Sunday, May 8, 2016

Circuit Diagram IC Simplifies 115-V, 400-Hz Source Inverter

Robotronicdiagram. - This is one again inverter circuit diagram that design to produce 115 volt with 400Hz. This is Circuit Diagram IC Simplifies 115-V, 400-Hz Source Inverter like in Figure 1. below. You also can read: Circuit Diagram 115 Volt 400 Hz Inverter using MOSFET and CD4047 IC.

Circuit Diagram 

Component Part
  1. PA25 IC
  2. Resistors
  3. Capacitors
  4. Transformer
  5. Diode
  6. All component see in Figure 1. above

Circuit diagram like in Figure 1 above is Circuit Diagram IC Simplifies 115-V, 400-Hz Source Inverter. According Electronicdesign site describe that the first amplifier is connected as a Wien-bridge oscillator tuned to 400 Hz; the second amplifier is a unity-gain inverter. Both amps are biased at one half of the single supply so that the outputs can drive a standard 6.3-V filament transformer in push-pull mode with its primary and secondary interchanged.

Ideal power for test-bench and automotive applications is 12 to 14 Vdc, but standard 28-Vdc aircraft power may be used with the component values given if the transformer is changed to a 12.6-V type. In order to drive synchros and resolvers at 800 Hz, C1 and C2 should be changed to 0.005 mF.

Digging further into the design, bias can be set by letting R1 = R2, R3 = R4, and R10 = R11. The gain of U1A is set slightly greater than 3 by making the value of R5 7% larger than R3 (and R4). The oscillator frequency is determined by F = 1/2pRC, where C = C1 = C2 and R = R9 = R1 in parallel with R2..

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