Abstract: A flyback power converter includes a power transformer, a first lossless voltage conversion circuit, a first low-dropout linear regulator and a secondary side power supply circuit. The first low-dropout linear regulator (LDO) generates a first operation voltage as power supply for being supplied to a sub-operation circuit. The secondary side power supply circuit includes a second lossless voltage conversion circuit and a second LDO. The second LDO generates a second operation voltage. The first operation voltage and the second operation voltage are shunted to a common node. When a first lossless conversion voltage is greater than a first threshold voltage, the second LDO is enabled to generate the second operation voltage to replace the first operation voltage as power supply supplied to the sub-operation circuit; wherein the second lossless conversion voltage is lower than the first lossless switching voltage.

Abstract: A heat exchange structure includes at least three wave-shaped non-woven cloth layers. Each wave-shaped non-woven cloth layer has a plurality of crest tops and trough bottoms. Adjacent wave-shaped non-woven cloth layers are interconnected at intersections of crest tops and trough bottoms thereof. Each wave-shaped non-woven cloth layer forms a unique flow channel. When a cool airflow and a hot airflow are respectively introduced into flow channels formed by adjacent wave-shaped non-woven cloth layers, a heat exchange is executed at the wave-shaped non-woven cloth layer between the cool airflow and the hot airflow.

Abstract: A method of fabricating a conductive textile is provided. First, erect-interlaced fibers are formed on a textile. Then, a conductive layer is formed on the erect-interlaced fibers and the surface of the textile to form a conductive textile.

Abstract: A heat exchange structure includes at least three wave-shaped non-woven cloth layers. Each wave-shaped non-woven cloth layer has a plurality of crest tops and trough bottoms. Adjacent wave-shaped non-woven cloth layers are interconnected at intersections of crest tops and trough bottoms thereof. Each wave-shaped non-woven cloth layer forms a unique flow channel. When a cool airflow and a hot airflow are respectively introduced into flow channels formed by adjacent wave-shaped non-woven cloth layers, a heat exchange is executed at the wave-shaped non-woven cloth layer between the cool airflow and the hot airflow.

Abstract: A method for producing durably anti-microbial yarns is disclosed. An inorganic anti-microbial material is formed on at least one surface of a knitted fabric by a physical vapor deposition method, and then the knitted fabric is deknitted to anti-microbial yarns. The anti-microbial yarns provide a better wash ability and durably anti-microbial effect, and are suitable to be blended with other yarns to a softer anti-microbial fabric.