The simplest and most cost-effective way of converting a measured current to a voltage signal is to use a low-ohmic-value current-sense resistor. The upswing in products containing batteries, motors, or actuators that call for current monitoring or control has led to huge market growth for current-sense chip resistors with values below one ohm over the last two decades.
More recently, though, driven by power-efficiency demands and enabled by low-noise voltage-sense amplifiers, the value range has extended downward from milliohms to hundreds of microhms. Such low ohmic values present challenges to the user at many stages in their design and manufacturing processes.
TT Electronics plc (LON:TTG) is a provider of engineered electronics applications for performance-critical applications. The Company works with customers in the industrial, medical, aerospace and defence, and transportation sectors.