Advantages and disadvantages of SCR
Advantages and disadvantages of SCR

Advantages of SCR (Silicon controlled rectifier)

  • It can handle large voltages, current, and power
  • They had a simple method for to trigger the SCR device
  • Less noise operation
  • It can easily protect with a fuse
  • It had the ability to control AC power
  • It is smaller in size
  • Controlling of SCR is simple
  • Low cost
  • The switching speed of SCR is moderately high
  • It is a higher efficient device

Explain the main advantages of SCR

In this section we try to explain the advantages of SCR, this will helpful for understanding the properties of SCR.

  1. Handle a large amount of voltage, current, and power

The SCR is a power semiconductor device that blocks the forward and reverses voltage and control known as the current controlling device.

The handling of current, voltage, and power is high at SCR, this is the reason why they are used for power switching and rectification purposes.

  1. Simple triggering method

The SCR device will trigger with a simple method, the least forward voltage between gate and cathode is needed to trigger the SCR.

  1. Less noise operation

The SCR is a semiconductor device without any movable parts, the operation of SCR is with less noise.

  1. Protection of SCR

We can protect the SCR device with a fuse, the overcurrent and short circuit are the main faults acquired on a circuit, so fuses or circuit breakers are suitable to protect the SCR.

  1. Controlling of AC power

The SCR has the ability to control the AC power, the firing angle or triggering of the SCR is needed to control both half cycle, and also SCR works as a half-wave rectifier on AC circuits.

  1. SCR is an efficient device

The SCR is the most efficient electronic component, this is why they are been used in power electronics.

The power handling ability of the SCR is higher, this is due to SCR being a current controlling device.

Disadvantages of SCR (Silicon controlled rectifier)

  • The gate current cannot be negative
  • In AC circuit operation, we need to turn on SCR at each cycle
  • It cannot be used at higher frequencies
  • They only conduct in one direction
  • It cannot be easily turned off
  • Less switching speed

Explain the main disadvantages of SCR

The SCR is known as the power component also called the thyristor of power electronics, so the high power handling device naturally has many demerits, in this section, we explain the properties.

  1. Gate cannot negative

The gate current towards the SCR didn’t be negative, when SCR operates on the AC circuit, this is the bigger concern to consider.

  1. Less frequency range

The SCR had less operating frequency range or firing frequency, the higher speed switching applications are not possible with SCR.

  1. Conducts in one direction

We already know that the SCR is a unidirectional device, they only had the ability to conduct in one direction.

A short note about SCR (Silicon controlled rectifier)

Silicon-controlled rectifier or semiconductor-controlled rectifier is the full form of SCR, it is a four-layer solid-state current controlling electronic device.

The SCR is the unidirectional device used to control the high power at circuits, this is why SCR is known as the thyristor of power electronics.

We explain to you the advantages and disadvantages of SCR, the listing of advantages and disadvantages includes a detailed explanation about the actual properties of SCR.

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