In this experiment, the generation of alternating voltage and
the conversion of it to direct voltage by means of rectifying and
smoothing are presented.
An alternating voltage changes polarity periodically. The
electricity network supplies a sinusoidal alternating voltage (in
Germany: 230 Volt with a frequency of 50 hertz). Many household
devices that we daily use and handle need a direct voltage for
their operation, however. Examples of these reach from Laptops und
PCs to mobilephone chargers and on to halogen and LED lamps. A
rectifier is needed to convert the alternating voltage to direct
voltage. It can be directly built in the device or in an external
power supply. In engineering, the conversion of alternating to
direct voltage is also used for high voltage direct current
conveyance in the transport of electricity over long stretches.
| Materiallist (Excerpt) |
Product |
Amount |
|
Software Cobra4 - multi-user licence
|
14550-61
|
1
|
|
Cobra4 Wireless-Link
|
12601-00
|
1
|
|
Cobra4 Sensor-Unit Electricity, current ± 6 A/ voltage ± 30V
|
12644-00
|
1
|
|
Cobra4 Wireless Manager
|
12600-00
|
1
|
|
U-core
|
07832-00
|
1
|
|
Coil, 400 turns
|
07829-01
|
2
|
|
Bar magnet, l = 72mm
|
07823-00
|
1
|
|
Straight connector module with socket, SB
|
05601-11
|
4
|
|
Silicon-diode module 1N4007, SB
|
05651-00
|
1
|
|
Resistor module 1 kOhm, SB
|
05614-10
|
1
|
|
Capacitor module 47 µF non-polar electrolytic, SB
|
05645-47
|
1
|
|
Capacitor module 100 µF non-polar electrolytic, SB
|
05646-10
|
1
|
|
Capacitor module 470 µF non-polar electrolytic, SB
|
05646-47
|
1
|
|
T-shaped connector module, SB
|
05601-03
|
4
|
|
Straight connector module, SB
|
05601-01
|
1
|
|
Rotating stem
|
07836-00
|
1
|
|
Bearing plate
|
07837-00
|
1
|
|
Connecting cord, 32 A, 500 mm, red
|
07361-01
|
1
|
|
Connecting cord, 32 A, 500 mm, blue
|
07361-04
|
1
|
|
Connecting cord, 32 A, 250 mm, red
|
07360-01
|
1
|
|
Connecting cord, 32 A, 250 mm, blue
|
07360-04
|
1
|
|
Connecting cord, 100 mm, yellow
|
07359-02
|
1
|
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