| 摘要 |
A haptic gaming device includes an integral internal power supply (42) adapted to be connected directly to alternating current (AC) source (94). One or more electrical motors within the base of the device provide a feedback force to a user gripping a control handle of the device. Electrical power for the motors is provided by the integral internal power supply and is regulated to accommodate a relatively wide range of input AC line voltage. The power supply includes a pulse width modulated switching control (90) that produces pulses of direct current (DC), which are applied to a first primary winding (80) of a transformer (78) in the power supply. A second primary winding (82) in the transformer produces a feedback signal employed to control a pulse width modulated switching (PWM) control, which varies a width of the DC pulses applied to the first primary winding. |
