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As shown in the figure, the servo system circuit controlled by photocell. The phase shift can be obtained by using the resistors and capacitors in series. However, to get a large phase shift, you need to use a large resistor and capacitor. The voltage across the capacitor is also low. Phase shift currents can also be obtained using resistors and capacitors in series. This method is used in this system. The 24 ohm resistor is connected in series with the output winding of the small audio output transformer, which produces a phase shift voltage across the secondary winding. Use a capacitor in series with the winding. This voltage can be further corrected. It also compensates for waveform loss in the transformer. The total output exceeds the value that needs to be added to the first stage amplifier. Therefore, this output is taken from the center tap of the transformer winding and grounded by a 100 ohm resistor.
The JUK universal Screw Terminal Block series has the typical features which are decisive for practical applications:
l The universal foot allows the terminal blocks to be easily snapped onto the NS35 or NS32 DIN Rail with G shape.
l Closed screw guide holes ensure screwdriver operation perfect.
l For terminal block with different wire cross-sectional areas, complete accessories are available, such as end plates, partition plates, etc.
l Potential distribution achieved by fixed bridges in the terminal center or insertion bridges in the clamping space.
l Same shape and pitch Grounding Terminal Blocks as the JUK universal series.
l Adopt ZB marker strip system,achieve unified identification.
Double Level Terminal Blocks,Fuse Hold Terminal Block,Weidmuller Sak Terminal Block,Fuse Terminal Block
Wonke Electric CO.,Ltd. , https://www.wkdq-electric.com