频率电压转换器的设计方案,得看频率范围,输出多少电压,电源电压等.一般的就是选一器件,按手册的电路搭好线路就能转换.器件:
LM2907,LM2917是频率电压转换器,外围器件用的少,挺好用的.
电源转换器的电压频率
电压频率转换器VFC（Voltage Frequency Converter）是一种实现模数转换功能的器件，将模拟电压量变换为脉冲信号，该输出脉冲信号的频率与输入电压的大小成正比。
国家/地区 电压 频率
Country Voltage Frequency
Afghanistan 220 V 50 Hz
Albania 220 V 50 Hz
Algeria 230 V 50 Hz
American Samoa 120 V 60 Hz
Andorra 230 V 50 Hz
Angola 220 V 50 Hz
Anguilla 110 V 60 Hz
Antigua 230 V 60 Hz
Argentina 220 V 50 Hz
Armenia 220 V 50 Hz
Aruba 127 V 60 Hz
Australia 240 V 50 Hz
Austria 230 V 50 Hz
Azerbaijan 220 V 50 Hz
Azores 220 V 50 Hz
Bahamas 120 V 60 Hz
Bahrain 230 V 50 Hz
Balearic Islands 220 V 50 Hz
Bangladesh 220 V 50 Hz
Barbados 115V 50 Hz
Belarus 220 V 50 Hz
Belgium 230 V 50 Hz
Belize 110/220 V 60 Hz
Benin 220 V 50 Hz
Bermuda 120 V 60 Hz
Bhutan 230 V 50 Hz
Bolivia 220/230 V 50 Hz
Bosnia Herzegovina 220 V 50 Hz
Botswana 231V 50 Hz
Brazil 110/220 V 60 Hz
Brunei 240 V 50 Hz
Bulgaria 230 V 50 Hz
Burkina Faso 220 V 50 Hz
Burma (Myanmar) 230 V 50 Hz
Burundi 220 V 50 Hz
Cambodia 230 V 50 Hz
Cameroon 220 V 50 Hz
Canada 120 V 60 Hz
Canary Islands 220 V 50 Hz
Cape Verde 220 V 50 Hz
Cayman Islands 120 V 60 Hz
Central African Republic 220 V 50 Hz
Chad 220 V 50 Hz
Channel Islands 230 V 50 Hz
Chile 220 V 50 Hz
China, People's Rep. of 220 V 50 Hz
China (Hong Kong) 220 V 50 Hz
Colombia 110 V 60 Hz
Comoros 220 V 50 Hz
Congo, Dem. Rep. (Zaire) 220 V 50 Hz
Congo, People's Rep. of 230 V 50 Hz
Cook Islands 240 V 50 Hz
Costa Rica 120 V 60 Hz
Côte d'Ivoire 220 V 50 Hz
Croatia 230 V 50 Hz
Cuba 110/220 V 60 Hz
Cyprus 240 V 50 Hz
Czech Republic 230 V 50 Hz
Denmark 230 V 50 Hz
Djibouti 220 V 50 Hz
Dominica 230 V 50 Hz
Dominican Republic 110 V 60 Hz
East Timor 220 V 50 Hz
Ecuador 120-127 V 60 Hz
Egypt 220 V 50 Hz
El Salvador 115V 60 Hz
England (UK) 230 V 50 Hz
Equatorial Guinea 220 V 50 Hz
Eritrea 230 V 50 Hz
Estonia 230 V 50 Hz
Ethiopia 220 V 50 Hz
Faeroe Islands 220 V 50 Hz
Falkland Islands 240 V 50 Hz
Fiji 240 V 50 Hz
Finland 230 V 50 Hz
France 230 V 50 Hz
French Guiana 220 V 50 Hz
Gaza 230 V 50 Hz
Gabon 220 V 50 Hz
Gambia 230 V 50 Hz
Georgia 220 V 50 Hz
Germany 230 V 50 Hz
Ghana 230 V 50 Hz
Gibraltar 240 V 50 Hz
Great Britain (UK) 230 V 50 Hz
Greece 220 V 50 Hz
Greenland 220 V 50 Hz
Grenada (Windward Is.) 230 V 50 Hz
Guadeloupe 230 V 50 Hz
Guam 110 V 60 Hz
Guatemala 120 V 60 Hz
Guinea 220 V 50 Hz
Guinea-Bissau 220 V 50 Hz
Guyana 240 V 60 Hz
Haiti 110 V 60 Hz
Holland (Netherlands) 230 V 50 Hz
Honduras 110 V 60 Hz
Hong Kong (China) 220 V 50 Hz
Hungary 230 V 50 Hz
Iceland 220 V 50 Hz
India 230 V 50 Hz
Indonesia 127/230 V 50 Hz
Iran 230 V 50 Hz
Iraq 230 V 50 Hz
Ireland (Eire) 230 50 Hz
Isle of Man 240 V 50 Hz
Israel 220 V 50 Hz
Italy 230 V 50 Hz
Ivory Coast 220 V 50 Hz
