Showing posts with label Wiring. Show all posts
Showing posts with label Wiring. Show all posts

Thursday, November 13, 2014

Ceiling fan wiring diagram with capacitor connection

Simple Wiring diagram of ceiling fan


ceiling
Fig-1:  Ceiling fan wiring diagram

This is a simple illustrated circuit diagram of ceiling fan. To be noted that the wiring diagram is for AC 220V single phase line with single phase ceiling fan motor. Here a simple SPST switch is used to supply power or not to the fan motor and a Regulator is used to controlling the fan speed. Though it is very simple, but one thing to be noted that Switch and Regulator should be connected with the phase line of main power, not neutral.

You may like to see ceiling fan regulator circuit to controlling fan speed

Capacitor connection diagram of ceiling fan

Ceiling fan has a “capacitor start motor” in its inside. AC single phase capacitor start motor has two winding; one is starting winding and another is running winding.

ceiling
Fig-2:  Ceiling fan capacitor connection diagram

As it is a capacitor start-capacitor run type motor; there a capacitor is used in series with Starting Winding, It defines the direction of rotation. It is an electrolytic capacitor.

Sometimes you may have faced this type of question...

  1. Why ceiling fan rotating in reverse?
  2. What makes a ceiling fan run backwards?
Two of this question sounds the same; the answer of the both question is “If capacitor is connected with running winding/main coil instead of starting winding/auxiliary coil then the direction of rotation will changed. That’s mean if you want to change the direction of rotation of the fan, just connect the capacitor with other winding.

Thursday, October 30, 2014

High End Power Amplifier Wiring Circuit

As the causes of the heat sink mounting surface to approximately 6 mm from the edge of the circle are fixed, assuming that the amplifier circuits mounted directly on the rails. This means that the leads of the transistors must be folded twice, so they are positioned properly, without a permanent mechanical stress in transistors. For high output transistors, the first corner a little closer to the plastic packaging than expected (in the wide part), otherwise the son of the rails or not to strike. Another possibility, which has the disadvantage that it weakens the structure, it is to grind enough metal in appropriate locations, to provide sufficient clearance. We have consciously rejected that option.

High-End

Once you have taken on these details and transistors can be easily placed on the free flat heatsink with her son through the holes in the circuit you can use the locations of the holes on the back mark of the radiators. Of course you must do so before the transistors are soldered to the track but is according to the holes for the final determination of the amplification circuits made in the base plate. Once the output transistors and their driver were mounted on the heat sink and soldered to the boards, the bottom plate can be removed easily.

Be careful not too much force on the terminals of the transistors, if the plates are exposed in this way.
Power transistors T14 and T15 must be mounted on heatsink bs with insulators (mica discs), while the other three transistors (Til, T12 and T13) can be screwed directly onto the heat sink. Make sure you use thermal paste to all the transistors.

After all the holes for the remaining circuits, transformers, switches and lights (front) and the ventilation slots in the chassis, you can screw up everything and you install the wiring.

Use well-designed audio cable connected to the input of the amplifier boards on the terminals in the vicinity of the inputs on the board overdrive display. With the two ground terminals to the input jacks for connecting the housing to the grounds of the two channels. This will avoid creating loops. The inputs to the outputs of the amplifier are in the middle of the board control overdrive removed. The best way to connect, to use thin, flexible cable, to connect the output jacks.