VOLTAGE MONITORING MODULE AND VOLTAGE MONITORING SYSTEM
First Claim
1. A voltage monitoring module comprising:
- a first input terminal coupled to a high-voltage-side terminal of a battery cell through an external resistor;
a first terminal coupled to the high-voltage-side terminal of the battery cell;
a first switch coupled to the first input terminal; and
a control circuit that controls ON/OFF of the first switch, whereinan element that suppresses fluctuation of a voltage input to the first switch through the first input terminal is coupled between the first switch and a fixed voltage, andthe control circuit turns on the first switch, so that a first voltage output from the first input terminal through the first switch is compared with a second voltage output from the first terminal.
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Accused Products
Abstract
The voltage monitoring module (100) includes an input terminal (V1), a cell balancing input terminal (VB1), a switch (SWa—1), and a control circuit (CON). The input terminal (V1) is coupled to a high-voltage-side terminal of a battery cell (EC1) through a filter resistor (Rf). The cell balancing input terminal (VB1) is coupled to the high-voltage-side terminal of the battery cell (EC1). The switch (SWa—1) is coupled to the input terminal (V1). The control circuit (CON) controls ON/OFF of the switch (SWa—1). A filter resistor (C1) is coupled between the switch (SWa—1) and a ground. The control circuit (CON) turns on the switch (SWa—1), so that a high-voltage-side voltage (VH) is compared with a low-voltage-side voltage (VL).
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Citations
13 Claims
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1. A voltage monitoring module comprising:
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a first input terminal coupled to a high-voltage-side terminal of a battery cell through an external resistor; a first terminal coupled to the high-voltage-side terminal of the battery cell; a first switch coupled to the first input terminal; and a control circuit that controls ON/OFF of the first switch, wherein an element that suppresses fluctuation of a voltage input to the first switch through the first input terminal is coupled between the first switch and a fixed voltage, and the control circuit turns on the first switch, so that a first voltage output from the first input terminal through the first switch is compared with a second voltage output from the first terminal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification