Trong thi\u1ebft k\u1ebf ngu\u1ed3n \u0111i\u1ec7n, an to\u00e0n th\u01b0\u1eddng l\u00e0 \u01b0u ti\u00ean h\u00e0ng \u0111\u1ea7u v\u00e0 vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i ngu\u1ed3n \u0111i\u1ec7n c\u0169ng v\u1eady. Vi\u1ec7c n\u1ed1i \u0111\u1ea5t c\u00f3 th\u1ec3 b\u1ea3o v\u1ec7 s\u1ef1 an to\u00e0n c\u00e1 nh\u00e2n c\u1ee7a ng\u01b0\u1eddi d\u00f9ng v\u00e0 \u0111\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng c\u1ee7a thi\u1ebft b\u1ecb \u0111i\u1ec7n. Ph\u01b0\u01a1ng ph\u00e1p n\u1ed1i \u0111\u1ea5t ph\u00f9 h\u1ee3p \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i ngu\u1ed3n \u0111i\u1ec7n l\u00e0 g\u00ec? C\u00e1c k\u00fd hi\u1ec7u n\u1ed1i \u0111\u1ea5t ph\u1ed5 bi\u1ebfn l\u00e0 g\u00ec?<\/p>\n
B\u00e0i b\u00e1o n\u00e0y s\u1ebd gi\u1edbi thi\u1ec7u b\u00e0i to\u00e1n n\u1ed1i \u0111\u1ea5t c\u1ee7a ngu\u1ed3n \u0111i\u1ec7n chuy\u1ec3n m\u1ea1ch.<\/p>\n
\u0110\u1ecbnh ngh\u0129a n\u1ed1i \u0111\u1ea5t l\u00e0 g\u00ec?<\/p>\n
Trong kh\u00e1i ni\u1ec7m n\u1ed1i \u0111\u1ea5t hi\u1ec7n \u0111\u1ea1i, \u0111\u1ed1i v\u1edbi ng\u01b0\u1eddi k\u1ef9 s\u01b0 \u0111\u01b0\u1eddng d\u00e2y, \u00fd ngh\u0129a c\u1ee7a thu\u1eadt ng\u1eef n\u00e0y n\u00f3i chung l\u00e0 \u0111i\u1ec3m quy chi\u1ebfu c\u1ee7a \u0111i\u1ec7n \u00e1p \u0111\u01b0\u1eddng d\u00e2y. \u0110\u1ed1i v\u1edbi ng\u01b0\u1eddi thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng, n\u00f3 th\u01b0\u1eddng l\u00e0 t\u1ee7 ho\u1eb7c gi\u00e1 \u0111\u1ee1. \u0110\u1ed1i v\u1edbi k\u1ef9 s\u01b0 \u0111i\u1ec7n, n\u00f3 c\u00f3 ngh\u0129a l\u00e0 d\u00e2y n\u1ed1i \u0111\u1ea5t ho\u1eb7c n\u1ed1i \u0111\u1ea5t xanh v\u00e0 an to\u00e0n. M\u1ed9t \u0111\u1ecbnh ngh\u0129a ph\u1ed5 bi\u1ebfn l\u00e0 n\u1ed1i \u0111\u1ea5t l\u00e0 k\u00eanh c\u00f3 \u0111i\u1ec7n tr\u1edf th\u1ea5p \u0111\u1ec3 d\u00f2ng \u0111i\u1ec7n quay tr\u1edf l\u1ea1i ngu\u1ed3n. L\u01b0u \u00fd r\u1eb1ng n\u00f3 ph\u1ea3i c\u00f3 \u0111i\u1ec7n tr\u1edf v\u00e0 k\u00eanh th\u1ea5p.<\/p>\n
C\u00e1c k\u00fd hi\u1ec7u n\u1ed1i \u0111\u1ea5t ph\u1ed5 bi\u1ebfn l\u00e0 g\u00ec?<\/p>\n
C\u00e1c khu v\u1ef1c ho\u1eb7c khu v\u1ef1c \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 b\u1eb1ng PE, PGND, FG; Ngu\u1ed3n \u0111i\u1ec7n chuy\u1ec3n m\u1ea1ch Bgnd ho\u1eb7c dc-return-ac-48v (24V) (pin s\u1ea1c) tr\u1edf l\u1ea1i; m\u1eb7t b\u1eb1ng l\u00e0m vi\u1ec7c GND; C\u01a1 s\u1edf d\u1eef li\u1ec7u DGND; M\u1eb7t b\u1eb1ng m\u00f4 ph\u1ecfng Agnd; V\u00f9ng ch\u1ed1ng s\u00e9t LGNd.<\/p>\n
Ph\u01b0\u01a1ng ph\u00e1p n\u1ed1i \u0111\u1ea5t th\u00edch h\u1ee3p l\u00e0 g\u00ec?<\/p>\n
C\u00f3 nhi\u1ec1u c\u00e1ch n\u1ed1i \u0111\u1ea5t, bao g\u1ed3m n\u1ed1i \u0111\u1ea5t m\u1ed9t \u0111i\u1ec3m, n\u1ed1i \u0111\u1ea5t nhi\u1ec1u \u0111i\u1ec3m v\u00e0 n\u1ed1i \u0111\u1ea5t h\u1ed7n h\u1ee3p. N\u1ed1i \u0111\u1ea5t m\u1ed9t \u0111i\u1ec3m \u0111\u01b0\u1ee3c chia th\u00e0nh n\u1ed1i \u0111\u1ea5t m\u1ed9t \u0111i\u1ec3m n\u1ed1i ti\u1ebfp v\u00e0 n\u1ed1i \u0111\u1ea5t m\u1ed9t \u0111i\u1ec3m song song. N\u00f3i chung, n\u1ed1i \u0111\u1ea5t m\u1ed9t \u0111i\u1ec3m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c m\u1ea1ch \u0111\u01a1n gi\u1ea3n, n\u1ed1i \u0111\u1ea5t ph\u00e2n bi\u1ec7t gi\u1eefa c\u00e1c m\u00f4-\u0111un ch\u1ee9c n\u0103ng kh\u00e1c nhau v\u00e0 t\u1ea7n s\u1ed1 th\u1ea5p (f<\/p>\n
T\u1ea1i sao n\u00ean n\u1ed1i \u0111\u1ea5t ngu\u1ed3n \u0111i\u1ec7n chuy\u1ec3n m\u1ea1ch?<\/p>\n
\u0110\u1ea7u ti\u00ean, s\u1ef1 ra \u0111\u1eddi c\u1ee7a c\u00f4ng ngh\u1ec7 n\u1ed1i \u0111\u1ea5t l\u00e0 bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7 nh\u1eb1m ng\u0103n ch\u1eb7n ngu\u1ed3n \u0111i\u1ec7n v\u00e0 c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed b\u1ecb s\u00e9t \u0111\u00e1nh, v\u1edbi m\u1ee5c \u0111\u00edch \u0111\u01b0a c\u00e1c c\u1ed9t thu l\u00f4i v\u00e0o l\u00f2ng \u0111\u1ea5t \u0111\u1ec3 b\u1ea3o v\u1ec7 c\u00e1c c\u00f4ng tr\u00ecnh. \u0110\u1ed3ng th\u1eddi, n\u1ed1i \u0111\u1ea5t c\u0169ng l\u00e0 ph\u01b0\u01a1ng ti\u1ec7n h\u1eefu hi\u1ec7u \u0111\u1ec3 b\u1ea3o v\u1ec7 an to\u00e0n c\u00e1 nh\u00e2n. Khi \u0111\u01b0\u1eddng pha (ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1ch \u0111i\u1ec7n d\u00e2y k\u00e9m, \u0111\u01b0\u1eddng d\u00e2y b\u1ecb l\u00e3o h\u00f3a, v.v.) do l\u00fd do n\u00e0o \u0111\u00f3 ch\u1ea1m v\u00e0o v\u1ecf thi\u1ebft b\u1ecb, v\u1ecf thi\u1ebft b\u1ecb s\u1ebd c\u00f3 \u0111i\u1ec7n \u00e1p nguy hi\u1ec3m v\u00e0d\u00f2ng \u0111i\u1ec7n s\u1ef1 c\u1ed1 