Buck-boost DC converter and its control method
A DC converter and mode control technology, applied in the field of power supply, can solve the problems of high output voltage, changes, and affecting efficiency
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[0094] Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.
[0095] Such as figure 1 Shown is the functional block diagram of the BUCK-BOOST DC converter provided by the present invention. The BUCK-BOOST DC converter includes: a current detection module 1 , a BUCK-BOOST circuit module 2 , a drive module 3 , an output voltage sampling module 4 and a mode control module 5 . The current detection module 1 is connected to the BUCK-BOOST circuit module 2 for detecting the inductor current in the BUCK-BOOST circuit 1, and sends the current detection signal to the mode control module 5; the output The voltage sampling module 4 is connected to the output terminal of the BUCK-BOOST circuit module 2 for obtaining an output vo...
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