Patent ID: 7061772
Filing Date: 2006-06-13
Classification: H01L,H01P,H05K

Abstract:
1. An electronic circuit comprising: an integrated circuit having a power supply terminal; a transmission line type noise filter disposed adjacent to the integrated circuit for removing noise in a wide frequency range; and a printed board having a pattern through which power is supplied to the power supply terminal of the integrated circuit through the transmission line type noise filter; wherein the transmission line type noise filter comprises: wherein the printed board comprises a power line layer having a power supply pattern which includes a first power supply line and a second power supply line which are electrically separated, and wherein the power line layer is provided in a different plane from a mounting surface of the transmission line type noise filter and the integrated circuit; and wherein the transmission line type noise filter is electrically connected at the first anode terminal thereof to the first power supply line, which is electrically connected to the power supply terminal of the integrated circuit, and wherein the transmission line type noise filter is electrically connected at the second anode terminal thereof to the second power supply line, which is electrically connected to a DC power supply.