Current sense method

摘要: A current-sense circuit for measuring a load current in switching power regulator may operate independently of process variation and temperature, measure bi-directional currents without requiring high-speed, high-voltage amplifiers operation. positive sense voltage be generated and/or negative values switch conducted by device the regulator, applying linear transformation to developed across according current. first matching having same channel length as device. second voltage, total that is proportional calculated subtracting from The ratio will independent temperature.