KR100435557B1 - Rf-모듈의 전원 공급방법 - Google Patents
Rf-모듈의 전원 공급방법 Download PDFInfo
- Publication number
- KR100435557B1 KR100435557B1 KR1019970079813A KR19970079813A KR100435557B1 KR 100435557 B1 KR100435557 B1 KR 100435557B1 KR 1019970079813 A KR1019970079813 A KR 1019970079813A KR 19970079813 A KR19970079813 A KR 19970079813A KR 100435557 B1 KR100435557 B1 KR 100435557B1
- Authority
- KR
- South Korea
- Prior art keywords
- pll
- switch
- module
- power
- turning
- Prior art date
Links
- 238000001514 detection method Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transceivers (AREA)
Abstract
Description
Claims (1)
- 마이크로 컴퓨터(90)의 제어하에 스위치(100)를 오프 시키는 단계와; 상기 단계의 설정시간을 계측하기 위해 마이크로 컴퓨터(90) 내부의 타이머를 온 시키는 단계와; 설정된 시간이 경과되었는가를 판단하는 단계와; 상기 단계에서 설정시간이 경과하면 마이크로 컴퓨터(90)의 제어하에 스위치(100)를 온 시키는 단계와; 상기 단계의 설정시간을 계측하기 위해 타이머를 온 시키는 단계와; PLL(50)과 VCO(60,70)에 전원(Vs1)을 인가하여 온 시키는 단계와; 상기 단계에서 PLL(50)과 VCO(60,70)가 동작하여 채널을 전환하는 단계와; 상기 단계에서 동작이 완료되어 채널이 고정되었는지를 판단하는 단계와; 상기 단계에서 채널이 고정되었다면 PLL(50)에서 발생하는 Lock 검출신호를 이용하여 수신부(30)와 FM 검파기(40) 및 송신부(80)에 전원(Vs2)을 인가하는 단계와; 수신되는 신호에 따라 FM 검파기(40)에서 발생하는 RSSI가 마이크로 컴퓨터(90)에 입력되면 이 신호가 기준세기 이상인가를 판단하는 단계와; 상기 단계에서 기준세기 이상이면 스위치(100)를 계속 동작하게끔 고정하는 단계와; RF-모듈의 모든 소자에 전원(Vs1,Vs2)이 인가되어 통화를 할 수 있는 단계;를 포함하는 것을 특징으로 하는 RF-모듈의 전원 인가방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019970079813A KR100435557B1 (ko) | 1997-12-31 | 1997-12-31 | Rf-모듈의 전원 공급방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019970079813A KR100435557B1 (ko) | 1997-12-31 | 1997-12-31 | Rf-모듈의 전원 공급방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR19990059601A KR19990059601A (ko) | 1999-07-26 |
KR100435557B1 true KR100435557B1 (ko) | 2004-10-14 |
Family
ID=37348796
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019970079813A KR100435557B1 (ko) | 1997-12-31 | 1997-12-31 | Rf-모듈의 전원 공급방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100435557B1 (ko) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5515364A (en) * | 1993-03-10 | 1996-05-07 | National Semiconductor Corporation | Radio frequency telecommunications transceiver |
KR970064055A (ko) * | 1996-02-26 | 1997-09-12 | 권문구 | 전원인가시 안정적인 클럭복귀회로 |
US5822387A (en) * | 1996-03-25 | 1998-10-13 | Cypress Semiconductor Corporation | Apparatus for fast phase-locked loop (PLL) frequency slewing during power on |
KR100266414B1 (ko) * | 1998-06-25 | 2000-09-15 | 전주범 | Rf모듈의 전원 인가장치 |
-
1997
- 1997-12-31 KR KR1019970079813A patent/KR100435557B1/ko not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5515364A (en) * | 1993-03-10 | 1996-05-07 | National Semiconductor Corporation | Radio frequency telecommunications transceiver |
KR970064055A (ko) * | 1996-02-26 | 1997-09-12 | 권문구 | 전원인가시 안정적인 클럭복귀회로 |
US5822387A (en) * | 1996-03-25 | 1998-10-13 | Cypress Semiconductor Corporation | Apparatus for fast phase-locked loop (PLL) frequency slewing during power on |
KR100266414B1 (ko) * | 1998-06-25 | 2000-09-15 | 전주범 | Rf모듈의 전원 인가장치 |
Also Published As
Publication number | Publication date |
---|---|
KR19990059601A (ko) | 1999-07-26 |
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