Rongge

The choice of the right AC motor drive (VFD) for the application is very important and has great influence on its lifetime. If the capacity of AC motor drive is too large, it cannot offer complete protection to the motor and motor maybe damaged. If the capacity of AC motor drive is too small, it cannot offer the required performance and the AC motor drive maybe damaged due to overloading. But by simply selecting the AC motor drive of the same capacity as the motor, user application requirements cannot be met completely. Therefore, a designer should consider all the conditions, including load type, load speed, load characteristic, operation method, rated output, rated speed, power and the change of load capacity . The following table lists the factors you need to consider, depending on your requirements. Selection Note for VFD Why to use Choke for VFD? When the AC Motor Drive (VFD) is connected directly to a large-capacity power transformer (600kVA or above) or when a phase lead cap...

This is a simple High voltage inverter circuit diagram . This inverter circuit works with a transistor and transformer and other components to increase the voltage becomes high. Input supply voltage ranging from 3V to 6V DC, later it was raised to high voltage AC. However, in this inverter circuit output current is very small, probably under 0.1A even smaller. However, its use you can apply it on a fluorescent lamp 10W maximum power only, and that too takes time to switch on fluorescent lamps.  High voltage inverter circuit diagram Part List R1 = 4K7 R2 = 2K2 R3 = 330K C1 = 100nF C2 = 100nF 275V C3 = 0.22uF 275V Q1 = D506 L1 = 100 times winding, with 0.8mm diameter copper wire L2 = 50 times winding, with 0.8mm diameter copper wire L3 = 5000 times winding, with 0.4mm diameter copper wire

This is certainly a low-cost 20W/40W fluorescent lamp inverter circuit project. Even so the maximum effective would be to make use of a 40 watt tube (or two 20 watt tubes in series). It is a circuit you may put collectively from junk box parts or assemble from a kit. It certainly is quite easy to construct and no need printed circuit board. The transformer is hand-wound on a ferrite rod (from an old transistor radio) and the winding wire could be salvaged from an old transformer. We’re intentionally maintaining bills down to confirm how cheaply it could be put together. 20W/40W Fluorescent Lamp Inverter Schematic Dependant upon your stock of components, the cost could vary from $3.00 to about $15.00 and in case the wires from the transformer are soldered to the ends of the tube(s), you are able to make a free-standing light that can be set-up in the garden to light up a dark place without having the worry of operating 240v wiring. The cost of powering the circuit is about 22 watts and ...

This is a 100 Watt Inverter Circuit Diagram with Veroboard Print (LOW COST). This 100 watt Inverter Circuit use Minimum number of Components.I think it is quit difficult to make a decent one like this with further less components.Here we use {CD 4047 IC} for generating the 100 Hz pulses and four {2N3055} Transistor for driving the load.The IC1 {CD 4047} wired as an Astable  multi vibrator produces two 180 degree out of phase 100 Hz pulse train.These pulse train are preamplifier by the two TIP122 100 Watt Inverter Circuit Diagram Transistor.The output of the TIP122 Transistor are amplified by fout 2N3055 Transistor {Two transistor for each of half cycle} to drive the inverter transformer.The 220 AC be available at a secondary of the transformer.Nothing complex just the elementary inverter principle and the circuit great for small load like a few savers or fans.This is LOW COST inverter only 7 $. Info     12v Car Battery can be use for this Inverter Circuit.  ...

This is a micro - inverter DC voltage to AC from a 12v battery can generate a voltage of 110 or 220 volts AC and a frequency of 50Hz to 60Hz . The circuit is very simple and does not need a printed circuit board , It is composed of two transistors oscillators that generate the square wave pulse to the transformer in the case is 10 +10 and its output 220V or 110V . This circuit is 50Hz , but can be changed by changing the value of RC .   Micro Inverter circuit DC voltage AC 12v x110v Circuit Diagram This circuit has the power transistor and that depends on the transformer .

Monitoring of an inverter during operation has being the major challenge faced by local inverter Manufacture which has lead to low demand for locally built Inverters due to sudden break down or Battery being overcharged. most of the Inverter schematic claimed or used by Local Inverter Manufacture downloaded from the internet are for tutorial purpose not not for commercial there are tendencies for failure therefore it is time for us to start developing things of our own... proudly NIGERIA...... The featuring M.C.U is the Microchip PIC16F876A FEATURES OF THE ABOVE SCHEMATIC ARE STATED BELOW : INVERTER PROTECTION : LOW-BATTERY SHUTDOWN                                              : OVER LOAD SHUTDOWN INPUT                                              : O/P SHORT CCT SHUT-DOWN INPUT                                              : HIGH TEMPERATURE SHUT-DOWN INPUT                                              : LOW-BATTERY : BEEP START AT 11 V                                              :INVE...

This inverter circuit works with a transistor and transformer and other components to increase the voltage becomes high. Input supply voltage ranging from 3V to 6V DC, later it was raised to high voltage AC. However, in this inverter circuit output current is very small, probably under 0.1A even smaller. However, its use you can apply it on a fluorescent lamp 10W maximum power only, and that too takes time to switch on fluorescent lamps. Part List R1 = 4K7 R2 = 2K2 R3 = 330K C1 = 100nF C2 = 100nF 275V C3 = 0.22uF 275V Q1 = D506 L1 = 100 times winding, with 0.8mm diameter copper wire L2 = 50 times winding, with 0.8mm diameter copper wire L3 = 5000 times winding, with 0.4mm diameter copper wire