微型机与应用
微型機與應用
미형궤여응용
MICROCOMPUTER & ITS APPLICATIONS
2014年
16期
22-24
,共3页
楚涓%姜波%刘翠海
楚涓%薑波%劉翠海
초연%강파%류취해
频率标准%负反馈放大器%分配电路
頻率標準%負反饋放大器%分配電路
빈솔표준%부반궤방대기%분배전로
frequency standard%negative feedback amplifier%distribution circuit
给出了一种1输入6输出频标分配电路的设计及硬件实现。采用电压串联负反馈电路实现信号的放大及分配,闭环增益稳定性比开环增益稳定性提高了1+A0F 倍;通过 PCB 布线优化设计,补偿通道间时延差。测试结果表明,设计的频标分配电路可满足1~140 MHz 的频标信号分配。
給齣瞭一種1輸入6輸齣頻標分配電路的設計及硬件實現。採用電壓串聯負反饋電路實現信號的放大及分配,閉環增益穩定性比開環增益穩定性提高瞭1+A0F 倍;通過 PCB 佈線優化設計,補償通道間時延差。測試結果錶明,設計的頻標分配電路可滿足1~140 MHz 的頻標信號分配。
급출료일충1수입6수출빈표분배전로적설계급경건실현。채용전압천련부반궤전로실현신호적방대급분배,폐배증익은정성비개배증익은정성제고료1+A0F 배;통과 PCB 포선우화설계,보상통도간시연차。측시결과표명,설계적빈표분배전로가만족1~140 MHz 적빈표신호분배。
A frequency signal distribution circuit with one input and six outputs is designed and implemented . The stability of the close loop gain is 1+A0F times of that of the open loop gain , when the distribution circuit is designed with a voltage series negative feedback amplifier . The differential group delay between channels is decreased by optimization design of the PCB wiring . Test results show that the frequency distribution circuit may be used to the frequency signals range from 1 MHz to 140 MHz .