Motor driver
AssigneeRohm Co., Ltd.
InventorNaoki TAKAHASHI
Life of this patent
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Abstract
A motor driver for driving a motor includes: a half-bridge output stage including a high-side transistor and a low-side transistor, the motor being connected to a connection terminal to which the high-side transistor and the low-side transistor are connected; and a control circuit configured to monitor a terminal voltage of the connection terminal. The control circuit is configured to turn off the high-side transistor and turn on the low-side transistor, and initiate a brake mode to stop the motor. In the brake mode, when the terminal voltage is lower than a first setting voltage, the control circuit is configured to connect the connection terminal to an electric potential capable of maintaining the motor in a stopped state with the high-side transistor and the low-side transistor turned off.
Claims6
A motor driver for driving a motor, comprising:
- a half-bridge output stage including a high-side transistor and a low-side transistor, the motor being connected to a connection terminal to which the high-side transistor and the low-side transistor are connected;
- and
- a control circuit configured to monitor a terminal voltage of the connection terminal, wherein
- the control circuit is configured to turn off the high-side transistor and turn on the low-side transistor, and initiate a brake mode to stop the motor, and
- in the brake mode, when the terminal voltage is lower than a first setting voltage, the control circuit is configured to connect the connection terminal to an electric potential capable of maintaining the motor in a stopped state with the high-side transistor and the low-side transistor turned off.
Dependencies are inferred from the claim text.