SMPS control IC with 4 terminals
AssigneeMosway Semiconductor Limited
InventorsChiu-Sing Celement Tse, On-Bon Peter Chan, Chik-Yam Lee, Chi-Keung Tang, Chi-Ken Kenny Lee
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Abstract
A switching converter IC without a built-in power switching device includes a first terminal serving as a power supply positive connection, a second terminal serving as a power supply return connection, a third terminal serving as the switch-driving connection for controlling the switching duty of an external bipolar or MOSFET power switching device and also serving as a conduit for detection of current drawn by the power switching device to thereby provide overcurrent protection. Feedback information is derived from voltage between the first and the second terminals.
Claims5
A switching converter IC without a built-in power switching device, comprising:
- a first terminal serving as a power supply positive connection;
- a second terminal serving as a power supply return connection;
- a third terminal serving as the switch-driving connection for controlling the switching duty of an external bipolar or MOSFET power switching device, and also serving as a conduit for detection of current drawn by the power switching device to thereby provide overcurrent protection;
- wherein
- feedback information is derived from voltage between the first and the second terminals.
Dependencies are inferred from the claim text.