Electronic circuit and method for mounting electronic circuit
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.
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.