Title:
RESOLVER TYPE ROTATION ANGLE DETECTOR
Document Type and Number:
Japanese Patent JPS63218818
Kind Code:
A
Abstract:
PURPOSE:To compute the rotation angle of a rotor by taking the trigger signal generated by shaping a waveform of induced AC voltage, by supplying a two- phase AC from a two-phase excitation circuit to the stator of a resolver and generating an induced AC voltage having the rotation angle information of the rotor in the resolver rotor. CONSTITUTION:The clock of a clock oscillator 1 is counted by a counter 2, and sin and cos two-phase AC signals are outputted from a two-phase AC generating circuit 3. These two-phase AC signals sin, cos are supplied to a resolver stator 4A to output induced AC voltage having rotation angle informa tion to a resolver rotor 4B. This AC voltage is inputted to a waveform shaping circuit 6 through an induced voltage signal detection line 5 and the waveform thereof is shaped to output a rectangular wave signal triggering a trigger signal generating circuit 9. A signal is outputted on the basis of said rectangular wave signal by the circuit 9 at every rising and falling of the output data from the counter 2 and latched to a latch circuit 10 and rotation angle information thetar, thetar+pi are detected by a microcomputer 11.
Inventors:
TAKAKADO YUZO
KAWAMURA HIROTOSHI
MURATA HIROHIKO
KAWAMURA HIROTOSHI
MURATA HIROHIKO
Application Number:
JP5279287A
Publication Date:
September 12, 1988
Filing Date:
March 06, 1987
Export Citation:
Assignee:
SHINKO ELECTRIC CO LTD
International Classes:
G01D5/245; (IPC1-7): G01D5/245
Domestic Patent References:
| JPS6173002A | 1986-04-15 | |||
| JP60193412B |
Attorney, Agent or Firm:
Takeo Honjo (1 person outside)