| 摘要 |
A controllable switch is coupled to a source of energy and a first terminal of a deflection circuit. A second switch is coupled in parallel with the controllable switch. The controllable switch is poled to conduct forward operating current, while the second switch is poled to conduct return current to the source. A control circuit controls the duration of conduction of the controllable switch for providing a controlled amount of energy to the deflection circuit. The deflection rate voltage at the first terminal commutates off the controllable switch; the second switch then conducts the return current to the source of energy. |
