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短波电台电源选购的讨论 [复制链接]

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离线BD1ESV
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1630
只看该作者 100楼 发表于: 2012-02-05
'
在淘宝拍了个美国vicor开关电源.400w通讯电源.双路13.2v输出可以并或串.不知道怎样?了解的说说.
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这个电源不适用动态输出
离线邮政通讯
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137
只看该作者 101楼 发表于: 2012-02-06
通讯电源大比拼.学习了!
离线BA7EI
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7096
只看该作者 102楼 发表于: 2012-02-06
没有见过该电源实物,因容量太小也看不上它,冇该电源的线路图
[quote=晨雾太阳]能提供此电源的线路图吗?想参考下![/quote]

建议找本讲述电磁兼容性的书籍看看,本地bd7cm把只有一个平衡电感线圈的普通at电源又加了一组在前面,还未加强屏蔽,给ic-721供电,在单极长天线下的接收噪音大大降低,接近纯线性电源的效果。
离线bd7cv
发帖
3930
只看该作者 103楼 发表于: 2012-02-06
检测电源emc性能简单方法,在短波机天线输入端接几米电线,分别用线性电源,开关电源供电,在不同频点比较机器场强就可看出来
离线岳铁
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28
只看该作者 104楼 发表于: 2012-02-07
'
只有500元icom ps-30的嫖过
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我也有一台icom ps-30电源
离线江南牧童
发帖
672
只看该作者 105楼 发表于: 2012-02-07
我有一台建伍ts-450s原配ps-50线性电源。
离线auggunner
发帖
711
只看该作者 106楼 发表于: 2012-02-07
'
我认为开关电源好,但是要有要有选择,我一直就用开关电源供电,我用的是美国的12v 105a的那款电源,调到13.8v ,输出80a,玩的一样,自然风冷,没有风扇,已经用了多年,没有任何问题,自己做的盒子,装的表头。给一张内部图像,看看吧。
'

内部那个开关电源,我也有一台。苦于没有找到合适的外壳,增加v和a显示就好了。
离线BI7MCK
发帖
475
只看该作者 107楼 发表于: 2012-02-07
'
彗星 comet cps3200 电源
继续内部
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转换变压器小了点
离线bg3pzy
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782
只看该作者 108楼 发表于: 2012-02-07
[quote=江南牧童] 我有一台建伍ts-450s原配ps-50线性电源。 [/quote]
一样啊,总算遇到知己了。
离线晨雾太阳
发帖
2686
只看该作者 109楼 发表于: 2012-02-07
'
建议找本讲述电磁兼容性的书籍看看,本地bd7cm把只有一个平衡电感线圈的普通at电源又加了一组在前面,还未加强屏蔽,给ic-721供电,在单极长天线下的接收噪音大大降低,接近纯线性电源的效果。
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因为我不懂emi滤波器在输入端直流区域还是输入端交流区域加的效果显著,还是输出端直流、交流区域加效果明显,还是请您指导下!谢谢。
离线BG1SDW
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401
只看该作者 110楼 发表于: 2012-02-07
[quote=江南牧童] 我有一台建伍ts-450s原配ps-50线性电源。 [/quote]

qq聊聊?
离线BA1AK
发帖
1431
只看该作者 111楼 发表于: 2012-02-08
春节前从美国直邮又买了一台daiwa ss330电源,连运费到手1380元左右。
离线BA1IO
发帖
11227
只看该作者 112楼 发表于: 2012-02-08
description:

the hps-1a is a very small, light weight (only 1.25 lbs), power supply that is most useful for hams who take their transceivers when traveling. it is capable of operating most 12 volt, 100 watt transceivers in normal voice ssb or morse cw modes. it would make a great power supply for dxpeditions. it is especially useful when used with smaller transceivers. it is much smaller than the icom ic-706, ic-7000, ft-100d, etc.

the hps-1a is guaranteed to operate your 12 volt radio at up to 100 watts output using morse cw or voice ssb. you have to see it to believe it. it will power your radio continuously for normal qsos... in fact, you can contest with it!

