAD CALDWELL 3 years ago
Mathias_Claussen(Elektor) 3 years ago
the Gerber files are optimized for the pcb4makers services and can cause problems with other pcb companys.
Best Regards
Mathias Claußen
ElektorLabs 3 years ago
You should be able to order the board from Eurocircuits directly. They have it listed in their Elektor catalog (160498-91 Spiral Micro Tesla, see attached image), which is in their "Off the Shelf" menu. This means that you don't have to fight with gerber files at all.
P.S. The PCB manufacturers you refer to don't charge for analyzing your data, it is just a more time consuming process that gives access to many parameters that may be confusing for a non-expert.
Hopes this help.
Clemens
BRAD CALDWELL 3 years ago
BRAD CALDWELL 3 years ago
ElektorLabs 3 years ago
BRAD CALDWELL 3 years ago
ElektorLabs 3 years ago
The new download is available above: "Gerbers V110 with board outline as separate file"
Please give it a try (upload the complete archive, do not unpack it).
In case you need to enter the board size manually, it is 100 x 150 mm.
BRAD CALDWELL 3 years ago
ElektorLabs 3 years ago
Content Director, Elektor 3 years ago