| 摘要 |
<p>The voltage regulator has two transistors (T1, T2) as a differential pair. The base of the first transistor is connected to a voltage reference Vref and the base of the second receives a known fraction of the supply voltage. The regulator has two current mirrors (M1, M2) each with its input connected to the collector of one of the transistors. A resistance (R) is connected between the emitters of the first and second transistors (T1,T2). The voltage controller injects into the collector of the transistors a current equal to Q times its correct polarisation current, where Q is a predetermined real number. A signalling circuit allows delivery of an output current Iout proportional to the input current at one of the current mirrors.</p> |
