Texas Instruments ucc are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for Texas Instruments ucc DESCRIPTION. The UCC is a phase shift PWM controller that implements control of a full-bridge power stage by phase shifting the switching of one half-. This application report will compare the BiCMOS UCC to its bipolar predecessors, the. UC/6/7/8 family and the UC controller. All of these.

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The difference is that the increased current in the PMP increases the feedback voltage but in the EVM the increased phototransistor current reduces the feedback voltage.

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UCC3895: the different feedback circuit between UCC3895EVM-001 and PMP9622

The newly created question will be automatically linked to this question. Go to Support forums. I think it comes down to different designers, at different times making different decisions – both of which are workable solutions to the problem. In both the EVM and the PMP designs if Vout increases, the error amplifier will sink more current in the optocoupler which increases the current in the phototransistor.

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The opto output is fed into the error amplifier of the UCC through R Mentions Tags More Cancel. All content and ucc895 on this site are provided “as is”. TI is a global semiconductor design and manufacturing company.