s\u1ebd ch\u1ea1y qua \u0111\u01b0\u1eddng d\u00e2y PE xu\u1ed1ng \u0111\u1ea5t, do \u0111\u00f3 \u0111\u00f3ng vai tr\u00f2 b\u1ea3o v\u1ec7. V\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a truy\u1ec1n th\u00f4ng \u0111i\u1ec7n t\u1eed v\u00e0 c\u00e1c l\u0129nh v\u1ef1c k\u1ef9 thu\u1eadt s\u1ed1 kh\u00e1c, n\u1ebfu ch\u1ec9 x\u00e9t \u0111\u1ebfn v\u1ea5n \u0111\u1ec1 ch\u1ed1ng s\u00e9t v\u00e0 an to\u00e0n trong h\u1ec7 th\u1ed1ng n\u1ed1i \u0111\u1ea5t th\u00ec c\u00f2n l\u00e2u m\u1edbi \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u.<\/p>\n
V\u00ed d\u1ee5: t\u00edn hi\u1ec7u gi\u1eefa m\u1ed7i thi\u1ebft b\u1ecb c\u1ea7n c\u00f3 m\u1eb7t \u0111\u1ea5t l\u00e0m m\u1eb7t \u0111\u1ea5t tham chi\u1ebfu ti\u00eau chu\u1ea9n c\u1ee7a t\u00edn hi\u1ec7u. V\u1edbi s\u1ef1 ph\u1ee9c t\u1ea1p c\u1ee7a thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed, t\u1ea7n s\u1ed1 t\u00edn hi\u1ec7u ng\u00e0y c\u00e0ng cao h\u01a1n. V\u00ec v\u1eady, trong thi\u1ebft k\u1ebf n\u1ed1i \u0111\u1ea5t ph\u1ea3i \u0111\u1eb7c bi\u1ec7t ch\u00fa \u00fd \u0111\u1ebfn c\u00e1c v\u1ea5n \u0111\u1ec1 trao \u0111\u1ed5i \u0111i\u1ec7n t\u1eeb nh\u01b0 nhi\u1ec5u l\u1eabn nhau gi\u1eefa c\u00e1c t\u00edn hi\u1ec7u. N\u1ebfu kh\u00f4ng, vi\u1ec7c n\u1ed1i \u0111\u1ea5t kh\u00f4ng \u0111\u00fang c\u00e1ch s\u1ebd \u1ea3nh h\u01b0\u1edfng nghi\u00eam tr\u1ecdng \u0111\u1ebfn \u0111\u1ed9 tin c\u1eady v\u00e0 t\u00ednh \u1ed5n \u0111\u1ecbnh khi v\u1eadn h\u00e0nh h\u1ec7 th\u1ed1ng. G\u1ea7n \u0111\u00e2y, c\u00f4ng ngh\u1ec7 tr\u1ea3 l\u1ea1i t\u00edn hi\u1ec7ut\u00edn hi\u1ec7u t\u1ed1c \u0111\u1ed9 cao c\u0169ng \u0111\u00e3 \u0111\u01b0a ra kh\u00e1i ni\u1ec7m v\u1ec1 m\u1eb7t \u0111\u1ea5t.<\/p>\n
T\u1ea1i sao m\u00f4 ph\u1ecfng v\u00e0 d\u1eef li\u1ec7u n\u00ean \u0111\u01b0\u1ee3c t\u00e1ch bi\u1ec7t v\u00e0 l\u00e0m th\u1ebf n\u00e0o?<\/p>\n
C\u1ea3 t\u00edn hi\u1ec7u analog v\u00e0 t\u00edn hi\u1ec7u s\u1ed1 s\u1ebd truy\u1ec1n tr\u1edf l\u1ea1i m\u1eb7t \u0111\u1ea5t. Do t\u00edn hi\u1ec7u s\u1ed1 thay \u0111\u1ed5i nhanh ch\u00f3ng n\u00ean nhi\u1ec5u do m\u1eb7t \u0111\u1ea5t k\u1ef9 thu\u1eadt s\u1ed1 t\u1ea1o ra s\u1ebd r\u1ea5t l\u1edbn v\u00e0 t\u00edn hi\u1ec7u t\u01b0\u01a1ng t\u1ef1 c\u1ea7n c\u00f3 c\u00f4ng vi\u1ec7c tham chi\u1ebfu r\u00f5 r\u00e0ng. N\u1ebfu m\u1eb7t \u0111\u1ea5t analog v\u00e0 k\u1ef9 thu\u1eadt s\u1ed1 \u0111\u01b0\u1ee3c tr\u1ed9n l\u1eabn v\u1edbi nhau, nhi\u1ec5u s\u1ebd \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00edn hi\u1ec7u analog.<\/p>\n
