Download 3.5 Ac speed motor controller

SCR UYGULAMA ORNEKLERİ
Dimer devreleri
Şekil 2.115.h) U 217 B ile 5 ila 30 C arasında ortam ısı
Şekil 2.115.i)TCA 785 tetikleme entegresiyle triyak yük denetimi
Tetikleme açısı 0 ile 180 arasında ayarlanabilir. (+) yarı peryotta 15’den, (-) yarı
peryotta 14 ten 100 s’lik birer pozitif darbe uygulanarak denetim yapılır.
Şekil 2.115.j) TCA 786 ile ters paralel bağlı iki tristörlü AA kıyıcısı devre denetimi
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below: bathroom fan controller circuit diagram (View)
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Published:2009-7-22 3:35:00 Author:Jessie
This circuit shows the basic UJT building block (Fig. 9-1), which is used in a light dimmer with soft-start operation that
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http://booklens.com/g-k-dubey/thyristorised-power-controllers
3.5 Ac speed motor controller
Figure 1: ac speed motor controller
3.5.1Principle of work
This AC motor speed controller can handle most universal type (brushed) AC motors and other loads up to about
250W. It works in much the same was a light dimmer circuit; by chopping part of the AC waveform off to effectively
control voltage. Because of this functionality, the circuit will work for a wide variety of loads including incandescent
light bulbs, heating elements, brushed AC motors and some transformers. The circuit tries to maintain a constant
motor speed regardless of load so it is also ideal for power tools. Note that the circuit can only control brushed AC
motors. Inductive motors require a variable frequency control.
Parts list:
R1
27K 1W Resistor
R2
10K 1/4W Resistor
R3
100K 1/4W Resistor
R4
33K 1/4W Resistor
R5
2.2K 1/4W Resistor
R6
1K 1/4W Resistor
R7
60K Ohm 1/4W Resistor
R8
3K Linear Taper Trim Pot
R9
5K Linear Taper Pot
R10
4.7K Linear Taper Trim Pot
R11
3.3K 1/4W Resistor
R12
100 Ohm 1/4W Resistor
R13
47 Ohm 1W Resistor
C1, C3
0.1uF Ceramic Disc Capacitor
C2
100uF 50V Electrolytic Capacitor
D1
6V Zener Diode
Q1
2N2222 NPN Transistor
SCR1
2n65041
TR1
TRIAC (See Notes)
U1
DIAC Opto-Isolator
BR1, BR2 5A 50V Bridge Rectifier
T1
1
Transformer
See appendix for datasheet