| 摘要 |
Most temperature related reference generations are in the voltage domain, which means that reference voltages rather than reference currents are generated. In some applications such as driving laser diodes, currents are needed rather than voltages. In the present invention, as an alternative, the references are designed in the current domain, wherein the operation philosophy can be said to be inverse to the operation philosophy of the prior art. The temperature dependence of the currents are known and the currents (1, 2) will be processed by linear and/or non linear operation to generate currents (3) with predetermined temperature coefficients. The advantages of the invention can be outlined as more straightforward, scaling and summation (subtraction) are much easier and simpler in the current domain than in the voltage domain.
|
