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現(xiàn)貨總經(jīng)銷德國REXROTH比例放大器-力士樂放大器現(xiàn)貨
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德國REXROTH放大器時需要考慮許多因素,如:印刷電路板材料、接地方案、級間匹配/輸入輸出阻抗匹配、瞬態(tài)穩(wěn)定性和散熱處理等。印刷電路板材料一般選擇FR4或G-10,這類材料適合工作頻率低于3GHz的大多數(shù)低成本、無線應(yīng)用。放大器設(shè)計中還要關(guān)注瞬態(tài)穩(wěn)定性問題,高增益多級放大器容易受到反饋的影響,這種反饋是由輸出信號耦合到輸入通道引起的。電路會在相位差達(dá)到180度的頻點(diǎn)發(fā)生振蕩。為了使輸出耦合到輸入的RF信號zui小,建議RF信號走線盡可能短,以減小天線效應(yīng)。電路板接地不良也會引起振蕩,PA的大電流流經(jīng)阻抗不為0的地線會將電壓差和注入噪聲引入地線系統(tǒng)。
德國REXROTH放大器的效率比丙類放大器的還高,理論上可達(dá)100%,但它的zui高工作頻率受到開關(guān)轉(zhuǎn)換瞬間所產(chǎn)生的器件功耗(集電極耗散功率或陽極耗散功率)的限制。如果在電路上加以改進(jìn),使電子器件在通斷轉(zhuǎn)換瞬間的功耗盡量減小,則工作頻率可以提高。這就是戊類放大器。我們已經(jīng)知道,在低頻放大電路中為了獲得足夠大的低頻輸出功率,必須采用低頻功率放大器,而且低頻功率放大器也是一種將直流電源提供的能量轉(zhuǎn)換為交流輸出的能量轉(zhuǎn)換器。高頻功率放大器和低頻功率放大器的共同特點(diǎn)都是輸出功率大和效率高,但二者的工作頻率和相對頻帶寬度卻相差很大,決定了他們之間有著本質(zhì)的區(qū)別。低頻功率放大器的工作頻率低,但相對頻帶寬度卻很寬
力士樂放大器現(xiàn)貨型號
VT-VRPA2-1-1X/V0/T5 VT-VSPA2-1-1X/T1
VT-VRPA2-1-1X/V0/T5 VT-VSPA2-1-1X/T5
VT-11011-1X VT-VSPA2-50-1X/T1
VT-VSPA1-1-1X/V0/0 VT-VSPA2-50-1X/T5
VT10468-3X/BD VT-VRPA2-1-1X/V0/T1
VT-VSPA1K-1-1X
VT-VSPA1-1-1X/ C VT11131-1X/
VT-UK2-3X/ VT11006-1X
VT-VSPA2-50-1X/T5 VT10406-3X/FXY-1S-RXY
VT-VRPA2-1-1X/VO/T5 VR2C.0
VT-TRPD-2-1X/V0/0 VITON SEAL KIT FOR SL10PA2-3X
VT-SR2-1X/1-60 VDO RUDDER ANGLE INDICATOR N03 200 602
VT-PVAR2-1X/2 VT-VSPA2-50-1X/T5
VT-NE32-1X/ VT-VSPA2-50-1X/T1
VT-HNC100-2-2X/W-16-0-0 VT-VRPA2-1-1X/VO/T1
現(xiàn)貨總經(jīng)銷德國REXROTH比例放大器-力士樂放大器現(xiàn)貨
VT-HACDB-1-1X/V0/1-0-0 VT5014-3X/R5E
VT5041-2X/1 VT5014-3X/R5E
VT5007-1X/ VT5008-1X/
VT5004-2X/R5E VT5004-2X/R1E
VT3024-3X VT12350-3X/0
VT3013-3X/ VT11118-1X/
VT3002-2X/48F VT11013-1X
VT11132-1X/ VD5D.0/-L220
VT11118-1X/ VT-VSPD-1-1X/V0/0
VT11031-2X/ VT-VSPA2-1-1X/T1
VT11030-1X/ VT-VRPA1-50-1X/
VT10406-3X/FXY-0S-RXY VT-TRPD-1-1X/V0/0
VT-VRPA1-52-1X/ VT-RK1-3X/
VT-UK2-3X/ VT-DFPE-A-2X/G24K0/0A0V/V
VT-SR1-1X/1/4WS2EE10 VT5005-1X/ C
VTS0908-1X/1/NETZGERAET NT3 VT5003-4X/R1E
VTS0223-2X/XPL1 VT5001S2X/R5E
VT5003-4X/R5E VT3024-3X
VT1610-3X/E1/4WRD16-3X VT3006-3X/
VT12321-2X VT1516-1X/
VT11132-1X/ VT12321-2X BB-3
VT10468-3X/B1-RX VT12270-1X/21-0500
VENT FOR 4WS2EM10-4X/..315M. VT10468-3X/B3-RX
VT-VRPA2-2-1X/VO/T1 VR2D/L24
VT-VRPA2-2-1X/VO/T1 VD5D.0/-L110
VT-SR2-1X/1-60 VT-VSPA2-1-1X/T5
VT5036-1X/R5E VT-VSPA1K-1-1X
VT5015S-3X/R1E VT-VRPA2-2-1X/V0/T5
VT5013-3X/R1E VT-VRPA1-51-1X/
VT5001S2X/R5E VT-SVTSY-1-1X/1-1-1-1-1
VT19104-10-1 VTS0102-1X/FUW14-7,4-8,1-1
VT12350-3X/0 VT-HNC100-1-2X/W-08-P-0
VT12304-2X/ VT5035-1X/ (SMD)
VT11015-1X/ VT5007S-1X/R5
VT11005-1X/ VT3002-2X/32D CORE
VT10468-3X/FO-RX VT12427-1X/
VT-VSPA2-50-1X/T1 VT11023-1X
VT-VRPD-2-1X/V0/0 VT11012-1X/
VT5036-1X/R5E VT11006-1X
VT5003-4X/R1E VT10468-3X/BO-RX
VT2000-5X/ C VT10406-3X/FXY-OK-RXY
VT1610-3X/E1/4WRD10-3X VD5D.0/-L24
VT11080-2X/ VT-VRPD-2-1X/V0/0
VT11034-1X VT-RK2-3X/
VT11011-1X/ VT5041-2X/3-OV