Jamaica 110 V 50 Hz
Japan 100 V 50/60 Hz
Jordan 230 V 50 Hz
Kazakhstan 220 V 50 Hz
Kenya 240 V 50 Hz
Kiribati 240 V 50 Hz
Korea, South 220 V 60 Hz
Kuwait 240 V 50 Hz
Laos 230 V 50 Hz
Latvia 220 V 50 Hz
Lebanon 110/220 V 50 Hz
Lesotho 220 V 50 Hz
Liberia 120 V 60 Hz
Libya 127 V 50 Hz
Lithuania 220 V 50 Hz
Liechtenstein 230 V 50 Hz
Luxembourg 220 V 50 Hz
Macau 220 V 50 Hz
Macedonia 220 V 50 Hz
Madagascar 220 V 50 Hz
Madeira 220 V 50 Hz
Malawi 230 V 50 Hz
Malaysia 240 V 50 Hz
Maldives 230 V 50 Hz
Mali 220 V 50 Hz
Malta 240 V 50 Hz
Martinique 220 V 50 Hz
Mauritania 220 V 50 Hz
Mauritius 230 V 50 Hz
Mexico 127 V 60 Hz
Micronesia (Federal States of) 120 V 60 Hz
Monaco 127/220 V 50 Hz
Mongolia 220 V 50 Hz
Montenegro 220 V 50 Hz
Montserrat (Leeward Is.) 230 V 60 Hz
Morocco 127/220 V 50 Hz
Mozambique 220 V 50 Hz
Myanmar (formerly Burma) 230 V 50 Hz
Namibia 220 V 50 Hz
Nauru 240 V 50 Hz
Nepal 230 V 50 Hz
Netherlands (Holland) 230 V 50 Hz
Netherlands Antilles 127/220 V 50 Hz
New Caledonia 220 V 50 Hz
New Zealand 230 V 50 Hz
Nicaragua 120 V 60 Hz
Niger 220 V 50 Hz
Nigeria 240 V 50 Hz
Northern Ireland 230 V 50 Hz
Norway 230 V 50 Hz
Okinawa 100 V 60 Hz
Oman 240 V 50 Hz
Pakistan 220 V 50 Hz
Palmyra Atoll 120 V 60 Hz
Panama 110 V 60 Hz
Papua New Guinea 240 V 50 Hz
Paraguay 220 V 50 Hz
Peru 220 V 60 Hz
Philippines 220 V 60 Hz
Poland 230 V 50 Hz
Portugal 230 V 50 Hz
Puerto Rico 120 V 60 Hz
Qatar 240 V 50 Hz
Réunion Island 220 V 50 Hz
Romania 230 V 50 Hz
Russia 220 V 50 Hz
Rwanda 230 V 50 Hz
St. Kitts and Nevis (Leeward Is.) 230 V 60 Hz
St. Lucia (Windward Is.) 240 V 50 Hz
St. Vincent (Windward Is.) 230 V 50 Hz
Samoa 230 V 50 Hz
Saudi Arabia 127/220 V 60 Hz
Scotland 230 V 50 Hz
Senegal 230 V 50 Hz
Serbia 220 V 50 Hz
Seychelles 240 V 50 Hz
Sierra Leone 230 V 50 Hz
Singapore 230 V 50 Hz
Slovak Republic 230 V 50 Hz
Slovenia 220 V 50 Hz
Somalia 220 V 50 Hz
South Africa 220/230 V 50 Hz
Spain 230 V 50 Hz
Sri Lanka 230 V 50 Hz
Sudan 230 V 50 Hz
Suriname 127 V 60 Hz
Swaziland 230 V 50 Hz
Sweden 230 V 50 Hz
Switzerland 230 V 50 Hz
Syria 220 V 50 Hz
Tahiti 110/220 V 60 Hz
Tajikistan 220 V 50 Hz
Taiwan 110 V 60 Hz
Tanzania 230 V 50 Hz
Thailand 220 V 50 Hz
Tibet (China) 220 V 50 Hz
Togo 220 V 50 Hz
Tonga 240 V 50 Hz
Trinidad & Tobago 115V 60 Hz
Tunisia 230 V 50 Hz
Turkey 230 V 50 Hz
Turkmenistan 220 V 50 Hz
Uganda 240 V 50 Hz
Ukraine 220 V 50 Hz
United Arab Emirates 220 V 50 Hz
UK (United Kingdom) 230 V 50 Hz
US (United States) 120 V 60 Hz
US, 220 V (industrial) 220 V 50 Hz
Uruguay 220 V 50 Hz
Uzbekistan 220 V 50 Hz
Vanuatu 230 V 50 Hz
Venezuela 120 V 60 Hz
Vietnam 127/220 V 50 Hz
Virgin Islands 115V 60 Hz
Wales 230 V 50 Hz
Yemen, Rep. of 220/230 V 50 Hz
Zambia 230 V 50 Hz
Zimbabwe 220 V 50 Hz
