| 摘要 |
FIELD: electricity. ^ SUBSTANCE: control microcircuit chip of a resonant circuit is connected to according control facilities, providing for voltage matching and adjustment of resistance. The control facility provides control parameters for the microcircuit chip in compliance with the input voltage. The control microcircuit chip modulates the resonant circuit. The control microcircuit chip with phase width-pulse modulation or control microcircuit chip with width-pulse modulation are connected to a module of voltage matching and a module of resistance adjustment, where the module of voltage matching matches voltage ranges, and the module of resistance adjustment corrects the equivalent resistance of output RT to the external circuit as change in voltage of the closed circuit accordingly. ^ EFFECT: implementation of control mode with frequency-pulse modulation, width-pulse modulation or their combination with regard to the resonant circuit via the voltage matching module and resistance adjustment module, reduced prime cost and increased efficiency. ^ 24 cl, 6 dwg |
