System for measuring battery current for electric vehicle
First Claim
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1. A system for measuring a current of a battery for an electric vehicle, comprising:
- a current transducer for measuring the battery current during a charge or a discharge, and for generating a corresponding voltage signal;
a voltage-to-PWM (Pulse Width Modulation) converter for converting the voltage signal generated by the current transducer to a PWM signal; and
a power supply unit for supplying power to the current transducer.
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Abstract
A system for measuring a current of a battery for an electric vehicle includes a current transducer, a voltage-to-PWM (PWM (Pulse Width Modulation) converter, and a power supply unit. The current transducer measures a battery current during a charge or a discharge of the battery, and generates a corresponding voltage signal. The voltage-to-PWM converter converts the voltage signal input generated by the current transducer to a PWM signal. The power supply unit supplies power to the current transducer.
30 Citations
10 Claims
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1. A system for measuring a current of a battery for an electric vehicle, comprising:
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a current transducer for measuring the battery current during a charge or a discharge, and for generating a corresponding voltage signal;
a voltage-to-PWM (Pulse Width Modulation) converter for converting the voltage signal generated by the current transducer to a PWM signal; and
a power supply unit for supplying power to the current transducer. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system for measuring a current of a battery for an electric vehicle, comprising:
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a current level detector for measuring battery current during charging and discharging states of the battery, and for generating a corresponding voltage signal, the current level detector using substantially unipolar power;
an analog-to-digital waveform converter for converting the voltage signal generated by the current transducer to a substantially digital waveform;
a power supply unit for supplying unipolar power to the current transducer. - View Dependent Claims (8, 9, 10)
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Specification