JP2000346963A5

JP2000346963A5 -

Info

Publication number: JP2000346963A5
Application number: JP1999343261A
Authority: JP
Filing date: 1999-12-02
Publication date: 2004-12-24

Claims

A mechanical energy source, a generator driven by the mechanical energy source to generate induced power and supply electrical energy from first and second terminals, and the generator driven by the electrical energy An electronic device comprising: a rotation control unit configured to control a rotation cycle of the electronic device.
A switch capable of closing each terminal of the generator is provided,
The rotation control means is configured to apply a chopping signal to the switch so that the generator can be chopped and the duty ratio of the chopping signal is set based on the frequency of the chopping signal. Electronic equipment.

The electronic device according to claim 1,
An electronic device wherein the duty ratio of the chopping signal is set within a range determined in accordance with the frequency of the chopping signal.

The electronic device according to claim 1 or 2,
When applying a strong brake to the generator, the rotation control means applies a chopping signal having a duty ratio set within a range of 0.40 to 0.97 to the switch to control the generator by chopping. An electronic device characterized by being configured to:

The electronic device according to claim 3,
When applying a strong brake to the generator, the rotation control means applies a chopping signal having a duty ratio set within a range of 0.70 to 0.97 to the switch to control the generator by chopping. An electronic device characterized by being configured to:

The electronic device according to claim 4,
When applying a strong brake to the generator, the rotation control means applies a chopping signal having a duty ratio set within a range of 0.85 to 0.97 to the switch to control the generator by chopping. An electronic device characterized by being configured to:

The electronic device according to any one of claims 1 to 5,
The rotation control means includes a chopping signal generating unit configured to be capable of switching between a strong brake and a weak brake and applying the same to the generator, and generating two or more types of chopping signals having different duty ratios,
When a weak brake is applied to the generator, a chopping signal having a duty ratio smaller than a chopping signal applied when a strong brake is applied to the generator is applied to the switch, so that the generator is chopped. Electronic equipment characterized by being comprised in.

The electronic device according to claim 6,
When applying a weak brake to the generator, the rotation control means applies a chopping signal having a duty ratio set in a range of 0.01 to 0.30 to the switch to control the generator for chopping. An electronic device characterized by being configured to:

The electronic device according to claim 7,
When applying a weak brake to the generator, the rotation control means applies a chopping signal having a duty ratio set within a range of 0.01 to 0.15 to the switch to control the generator by chopping. An electronic device characterized by being configured to:

The electronic device according to claim 8,
When applying a weak brake to the generator, the rotation control means applies a chopping signal having a duty ratio set in a range of 0.05 to 0.10 to the switch to control the generator for chopping. An electronic device characterized by being configured to:

The electronic device according to any one of claims 1 to 9,
An electronic device, wherein a frequency of a chopping signal for intermittently switching the switch is three times or more a frequency of an electromotive voltage waveform generated at a set speed by a rotor of a generator.

The electronic device according to claim 10,
An electronic device wherein the frequency of the chopping signal is 3 to 130 times the frequency of an electromotive voltage waveform generated at a set speed by a rotor of a generator.

The electronic device according to any one of claims 1 to 11,
An electronic device, wherein the frequency of the chopping signal is 25 Hz to 1100 Hz.

The electronic device according to claim 12,
An electronic device, wherein the frequency of the chopping signal is 128 Hz to 512 Hz.

The electronic device according to any one of claims 1 to 13, further comprising first and second power supply lines for charging a power supply circuit with electric energy of the generator, and wherein the switch includes a first switch of the generator. And first and second switches respectively disposed between the first and second terminals and one of the first and second power supply lines, and the rotation control means includes a first and a second switch of the generator. An electronic apparatus characterized in that a switch connected to one terminal of a second terminal is kept turned on, and a chopping signal is applied to a switch connected to the other terminal of the generator so as to be intermittently controlled. .

15. The electronic device according to claim 14, wherein the rotation control means compares the electromotive voltage waveform of the generator with a reference waveform, and compares the output of each comparator with a time standard signal to output a difference signal. A signal output circuit that outputs a clock signal having a variable pulse width based on the difference signal; and a logic circuit that logically combines the clock signal and a comparator output and outputs the result to the switch. An electronic device characterized by the following.

15. The electronic device according to claim 14, wherein the first switch includes a first field-effect transistor having a gate connected to a second terminal of the generator, and a first field-effect transistor connected in parallel to the first field-effect transistor. A second field effect transistor connected and interrupted by the rotation control means, wherein the second switch is a third field effect transistor having a gate connected to a first terminal of the generator. And an electronic device comprising: a fourth field-effect transistor connected in parallel to the third field-effect transistor and intermittently controlled by the rotation control means.

A mechanical energy source, a generator driven by the mechanical energy source to generate induced power and supply electrical energy from first and second terminals, and the generator driven by the electrical energy A rotation control means for controlling the rotation cycle of the electronic device, comprising:
A method of controlling an electronic device, comprising: intermittently turning on and off a switch capable of closing each terminal of the generator at a duty ratio set based on the intermittent frequency, and performing brake control by chopping the generator.