Electrical equipment, filter equipment, and capacitor modules
By housing first and second capacitors with different capacitances in a single enclosure and stacking them alternately, the number of capacitive elements is reduced, addressing the challenge of increased capacitors in digital signal processing boards and maintaining effective signal attenuation.
JP7863771B2Active Publication Date: 2026-05-22PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
- Filing Date
- 2021-08-19
- Publication Date
- 2026-05-22
AI Technical Summary
Technical Problem
In digital signal processing boards with multiple power input lines, the number of decoupling capacitors increases, leading to a need for a solution to reduce the number of capacitive elements.
Method used
A capacitor module comprising a first and second capacitor, each with a different capacitance, is housed in a single enclosure, with the capacitors stacked alternately to form a filter device, reducing the number of exterior bodies and mounting area.
Benefits of technology
This configuration reduces the number of capacitive elements and suppresses the increase in mounting area, while maintaining effective signal attenuation over a wide bandwidth.
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Smart Images
Figure 0007863771000001 
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Abstract
To reduce the number of capacitive elements.SOLUTION: A filter device 600 includes a first conductive path 601, a second conductive path 602, and a capacitor module 11. The capacitor module 11 has a first capacitor 111, a second capacitor 112, and an exterior body. The first capacitor 111 is electrically connected between the first conductive path 601 and a first conductor 603 of reference potential. The second capacitor 112 is electrically connected between the second conductive path 602 and a second conductor 604 of reference potential. The exterior body 14 accommodates the first capacitor 111 and the second capacitor 112.SELECTED DRAWING: Figure 1
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