| 摘要 |
<p>The invention relates to a voltage step up regulator for producing a frequency control voltage for a frequency synthesizer in a radio transmitter from a low operating voltage. To minimize the disturbances conveyed elsewhere in the radio device, the regulator of the invention comprises an amplifying means (Q1) controlled by an oscillator signal and operating in class A, the output of the amplifying means (Q1) comprising means (D2, C6, C7) for rectifying and filtering the amplified signal, the regulator further comprising feedback means (Q2, R1, R2) for stabilizing the output voltage by adjusting the amplitude of the amplified signal.</p> |
