Artikel
Wireless Power Converter
Convey 50 watts through the air
In cooperation with Würth Elektronik, in this article we present a pair of modules for high-efficiency wireless power transfer with a maximum capacity of 50 watts over distances up to a few centimeters. This set is available at a special price to enable Elektor community members to try out this highly promising technology.
Gerber bestand
De PCB bij dit artikel is als Gerber file beschikbaar gesteld. Elektor Members kunnen exclusief deze files gratis downloaden en gebruiken om de PCB zelf af te drukken met geschikte apparatuur óf de Gerber te laten drukken via een dienstverlener.
Elektor kan u bijvoorbeeld de PCB Service van onze partner Eurocircuits van harte aanbevelen of AISLER.
TIP: Uw eerste PCB tot € 30 is gratis bij AISLER indien u bij het afrekenen gebruik maakt van coupon code ELCCBB.
Het gebruik van onze Gerber files is vrijgegeven onder een Creative Commons- licentie. Creative Commons biedt auteurs, wetenschappers en andere creatieve makers de vrijheid om op een flexibele manier met hun auteursrechten om te gaan.
PCB
Extra info / Update
* Maximum power: 50 W
* Recommended continuous power: 0–40 W
* Supply voltage: 12.5–24 VDC / 3 A min.
* Recommended supply voltage: 19.5 V (laptop adapter)
* Distance between coils: 1 cm maximum for optimal power transfer
* Efficiency: 88% at 40 W with 0.5 cm coil separation
* Recommended continuous power: 0–40 W
* Supply voltage: 12.5–24 VDC / 3 A min.
* Recommended supply voltage: 19.5 V (laptop adapter)
* Distance between coils: 1 cm maximum for optimal power transfer
* Efficiency: 88% at 40 W with 0.5 cm coil separation
Onderdelenlijst
Component List
Covers 1 transmitter / receiver board
Resistors
R1,R2,R5,R6,R12 = 4.7kOhm 1%, 0.25W, SMD 1206
R3,R4 = 4.7Ohm 1%, 0.25W, SMD 1206
R7,R8 = 1kOhm, 1 %, 0.25W, SMD 1206
R9 = 100kOhm, 1 %, 0.125W, SMD 0805
R10 = 180kOhm, 1 %, 0.125W, SMD 0805
R11 = 33kOhm, 1 %, 0.125W, SMD 0805
R13 = 11kOhm, 1 %, 0.125W, SMD 0805
R14,R17 = 3kOhm, 1 %, 0.125W, SMD 0805
R15,R16 = 100kOhm, 1 %, 0.25 W, SMD 1206
R18 = 0.022Ohm 5%, 0.5 W, SMD 1206
Capacitors
C1,C18 = 100nF 50V, 10%, X7R, SMD 0805
C2,C3 = 330µF 35V, 20%, 0Ohm15, 10x16 mm, radiaal
C4,C5,C12-C15,C17,C25,C26 = 4.7µF 50V, 10%, X7R, SMD 1210
C6,C7 = 68µF 25V, 0.015Ohm, 8x12 mm, radial, Can - SMD
C8,C9,C10,C11 = 100nF 310 VAC, 10%, polypropylene, 10mm pitch
C16 = 22nF 50V, 10%, X7R, SMD 0805
C19,C20,C24 = 4.7nF 50V, 5%, NP0, SMD 0805
C21,C22,C23,C27 = 22µF 16V, 20%, X5R, SMD 1210
Inductors
L1,L2 = 68µH 20%, 7.5A, 0.0273Ohm, SMD (Würth 74435586800)
L3 = 10µH, 20%, 1.2A, 0.322Ohm, SMD (Würth 74438336100)
L4 (not on PCB) = 24µH 10%, 6A, 0.1Ohm (Würth Wireless Power Charging Coil)
Semiconductors
D1,D2 = BYM12-200, DO-213AB (MELF)
D3,D4,D5 = BYM13-40, DO-213AB (MELF)
D6 = WE-TVSP (15V 1500W), DO-214AB
D7 = LED, blue, SMD 0805
T1,T2,T3,T4 = DZT5551, SMD SOT-223
T5,T6 = FDD86250, SMD TO252
T7,T8,T9,T10 = PBHV9115Z, SMD SOT-223
IC1 = WE_VDRM_Power-Module SMD TO263-7 (Würth type 171032401)
Miscellaneous
K1,K2 = 2-way PCB screw terminal block, 5mm pitch
J1 = 3-pin pinheader, 0.1’’ pitch
