Ceramic capacitors, Vertical diodes, Trimmer – Velleman projects K8097 Assembly instructions User Manual
Page 8: Usb connector, Board to wire, Inductor, Electrolytic capacitors, Terminal block quartz crystal, Switch regulator, Bridge
- 8 -
Construction
Ceramic Capacitors
C17 ... C32 : 820pF (821)
C33, C34 : 22pF
(22)
C35 :
470nF
(474)
Vertical diodes
7
6
SK6
C...
D...
CATHODE
D1, D2 : 1N4007
Watch the polarity!
Watch the polarity!
Trimmer
5
RV...
RV1 : 10K
RV2 : 10K
RV3 : 10K
RV4 : 10K
USB connector
8
Adjust trimmer for apropriate output current.
C...
C...
Board to wire
9
SK1 : 4p
(MOTOR 1)
SK2 : 4p
(MOTOR 2)
SK3 : 4p
(MOTOR 3)
SK4 : 4p
(MOTOR 4)
SK7 : 2p
(SW1)
SK8 : 2p
(SW2)
SK9 : 2p
(SW3)
SK10 : 2p
(SW4)
SK11 : 2p
(SW5)
SK12 : 2p
(SW6)
SK13 : 3p
(OUT)
L...
L1, L2 : 330μH
Inductor
10
C...
Watch the
Watch the
polarity!
polarity!
C1 :
4,7μF (50V)
C6 :
100μF (35V)
C9 :
100μF (35V)
C12 : 100μF (35V)
C15 : 100μF (35V)
C39 : 100μF (35V)
C40 : 330μF (16V)
C41 : 100μF (
16V
)!!!
Electrolytic capacitors
11
X1 : 12MHz
X. . . .
.
Terminal Block
Quartz crystal
12
13
SK14 : 2p
(AC power 10 -30V)
VR1: LM2575TADJ
Switch regulator
14
VR1: LM257
Bridge
15
23
23
#
#
BR1 : RS603 (6A-200V)