Electronically Difference Between AC And DC Drive

In general, a DC drive converts an Alternating Current (AC) into Direct Current (DC) to run a DC motor. Most DC drives use a couple of thrusters (also known as SCR’s) to create a half cycle of DC output from a single phase AC control board repair input (known as half bridge method).  The more advanced ones use 6 SCR’s to generate a DC output from a 3 phase AC input (known as full-bridge).  So in the full-bridge method we have two SCRs for any input phase. 

An SCR is like a “one direction” switch which is controlled by the gate input. By applying low voltage to the gates the SCR turns on. Applying the voltage to the gate at a different angle of the input phase, the output current varies and thus the drive can control the motor speed. To verify the motor speed, and compensate if necessary, most DC drives require the motor to have a tachometer as a feedback. A tachometer or “tach” is basically is a small permanent magnet DC motor coupled to the main motor’s shaft.  

On the other hand AC/DC drives are more energy sufficient and they can handle rapid speed changes better because of running induction motors. They often have hundreds of different programmable parameters for failsafe protections.  Even though this makes the AC drive more complicated in a lot of ways, advancements in programming software provided by drive manufacturers is making them easier than ever to install and use.

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Why Do You Require Professional Electronic Repairing Company?

The technology across the globe has reached an all time high. More advancement and improvement in technology has helped us to realize how helpful it is to the world. Not to mention, it turns our world into a safe haven. CCTV systems and lock security systems would not have been possible if not for technology. However, there is still scope for improvement when we talk about electronic gadgets and appliances. They are still needed to be repaired when broken. Hence, people want the best professional repairing technicians for their equipment.

It is a well-known fact that every electronic item is broken after some time. The best way to still keep it running is to have it repaired by an expert. A lot of buildings have central air conditioning systems nowadays. One part of the air conditioning system is temperature controller which helps in controlling temperature according to the room requirements. It is a result of modern and advanced technology but still needs repairing. A professional and experienced repairing company would be able to solve the problem easily.

What are the other electronic items that these professionals can repair?

• Bio-medical equipment repair is a job of an experienced technician.

• They can repair the power supply and inverter.

• Industrial PC, printer, HMI, display, and monitors are other items.

• They can also repair flame scanners, gas detectors, and welding machines, the motor with ease.

• Communication, meteorological, and navigation gadgets can also be repaired.

These are some of the electronic items that these professional repairing companies can make work again. It takes a professional and expert to solve problems on all these items.