F1 = PTC resettable fuse, 0.048Ohm, Ihold 2.5A/30V (MF-R250-0-10)
J1 = jumper, 0.1’’ pitch
PCB # 160119-1
Additional parts on Transmitter Board
R19 = 1kOhm 1%, 0.125W, SMD 0805
R20 = 11kOhm 1%, 0.125W, SMD 0805
R21 = 2.2kOhm, 1%, 0.125W, SMD 0805
R22 = 47kOhm, 1 %, 0.125W, SMD 0805
R23,R25 = 470kOhm, 1 %, 125 mW, SMD 0805
R24 = 1MOhm 1%, 0.125W, SMD 0805
R26 = 33kOhm, 1%, 0.125W, SMD 0805
R27 = 100Ohm 1%, 0.125W, SMD 0805
P1 = 2kOhm 25%, 0.2W, SMD trim pot (e.g. Bourns 3364W-1-202E)
C28 = 10pF 50V, 5%, C0G/NP0, SMD 0805
C29 = 100nF 50V, 10 %, X7R, SMD 0805
D8 = BAT54, SMD SOT-23
T11 = BC850C, SMD SOT-23
T12 = BC860C, SMD SOT-23
IC2 = ZXCT1107SA-7, SMD SOT-23
S1 = pushbutton with make contact, SPST-NO (FSM4JRT)
Kit of parts with all components and boards for 1 transmitter and 1 receiver: Elektor Store # 160119-71
Covers 1 transmitter / receiver board
Resistors
R1,R2,R5,R6,R12 = 4.7kOhm 1%, 0.25W, SMD 1206
R3,R4 = 4.7Ohm 1%, 0.25W, SMD 1206
R7,R8 = 1kOhm, 1 %, 0.25W, SMD 1206
R9 = 100kOhm, 1 %, 0.125W, SMD 0805
R10 = 180kOhm, 1 %, 0.125W, SMD 0805
R11 = 33kOhm, 1 %, 0.125W, SMD 0805
R13 = 11kOhm, 1 %, 0.125W, SMD 0805
R14,R17 = 3kOhm, 1 %, 0.125W, SMD 0805
R15,R16 = 100kOhm, 1 %, 0.25 W, SMD 1206
R18 = 0.022Ohm 5%, 0.5 W, SMD 1206
Capacitors
C1,C18 = 100nF 50V, 10%, X7R, SMD 0805
C2,C3 = 330µF 35V, 20%, 0Ohm15, 10x16 mm, radiaal
C4,C5,C12-C15,C17,C25,C26 = 4.7µF 50V, 10%, X7R, SMD 1210
C6,C7 = 68µF 25V, 0.015Ohm, 8x12 mm, radial, Can - SMD
C8,C9,C10,C11 = 100nF 310 VAC, 10%, polypropylene, 10mm pitch
C16 = 22nF 50V, 10%, X7R, SMD 0805
C19,C20,C24 = 4.7nF 50V, 5%, NP0, SMD 0805
C21,C22,C23,C27 = 22µF 16V, 20%, X5R, SMD 1210
Inductors
L1,L2 = 68µH 20%, 7.5A, 0.0273Ohm, SMD (Würth 74435586800)
L3 = 10µH, 20%, 1.2A, 0.322Ohm, SMD (Würth 74438336100)
L4 (not on PCB) = 24µH 10%, 6A, 0.1Ohm (Würth Wireless Power Charging Coil)
Semiconductors
D1,D2 = BYM12-200, DO-213AB (MELF)
D3,D4,D5 = BYM13-40, DO-213AB (MELF)
D6 = WE-TVSP (15V 1500W), DO-214AB
D7 = LED, blue, SMD 0805
T1,T2,T3,T4 = DZT5551, SMD SOT-223
T5,T6 = FDD86250, SMD TO252
T7,T8,T9,T10 = PBHV9115Z, SMD SOT-223
IC1 = WE_VDRM_Power-Module SMD TO263-7 (Würth type 171032401)
Miscellaneous
K1,K2 = 2-way PCB screw terminal block, 5mm pitch
J1 = 3-pin pinheader, 0.1’’ pitch
F1 = PTC resettable fuse, 0.048Ohm, Ihold 2.5A/30V (MF-R250-0-10)
J1 = jumper, 0.1’’ pitch
PCB # 160119-1
Additional parts on Transmitter Board
R19 = 1kOhm 1%, 0.125W, SMD 0805
R20 = 11kOhm 1%, 0.125W, SMD 0805
R21 = 2.2kOhm, 1%, 0.125W, SMD 0805
R22 = 47kOhm, 1 %, 0.125W, SMD 0805
R23,R25 = 470kOhm, 1 %, 125 mW, SMD 0805
R24 = 1MOhm 1%, 0.125W, SMD 0805
R26 = 33kOhm, 1%, 0.125W, SMD 0805
R27 = 100Ohm 1%, 0.125W, SMD 0805
P1 = 2kOhm 25%, 0.2W, SMD trim pot (e.g. Bourns 3364W-1-202E)
C28 = 10pF 50V, 5%, C0G/NP0, SMD 0805
C29 = 100nF 50V, 10 %, X7R, SMD 0805
D8 = BAT54, SMD SOT-23
T11 = BC850C, SMD SOT-23
T12 = BC860C, SMD SOT-23
IC2 = ZXCT1107SA-7, SMD SOT-23
S1 = pushbutton with make contact, SPST-NO (FSM4JRT)
Kit of parts with all components and boards for 1 transmitter and 1 receiver: Elektor Store # 160119-71
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