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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Ask a new question Ask a new question Cancel. I think it comes down to different designers, at different times making different decisions – both of which are workable solutions to the problem.
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UCC3895: the different feedback circuit between UCC3895EVM-001 and PMP9622
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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Menu Search through millions of questions and answers User. In both the EVM and the PMP designs if Vout increases, the error amplifier will sink more uxc3895 in the optocoupler which increases the current in the phototransistor. The opto output is fed into the error amplifier of the UCC through R There is little difference between the two approaches.