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Jerry Steele

Low Side RDS(on) Current Sensing

Jerry Steele
More Blogs from Jerry Steele
Battery management encompasses two main functions: 1. Charging adapter, and 2. Battery fuel gauging and protection on the battery side.
In high frequency switched systems where you measure current with a shunt, you may observe problems such as excessive amplitude on sine wave current ripple, overshoots on square wave ripple or any rapid transition of current, or excessive high-frequency noise. These problems are due to current shunt inductance, which becomes more significant at lower values of shunt resistors
Like all engineering solutions, zero-drift op amps also have their limitations. One of the less obvious is a result of the fact that the internal circuit contains a clocked system
In applications where the readout boards are remotely located, a voltage output current sense amplifier can be converted to a precision current output
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