Electric circuit device enabling impedance reduction

An electric circuit device comprising:

• an electric element connected between first and second terminals;
• and
• a first conductive plate connected to both ends of the electric element wherein
• the electric element includes:
• a first anode electrode disposed on the first terminal side;
• a second anode electrode disposed on the second terminal side;
• a first cathode electrode disposed on the first terminal side;
• a second cathode electrode disposed on the second terminal side;
• n (n is a positive integer) second conductive plate connected to the first and second anode electrodes;
• and
• m (m is a positive integer) third conductive plate alternately laminated with the n second conductive plate and connected to the first and second cathode electrodes;
• the first conductive plate is connected between the first and second anode electrodes and includes on the surface a ridged part having a depth equal to or greater than the minimum depth;
• and
• the minimum depth is a depth being less than the skin depth ds caused by the skin effect and suppressing the alternating component of a current flowing by the skin effect across the surface layer of the first conductive plate when the surface of the first conductive plate is flat, wherein the first conductive plate includes:
• a first connection connecting the first anode electrodes and
• a second connection connecting the second anode electrode;
• wherein
• the first and second connections have a width wider than the width of the electric element.

An electric circuit device comprising:

• an electric element connected between first and second terminals;
• and
• a first conductive plate connected to both ends of the electric element wherein
• the electric element includes:
• a first anode electrode disposed on the first terminal side;
• a second anode electrode disposed on the second terminal side;
• a first cathode electrode disposed on the first terminal side;
• a second cathode electrode disposed on the second terminal side;
• n (n is a positive integer) second conductive plate connected to the first and second anode electrodes;
• and
• m (m is a positive integer) third conductive plate alternately laminated with the n second conductive plate and connected to the first and second cathode electrodes;
• the first conductive plate is connected between the first and second anode electrodes and includes on the surface a ridged part having a depth equal to or greater than the minimum depth;
• and
• the minimum depth is a depth being less than the skin depth ds caused by the skin effect and suppressing the alternating component of a current flowing by the skin effect across the surface layer of the first conductive plate when the surface of the first conductive plate is flat, wherein
• the first conductive plate includes:
• a first connection connecting the first anode electrodes and
• a second connection connecting the second anode electrode;
• wherein
• the first and second connections have an extension extending out in the width direction of the electric element and/or the longitudinal direction of the electric element.

An electric circuit device comprising:

• an electric element connected between first and second terminals;
• and
• a first conductive plate connected to both ends of the electric element wherein
• the electric element includes:
• a first anode electrode disposed on the first terminal side;
• a second anode electrode disposed on the second terminal side;
• a first cathode electrode disposed on the first terminal side;
• a second cathode electrode disposed on the second terminal side;
• n (n is a positive integer) second conductive plate connected to the first and second anode electrodes;
• and
• m (m is a positive integer) third conductive plate alternately laminated with the n second conductive plate and connected to the first and second cathode electrodes;
• the first conductive plate is connected between the first and second anode electrodes and includes on the surface a ridged part having a depth equal to or greater than the minimum depth;
• and
• the minimum depth is a depth being less than the skin depth ds caused by the skin effect and suppressing the alternating component of a current flowing by the skin effect across the surface layer of the first conductive plate when the surface of the first conductive plate is flat, wherein
• the minimum depth is set to a depth being less than the skin depth determined by the highest frequency of the alternating current component generated by an electric load circuit connected to the electric element and suppressing the alternating current component having the highest frequency and flowing by the skin effect across the surface layer of the first conductive plate, wherein
• the ridged part has a depth equal to or greater than the skin depth, wherein
• the ridged part has a depth equal to or greater than the skin depth and equal to or less than the maximum depth;
• and
• the maximum depth is determined, when the number of the electric load circuit is one, based on the cross-section area of the first conductive plate required to conduct a direct current supplied to the one electric load circuit to the first conductive plate, and when j (j is an integer equal to or larger than 2) electric load circuits are connected to the electric element in parallel with each other, determined based on the cross-section area of the first conductive plate required to conduct direct currents supplied to all of the j electric load circuits to the first conductive plate.