N\u00f3i chung, m\u1eb7t \u0111\u1ea5t t\u01b0\u01a1ng t\u1ef1 v\u00e0 m\u1eb7t \u0111\u1ea5t k\u1ef9 thu\u1eadt s\u1ed1 ph\u1ea3i \u0111\u01b0\u1ee3c x\u1eed l\u00fd ri\u00eang bi\u1ec7t, sau \u0111\u00f3 k\u1ebft n\u1ed1i v\u1edbi nhau th\u00f4ng qua h\u1ec7 th\u1ed1ng d\u00e2y m\u1ecfng ho\u1eb7c k\u1ebft n\u1ed1i t\u1ea1i m\u1ed9t \u0111i\u1ec3m duy nh\u1ea5t. \u00dd t\u01b0\u1edfng chung l\u00e0 c\u1ed1 g\u1eafng ng\u0103n ch\u1eb7n ti\u1ebfng \u1ed3n m\u1eb7t \u0111\u1ea5t k\u1ef9 thu\u1eadt s\u1ed1 truy\u1ec1n sang m\u1eb7t \u0111\u1ea5t t\u01b0\u01a1ng t\u1ef1. T\u1ea5t nhi\u00ean, \u0111\u00e2y kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t y\u00eau c\u1ea7u qu\u00e1 kh\u1eaft khe. \u0110\u1ea5t analog v\u00e0 digital ph\u1ea3i \u0111\u01b0\u1ee3c t\u00e1ch bi\u1ec7t. N\u1ebfu \u0111\u1ea5t digital g\u1ea7n ph\u1ea7n analog c\u00f2n s\u1ea1ch th\u00ec c\u00f3 th\u1ec3 k\u1ebft h\u1ee3p \u0111\u01b0\u1ee3c.<\/p>\n
L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 n\u1ed1i \u0111\u1ea5t t\u00edn hi\u1ec7u d\u1eef li\u1ec7u tr\u00ean b\u1ea3ng k\u00e9p?<\/p>\n
N\u00f3i chung, t\u1ed1t nh\u1ea5t n\u00ean s\u1eed d\u1ee5ng \u0111i\u1ec3m n\u1ed1i \u0111\u1ea5t g\u1ea7n nh\u1ea5t trong thi\u1ebft k\u1ebf v\u00e0 r\u1ea5t d\u1ec5 d\u00e0ng n\u1ed1i \u0111\u1ea5t t\u00edn hi\u1ec7u chung sau khi c\u00f3 thi\u1ebft k\u1ebf bo m\u1ea1ch nhi\u1ec1u l\u1edbp ho\u00e0n ch\u1ec9nh. Nguy\u00ean t\u1eafc c\u01a1 b\u1ea3n l\u00e0 \u0111\u1ea3m b\u1ea3o t\u00ednh li\u00ean t\u1ee5c c\u1ee7a h\u1ec7 th\u1ed1ng d\u00e2y \u0111i\u1ec7n, gi\u1ea3m s\u1ed1 l\u01b0\u1ee3ng vias, g\u1ea7n m\u1eb7t ph\u1eb3ng \u0111\u1ea5t ho\u1eb7c m\u1eb7t ph\u1eb3ng ngu\u1ed3n \u0111i\u1ec7n, v.v.<\/p>\n
Thi\u1ebft b\u1ecb giao di\u1ec7n b\u1ea3ng \u0111\u01a1n \u0111\u01b0\u1ee3c n\u1ed1i \u0111\u1ea5t nh\u01b0 th\u1ebf n\u00e0o?<\/p>\n
