Control circuit, and power generation device having the same

A control circuit for determining a phase sequence of an n-phase alternating-current generator (having n phases and where n is an integer satisfying n≧2), the phase sequence relating to an order of output voltages respectively outputted from the phases, the control circuit comprising:

• a determination unit configured to determine the phase sequence of the n-phase alternating-current generator by detecting timing at which an output voltage outputted from each of the n phases either exceeds or falls below a predetermined threshold value;
• and
• a cycle obtaining unit configured to obtain a cycle of the output voltages respectively outputted from the phases of the n-phase alternating-current generator, wherein
• assuming that time resulting from division of the cycle obtained by the cycle obtaining unit by the n is specific time,
• the determination unit performs a phase determination procedure for obtaining one phase, out of the n phases, in which the output voltage has become no higher than the predetermined threshold voltage during a period from a time point that is x times of the specific time before predetermined reference timing (where x is an integer satisfying 0≦x≦n−1) to a time point that is (x+1) times of the specific time before the reference timing.

A control circuit for determining a phase sequence of an n-phase alternating-current generator (having n phases and where n is an integer satisfying n≧2), the phase sequence relating to an order of output voltages respectively outputted from the phases, the control circuit comprising:

• a determination unit configured to determine the phase sequence of the n-phase alternating-current generator by detecting timing at which an output voltage outputted from each of the n phases either exceeds or falls below a predetermined threshold value;
• and
• a cycle obtaining unit configured to obtain a cycle of the output voltages respectively outputted from the phases of the n-phase alternating-current generator, wherein
• assuming that time resulting from division of the cycle obtained by the cycle obtaining unit by a number twofold of the n is specific time,
• the determination unit performs a phase determination procedure for obtaining, out of the n phases, one phase in which the output voltage has become no lower than the predetermined threshold voltage and one phase in which the output voltage has become no higher than the threshold voltage one by one during a period from a time point that is x times of the specific time before predetermined reference timing (where x is an integer satisfying 0≦x≦2n−1) to a time point that is (x+1) times of the specific time before the reference timing.