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US 2026/0291414 A1Published application
Motor control system
AssigneesKabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
InventorTamotsu Itou
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Abstract
According to one embodiment, a motor control system includes a motor including a rotor and a coil, an H bridge circuit configured to control current flowing in the coil, a motor control circuit configured to execute PWM (Pulse Width Modulation) constant current control of the H bridge circuit, a time measurement circuit configured to measure a first time in which the H bridge circuit is in a first state, and a first detection circuit configured to detect a low rotation or stop state of the rotor based on a length of the first time.
Claims11
A motor control system comprising:
- a motor including a rotor and a coil;
- an H bridge circuit configured to control current flowing in the coil;
- a motor control circuit configured to execute PWM (Pulse Width Modulation) constant current control of the H bridge circuit;
- a time measurement circuit configured to measure a first time in which the H bridge circuit is in a first state;
- and
- a first detection circuit configured to detect a low rotation or stop state of the rotor based on a length of the first time.
3 more elements
Dependencies are inferred from the claim text.