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US 2026/0221799 A1Published application
Undervoltage protection circuit and motor control circuit
AssigneeLG Innotek Co., Ltd.
InventorKun Min LEE
Life of this patent
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Abstract
An embodiment discloses an undervoltage protection circuit including a comparison unit which compares a battery voltage and a reference voltage, a charging unit including a capacitor, and a switching unit which allows any one of a voltage of the charging unit and the battery voltage to be supplied to a power source of a communication unit according to an output of the comparison unit.
Claims20
An undervoltage protection circuit comprising:
- a comparison unit that compares a battery voltage and a reference voltage;
- a charging unit including a capacitor;
- and
- a switching unit that allows any one of a voltage of the charging unit and the battery voltage to be supplied to a power source of a communication unit according to an output of the comparison unit.
1 more element
A motor control circuit comprising:
- a comparison unit that compares magnitudes of a plurality of voltages;
- a gate unit that adjusts power to control a motor;
- and
- a capacitor unit that is charged with charges and supplies a current to a bridge circuit unit;
- wherein the comparison unit transmits a signal according to a result of comparing the magnitudes of the plurality of voltages to the gate unit, the gate unit adjusts power according to the result of comparing the magnitudes of the plurality of voltages, and an input node at which the comparison unit receives the voltages is disposed in front of a supply node at which the capacitor unit receives the voltages.
2 more elements
Dependencies are inferred from the claim text.