My application (with UC3845 controller) has the following constraints:
1) CCM is expected over the output power range of 0.58 ~ 5 watts
2) Source: 12V primary battery
3) Outputs: +15V, +5V, -5V, -15V
4) Transformer/rectifier design: all turns ratios 1:1, bifilar pri~sec; all individual secondaries individually rectified and DC-stacked, which negates the effect of layer-to-layer capacitance
5) Current feedback will be utilized, probably using a small toroidal current transformer
6) Although the transformer provides galvanic isolation, the primary side will be directly connected to the secondary side so as to short out any common-mode noise
My question is:
Do you have an on-line simulation available so I can optimize the error-amp compensation without needing access to a laboratory? I need to achieve a successful paper design in one single iteration, and believe that is a realistic goal if I have access to a good simulator that includes a model for the UC3845.
Please advise
Thank you,
Richard Faith
