KR950013038A

KR950013038A - Pulse Overlap Generator in Satellite Broadcast Receiver

Info

Publication number: KR950013038A
Application number: KR1019930021309A
Authority: KR
Inventors: 이태호
Original assignee: 배순훈; 대우전자 주식회사
Priority date: 1993-10-14
Filing date: 1993-10-14
Publication date: 1995-05-17

Abstract

본 발명은 펄스를 사용하여 트랜지스터와 다이오드의 전압강하 차이를 이용함으로써 레귤레이터의 공통 단자를 제어하므로 DC전원을 펄프사 중첩된 전원으로 변화시켜 서로 다른 DC 레벨 뿐만 아니라 전원의 펄스유무로써 LNB를 제어하는 수단에 의해 하이, 로우 밴드 선택과 포럴라이즈 선택을 동시에 수행할 수 있게 한 위성방송 수신기에서의 펄스 중첩 발생장치에 관한 것으로, 일정 진폭과 주파수를 갖는 펄스를 발생시키는 펄프 발생기(4)와, 상기 펄스 발생기(4)의 출력레벨에 따라 온/오프되어 제1,2 레귤레이터(1)(2)의 공통단자를 제어하는 트랜지스터(Q₁)와 다이오드(D1)를 포함하여 이루어진다.The present invention controls the common terminal of the regulator by using the voltage drop difference between the transistor and the diode by using a pulse, thereby changing the DC power supply to the superimposed power supply of the pulp and controlling the LNB with the presence or absence of power supply pulses as well as different DC levels. A pulse superimposition generator in a satellite broadcasting receiver capable of simultaneously performing high and low band selection and foramplification selection by means, comprising: a pulp generator (4) for generating a pulse having a constant amplitude and frequency; The transistor Q ₁ and the diode D1 are turned on and off according to the output level of the pulse generator 4 to control the common terminal of the first and second regulators 1 and 2.

Description

Pulse Overlap Generator in Satellite Broadcast Receiver

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 본 발명의 위성 방송 수신 과정을 설명하기 위한 블록도.2 is a block diagram illustrating a satellite broadcast receiving process of the present invention.

Claims

First and second regulators (1) and (2) for receiving a received signal (Vs) and supplying a predetermined signal; A switch circuit (3) for selecting one of the output signals (Vs ₁ ) (Vs ₂ ) of the regulator (1) (2), a pulse generator (4) for generating pulses having a constant amplitude and frequency; Pulses in the satellite broadcasting receiver comprising transistors Q ₁ and diodes D ₁ that are turned on / off according to the output level of the pulse generator 4 to control the outputs of the first and second regulators 1 and 2. Nesting generator.

2. The pulse superposition generator according to claim 1, wherein the transistor (Q ₁ ) and the diode (D1) are commonly connected to a common terminal of the first and second regulators (1) and (2).

※ Note: The disclosure is based on the initial application.