| 摘要 |
<p>An apparatus for supplying and controlling electrical power having a power source (3) for supplying electrical power to a primary load (4) and a secondary load (6, 7, 8) a capacitor (12) connected to an input (11) to the secondary load (6, 7, 8) and control means (7) operable to cause an operating condition of the apparatus to temporarily change from a primary operating condition in which power from the power source (3) is supplied to the primary (4) and secondary (6, 7, 8) loads to an alternative operating condition in which power from the power source (3) is not supplied to the primary load (4) but is supplied to the secondary load (6, 7, 8) thereby increasing the minimum voltage the capacitor (12) can maintain at the input (11) to the secondary load (6, 7, 8). <IMAGE></p> |
