# What is the difference between Bit Rate and Baud Rate in Power Supply Remote Communications?

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Many trendy power provides, equivalent to TDK-Lambda's new Z+ programmable supplies and the HFE series of rack mount supplies, now feature serial information interfaces equivalent to I2C, USB 2.0, and RS485, to call just a few. The transmission charges of those serial information interfaces are specified as bits-per-second (bits/s) and/or baud charge. As a refresher, right here is a quick review of the difference between Bit charges and Baud charges.

The Bit charge is the variety of bits (binary zeros and ones) which might be transmitted throughout one second (bits/s). The Baud charge refers to the variety of sign items (symbols or characters) which might be transmitted per second.

Equation for Baud Rate:

baud charge = bit charge (bits/s) ÷ N, the place N is the variety of bits represented by every sign shift (image or character).

For instance, if the bit charge is 9,600 bits/s and the communications format require 8 bits per image, the baud charge could be 9,600 bits/s divided by 8 bits, which might equal 1200 baud.

Equation for Bit Rate:

Bits/s = baud per second x the variety of bits per image

Subsequently, from the above instance:

Bits/s = 1200 baud x 8 bits = 9,600 bits/s