Electronic circuit and method for mounting electronic circuit

Patent metadata

Field	Value
Publication number	US-10250215-B2
Application number	US-201515523744-A
Country	US
Kind code	B2
Filing date	Dec 8, 2015
Priority date	Dec 10, 2014
Publication date	Apr 2, 2019
Grant date	Apr 2, 2019

Abstract

There has been a problem of generating anti-resonance between a three-terminal capacitor and a capacitor when the three-terminal capacitor and the capacitor are mounted. In order to solve the problem, this electronic circuit includes: a capacitor and a three-terminal capacitor, which are connected to a power supply terminal of a circuit component, and a power supply, and which are connected in parallel to each other between the power supply and ground; and a resistor that is connected in series between the ground and a ground terminal of the three-terminal capacitor and/or the capacitor.

First claim

What is claimed is:

1. An electronic circuit comprising:
a capacitor and a three-terminal capacitor that are connected to a power supply terminal of a circuit component and a power supply, and are connected in parallel to each other between the power supply and ground; and
a resistor that is connected in series between the ground and a ground terminal of the three-terminal capacitor and the capacitor.

2. The electronic circuit according to claim 1 , wherein, the capacitor is connected to the ground between the circuit component and the three-terminal capacitor.

3. The electronic circuit according to claim 1 , wherein the capacitor comprises a plurality of capacitors.

4. The electronic circuit according to claim 1 , comprising a wiring layer of a power supply wiring that is mounted in a printed wiring board where the electronic circuit is mounted, and that makes connection to the circuit component from the three-terminal capacitor, wherein the wiring layer is formed on a same wiring surface as a wiring layer where the three-terminal capacitor is mounted.

5. The electronic circuit according to claim 1 , comprising a wiring layer of a power supply wiring that is mounted in a printed wiring board where the electronic circuit is mounted, and that makes connection to the circuit component from the three-terminal capacitor, wherein the wiring layer is formed in a layer different from a wiring layer where the three-terminal capacitor is mounted.

6. A method for mounting an electronic circuit, the method comprising:
connecting a capacitor and a three-terminal capacitor to a power supply terminal of a circuit component and a power supply, and connecting the capacitor and the three-terminal capacitor in parallel to each other between the power supply and ground; and
connecting a resistor in series between the ground and a ground terminal of the three-terminal capacitor.

7. The method for mounting an electronic circuit according to claim 6 , comprising,
connecting the capacitor to the ground between the circuit component and the three-terminal capacitor.

8. The method for mounting an electronic circuit according to claim 6 , wherein the capacitor comprises a plurality of capacitors.

Assignees

• Nec Corp

Inventors

• Kashiwakura Kazuhiro

Classifications

• H01G4/228

  Terminals · CPC title

• H03H7/06 Primary

  including resistors (H03H7/075, H03H7/09, H03H7/12, H03H7/13 take precedence) · CPC title

• H01G17/00

  Structural combinations of capacitors or other devices covered by at least two different main groups of this subclass with other electric elements, not covered by this subclass, e.g. RC combinations · CPC title

• H01G4/38

  Multiple capacitors, i.e. structural combinations of fixed capacitors · CPC title

• H05K1/02

  Details · CPC title