Power Inverters
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Scan day: 09 February 2014 UTC
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Description: Construction plans and detailed description for high voltage power inverters to be used with radio electron tube transmitters.
construction plans, technical description Fig. 1: 1000 VA-Inverter 12 Volt -> 230 Volt An inverter allowes the use of 230V electrical appliances from a car battery or a solar battery. It must therefor supply a voltage that corresponds to an rms of 230 Volts sine-wave like household main supply or similar. Sine-wave voltages are not easy to generate. The advantage of sine-wave voltages ist the soft temporal rise of voltage and the absence of harmonic oscillations, which cause unwanted counter forces on engines, interferences on radio equipment and surge currents on condensers. On the other hand, square wave voltages can be generated very simply by switches, e.g. electronic valves like mosfet transistors. In former times electromagnetical switches, that operated like a door bell were used for this task. They were called "chopper cartridge" and mastered frequencies up to 200 cycles per second. The efficiency of a square wave inverter is higher than the appropriate sine wave inverter, due to its simplicity. With the help of a transformer the generated square wave voltage can be transformed to a value of 230 Volts (110 Volts) or even higher (radio transmitters e.g.).
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| Page title: | inverter |
| Keywords: | Pover Inverter, Photovoltaic, solar energy, power electronics, modified sine, Wolf-Günter Gfrörer |
| Description: | |
| IP-address: | 69.16.227.189 |
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| NS | Name Server: NS11.QTH.COM Name Server: NS12.QTH.COM |
| WHOIS | Status: clientTransferProhibited |
| Date | Creation Date: 28-jan-1997 Expiration Date: 29-jan-2015 |