your radio uses power only 35% of the time when transmitting cw, and about 25% during normal voice ssb operation. the gamma hps-1a provides full power capability by the use of ultra-capacitors which act like short term batteries. between spoken syllables and between morse code characters, the ultra-capacitors are being recharged, ready for the next high current pulse requirement. this allows the total weight and size of the power supply to be reduced to 1/3 that of any other power supply on the market. and it operates equally well on input voltages between 100 and 250 vac, 50 or 60 hz.

the hps-1a is over-voltage protected, and current limited. also virtually rf noise free.

specifications:


input voltage: 100-250 vac, 50-60 hz
input current: 2 amps maximum
output voltage: 13.8 vdc +/- 5%
output current: 5 amps continuous., 22 amps @ 25% duty/sec.
dimensions: 3.37" x 1.55" x 5.25"
weight: 1.25 lbs.
dc output connector: radio shack 274-151 (see drawing below)

note: output power should be limited to 25 or 30 watts during tune-up or other prolonged key-down operation. please do not adjust the output voltage to any value other than the factory setting. serious damage could occur if the output voltage is modified.







离线BA1IO
发帖
11227
只看该作者 113楼 发表于: 2012-02-08
跟bg1eao大大一起新得的!
离线BA1AK
发帖
1431
只看该作者 114楼 发表于: 2012-02-08
'
description:
the hps-1a is a very small, light weight (only 1.25 lbs), power supply that is most useful for hams who take their transceivers when traveling. it is capable of operating most 12 volt, 100 watt transceivers in normal voice ssb or morse cw modes. it would make a great power supply for dxpeditions. it is especially useful when used with smaller transceivers. it is much smaller than the icom ic-706, ic-7000, ft-100d, etc.
the hps-1a is guaranteed to operate your 12 volt radio at up to 100 watts output using morse cw or voice ssb. you have to see it to believe it. it will power your radio continuously for normal qsos... in fact, you can contest with it!
your radio uses power only 35% of the time when transmitting cw, and about 25% during normal voice ssb operation. the gamma hps-1a provides full power capability by the use of ultra-capacitors which act like short term batteries. between spoken syllables and between morse code characters, the ultra-capacitors are being recharged, ready for the next high current pulse requirement. this allows the total weight and size of the power supply to be reduced to 1/3 that of any other power supply on the market. and it operates equally well on input voltages between 100 and 250 vac, 50 or 60 hz.
the hps-1a is over-voltage protected, and current limited. also virtually rf noise free.
specifications:
input voltage: 100-250 vac, 50-60 hz
input current: 2 amps maximum
output voltage: 13.8 vdc +/- 5%
output current: 5 amps continuous., 22 amps @ 25% duty/sec.
dimensions: 3.37" x 1.55" x 5.25"
weight: 1.25 lbs.
dc output connector: radio shack 274-151 (see drawing below)
note: output power should be limited to 25 or 30 watts during tune-up or other prolonged key-down operation. please do not adjust the output voltage to any value other than the factory setting. serious damage could occur if the output voltage is modified.



'
崔老师介个可够精致的。
离线BA9BF
发帖
3203
只看该作者 115楼 发表于: 2012-02-11
请教一下,用场效应管做线性稳压电源的调整管,效果如何,有diy的资料吗?
离线BD6AHP
发帖
3610
只看该作者 116楼 发表于: 2012-03-18
留个名,到时好找。
离线BG5RAC
发帖
86
只看该作者 117楼 发表于: 2012-03-19
买了台烽火厂的ps-30开关电源,里面增加了过压保护电路,用起来安心些,暂时没发现有干扰。天线是梯形馈线,手动天调。离机器2米远。机器是ft-450d.
离线BH4ACK
发帖
88
只看该作者 118楼 发表于: 2012-05-01
仔细看了几遍这帖子才总算明白了点,话说回来S600电源的价格怎么看都还算厚道啊,光那两个EMC滤波器我查了下批发价格,就算是国产的都是大价钱啦
离线BH4ACK
发帖
88
只看该作者 119楼 发表于: 2012-05-02
说回来QJ1830的价位和结构还算合理吧,只是用了普通的EI变压器,如果换成性能更好的R型发热和效率以及电气噪声应该可以改善不少,几乎同样结构的环牛304用了环形变压器,性能就比1830好了不少