Know About Amplifiers Through This Post!

The amplifier is an electronic device or circuit used to increase an input signal’s voltage, current, or power. The process of increasing these parameters in a signal is known as amplification. They are broadly categorized into three types based on their functions. These are as follows:

• Voltage amplifier
• Current amplifier
• Power amplifier

Amplifiers are most popular in the audio signal. Where a weak signal from the source is fed to the amplifier, this amplifier will boost the signal power high enough to drive the speakers to reach a large audience. It is also used widely in radio transceivers. In these devices, the incoming signal received from antennas will be too weak to use directly by the user. Therefore, an amplifier is used to amplify the weak signal and then passed on to the user.

Similarly, when the user needs to send a signal back, this signal will be amplified with the help of an amplifier in the radio transceiver before modulating and transmitting them back through an antenna.

The amplifier has four important characteristics, which are listed hereunder:

• Linearity
• Gain
• Bandwidth
• Noise

Linearity is the property where the amplifier does not alter the shape of a signal and produces only the amplified version of the original signal. This majorly determines the quality of the output signal. Gain is the ratio between the magnitude of key parameters of input and output signals. For example, voltage gain is given by the ratio between the voltage of the original signal output to the voltage of the input signal.

Last but not least, noise is a measure of an amplifier to amplify input signals without introducing undesired signals in it. Similarly, bandwidth is the range of input signal frequencies within which an amplifier can effectively amplify. It can also be described as a range of input signal frequencies within which an amplifier will operate.

The pro amplifier designed at our company (Guangzhou Todun Electronics Co., Ltd) has a built-in efficient transformer and high-capacity filter power supply. This helps ensure lower distortion, greater low-frequency control force, and a more unmistakable voice when the amplifier outputs at full load. The pro amplifier offers three output modes: stereo, mono, and bridge.

The use of a time delay relay circuit allows a soft start, which helps protect the speaker against electric shock during POWER ON or OFF. The pro amplifier is widely used on many occasions for speech transmission and sound reinforcement. It has an ample energy linear power supply, high-efficiency toroidal transformer, independent module structure, high resolution, and clear and delicate voice.