POWER STABILIZATION CIRCUIT OF LOW NOISE BLOCK-DOWN CONVERTER

摘要

PURPOSE: A power stabilization circuit of a low noise block-down converter is provided to stabilize a bias voltage of a low noise block-down converter by installing a noise removal device at an input part of a regulator. CONSTITUTION: A regulator(33) is used for stabilizing power supplied from a power supply portion(31) and supplying bias voltage to a low noise amplifier portion(35) and a frequency converter. The low noise amplifier portion(35) is used for amplifying a satellite broadcasting signal received from a satellite antenna. The frequency converter converts a frequency of the signal received from the low noise amplifier portion(35) and transmits the converted signal to a satellite broadcasting receiver. A power noise removal circuit portion(32) is installed at one side of an input part of the regulator(33) in order to alternating current remove noise from direct power provided to the input part of the regulator(33).