Other Parts Discussed in Thread: TINA-TI, , TL431
Tool/software:
"Help with Transformer Simulation in TINA-TI: Achieving the Correct 12V Output from a 150V Input"
Hello TI Community,
I am working on simulating a transformer-based power supply circuit in TINA-TI, where the objective is to convert 150V RMS AC to 12V RMS DC (with a load of 10Ω) using a non-linear transformer with separated windings. However, I am encountering an issue where my output voltage is significantly lower than expected (around -2V or even much smaller, such as 24nV).
Here are the key details of my setup:
Primary Coil (L1): Turns = 9
Secondary Coil (L2 and L3): Turns = 14 (L2) and Turns = 39 (L3), with separated windings.
AC Source: 150V RMS, 50Hz sine wave.
Load Resistor: 10Ω across the secondary coil.
Coupling: Using a K = 1 coupling block for perfect transformer coupling.
Simulation: Running a Transient Analysis, with a time step of 0.1ms and simulation time of 100ms.
Despite all settings being correct and no errors appearing in TINA-TI, the secondary voltage is not reaching the expected 12V RMS output. Instead, it fluctuates at very low values like -2V or 24nV.
What I need help with:
What am I missing in the transformer setup to achieve 12V RMS output?
How can I adjust the turns ratio or other parameters to convert 150V RMS input to 12V RMS output?
Are there any specific considerations or settings in TINA-TI that I may have overlooked for transformer-based circuits?
Any insights or advice would be greatly appreciated!
Thank you
I used this exact circuit
