Title:
RESONANT INVERTER DEVICE
Document Type and Number:
Japanese Patent JP3815035
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To further reduce the switching loss of a resonant inverter device, when collective commutation is made by using a capacitor for resonance and a reactor for resonance.
SOLUTION: Whether or not the loaded condition of a phase to be switched is a power running state or regenerative state is detected by means of a loaded condition detecting circuit 18, and when the phase is in the power running state, a resonant current is generated by means of a capacitor 6 for resonance and a reactor 7 for resonance. When a voltage VPN across upper and lower arms becomes negative thereafter, a main switching element to be tuned off is turned off. When the phase is in the regenerative condition, the phase to be switched is switched by short-circuiting the upper and lower arms in another phase, which is a power running state to each other and thereafter the phase which is in the power running state is returned to the original state.
Inventors:
Ryusuke Inoshita
Application Number:
JP7236198A
Publication Date:
August 30, 2006
Filing Date:
March 20, 1998
Export Citation:
Assignee:
株式会社デンソー
International Classes:
H02M7/797; H02M7/48; H02M7/5387; (IPC1-7): H02M7/797; H02M7/48; H02M7/5387
Domestic Patent References:
| JP51035685B1 | ||||
| JP54016622A | ||||
| JP58207882A | ||||
| JP63262093A | ||||
| JP11220885A |
Attorney, Agent or Firm:
Yoji Ito
Takahiro Miura
Takahiro Miura