Semiconductor device
The voltage sense IC with a polarity switching unit addresses the design constraints of high-voltage wiring on PCBs by enabling closer IC placement and reducing component types, thus minimizing PCB area and cost.
JP2025147014APending Publication Date: 2025-10-03ASTEMO LTD
Patent Information
- Application Number
- JP2025129565
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-08-01
- Publication Date
- 2025-10-03
Smart Images
Figure 2025147014000001_ABST
Abstract
To provide a voltage sensor IC mounted on a PCB substrate for detecting power supply voltage, allowing reduction in area of the PCB substrate and the number of types of components to be mounted.SOLUTION: A semiconductor device comprises: a first input terminal connected to one potential of voltage as monitor object; a second input terminal connected to the other potential of the voltage as monitor object; a voltage dividing resistor dividing voltage between the first input terminal and the second input terminal; a polarity changeover section connected to the voltage dividing resistor; and an amplifier circuit connected to the polarity changeover section. The polarity changeover section changes over, on the basis of polarity setting information, the polarities of a first path and a second path from the voltage dividing resistor to the amplifier circuit provided between the voltage dividing resistor and the amplifier circuit.SELECTED DRAWING: Figure 1
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Citation Information
Patent Citations
Voltage detector
JP2019178885A