A design for DC stabilized power supply and leakage-protection device
Author(s): Cun Yanping, Yang Changbao
Pages: 100-104
Year: 2015 Issue: 7
Journal: Experimental Technology and Management
Keyword: DC regulated power supply; DC-DC converter; leakage protection; LM2576/6; single chip mi-crocomputer;
Abstract: This paper proposes a design for the linear DC stabilized power supply and leakage-protection device with taking the chips of LM2577,LM2576 and the single-chip microcomputer as the core to produce a DC—DC converter, meanwhile,it provides the DC stabilized power supply with the rated output voltage of 5 V±0.05 V and the rated output current of 1 A.It can achieve that 5 V±0.05 V of output voltage is maintained with 5.5-25 V of input DC voltage whose voltage regulation factor(SU)is less than or equal to 1%.At the same time,the output DC regulated power supply current will reduce from 1 A to 0.01 A when the input voltage is 7 V,and the load regulation rate(SL)will be less than or equal to 1%,it gets the aim of power measurement and real-time display,what’s more,it can also realize the protection-action to the leakage of the simulation-leakage branch.
Pages: 100-104
Year: 2015 Issue: 7
Journal: Experimental Technology and Management
Keyword: DC regulated power supply; DC-DC converter; leakage protection; LM2576/6; single chip mi-crocomputer;
Abstract: This paper proposes a design for the linear DC stabilized power supply and leakage-protection device with taking the chips of LM2577,LM2576 and the single-chip microcomputer as the core to produce a DC—DC converter, meanwhile,it provides the DC stabilized power supply with the rated output voltage of 5 V±0.05 V and the rated output current of 1 A.It can achieve that 5 V±0.05 V of output voltage is maintained with 5.5-25 V of input DC voltage whose voltage regulation factor(SU)is less than or equal to 1%.At the same time,the output DC regulated power supply current will reduce from 1 A to 0.01 A when the input voltage is 7 V,and the load regulation rate(SL)will be less than or equal to 1%,it gets the aim of power measurement and real-time display,what’s more,it can also realize the protection-action to the leakage of the simulation-leakage branch.
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