| 摘要 |
A switched reluctance motor driving circuit, by which energy can be used efficiently, inverse-phase braking is possible, and torque ripple can be controlled through change of the current waveform. The driving circuit comprises a first switching section 14 for switching by receiving a predetermined electric signal, a magnetic flux generating section 13 for generating the magnetic flux according to the operation of the first switching section, a diode array 15 for transmitting the excitation current which flows through the magnetic flux generating means in one direction, a first energy storing section 16 for storing the excitation current which passed through the diode array as electric energy, a energy conversion section 17 for receiving the electric energy stored in the first energy storing section ad converting it to magnetic energy, a second switching section 18 for controlling the action of the energy conversion section, and a second energy storing section 19 for storing the output of the energy conversion section as electric energy. The system may also include a frequency conversion section (20, Figs 6, 7A and 7B) for controlling the switching action of the second switching section 18, a control section 25 for receiving a predetermined electric signal to generate a switching signal, a third switching section 26 for switching according to the switching signal outputted from the control section, and a inverse-flow preventing section 27 for preventing the energy of the first energy storing section 16 from flowing inversely when the third switching section 26 operates. The first and second switching sections 14 and 18 may use bipolar transistors (Figs. 3 and 4). <IMAGE> |