M\u1ed9t s\u1ed1 bo m\u1ea1ch k\u00e9p s\u1ebd c\u00f3 \u1ed5 c\u1eafm i\/o m\u1edf ra th\u1ebf gi\u1edbi b\u00ean ngo\u00e0i, ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111\u1ea7u n\u1ed1i RF giao ti\u1ebfp n\u1ed1i ti\u1ebfp v\u00e0 \u0111\u1ea7u n\u1ed1i RJ45 RF giao di\u1ec7n m\u1ea1ng. N\u1ebfu thi\u1ebft b\u1ecb n\u1ed1i \u0111\u1ea5t c\u1ee7a h\u1ecd kh\u00f4ng \u0111\u01b0\u1ee3c x\u1eed l\u00fd \u0111\u00fang c\u00e1ch, h\u1ecd c\u0169ng s\u1ebd g\u00e2y nguy hi\u1ec3m cho m\u1ecdi c\u00f4ng vi\u1ec7c b\u00ecnh th\u01b0\u1eddng. V\u00ed d\u1ee5: c\u00f3 c\u00e1c m\u00e3 l\u1ed7i v\u00e0 t\u1ef7 l\u1ec7 m\u1ea5t g\u00f3i trong k\u1ebft n\u1ed1i c\u00e1c giao di\u1ec7n m\u1ea1ng v\u00e0 ch\u00fang s\u1ebd tr\u1edf th\u00e0nh t\u00edn hi\u1ec7u nhi\u1ec5u c\u1ea3m \u1ee9ng t\u1eeb m\u1edf ra th\u1ebf gi\u1edbi b\u00ean ngo\u00e0i, \u0111\u1ea9y nhi\u1ec5u trong bo m\u1ea1ch ra b\u00ean ngo\u00e0i. N\u00f3i chung, m\u1ed9tM\u1eb7t \u0111\u1ea5t \u1ed5 c\u1eafm ri\u00eang bi\u1ec7t s\u1ebd \u0111\u01b0\u1ee3c c\u1eaft \u0111\u1ed9c l\u1eadp v\u00e0 k\u1ebft n\u1ed1i v\u1edbi m\u1eb7t \u0111\u1ea5t t\u00edn hi\u1ec7u d\u1eef li\u1ec7u s\u1ebd \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i b\u1eb1ng d\u00e2y m\u1ecfng, c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i n\u1ed1i ti\u1ebfp v\u1edbi bus 0 ohm ho\u1eb7c \u0111i\u1ec7n tr\u1edf c\u00f3 gi\u00e1 tr\u1ecb \u0111i\u1ec7n tr\u1edf nh\u1ecf. D\u00e2y m\u1ecfng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ng\u0103n ti\u1ebfng \u1ed3n c\u1ee7a t\u00edn hi\u1ec7u m\u1eb7t \u0111\u1ea5t \u0111i qua m\u1eb7t \u0111\u1ea5t giao di\u1ec7n. T\u01b0\u01a1ng t\u1ef1, b\u1ed9 l\u1ecdc n\u1ed1i \u0111\u1ea5t v\u00e0 ngu\u1ed3n \u0111i\u1ec7n giao di\u1ec7n c\u0169ng ph\u1ea3i \u0111\u01b0\u1ee3c xem x\u00e9t c\u1ea9n th\u1eadn.<\/p>\n
L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 n\u1ed1i \u0111\u1ea5t l\u1edbp che ch\u1eafn trong c\u00e1p b\u1eb1ng l\u1edbp che ch\u1eafn?<\/p>\n
L\u1edbp che ch\u1eafn c\u1ee7a c\u1eb7p xo\u1eafn \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 c\u1ea7n \u0111\u01b0\u1ee3c nh\u1eadn tr\u00ean m\u1eb7t \u0111\u1ea5t \u1ed5 c\u1eafm c\u1ee7a bo m\u1ea1ch \u0111\u00f4i xo\u1eafn, kh\u00f4ng ph\u1ea3i tr\u00ean m\u1eb7t \u0111\u1ea5t t\u00edn hi\u1ec7u d\u1eef li\u1ec7u. \u0110i\u1ec1u n\u00e0y l\u00e0 do c\u00f3 nhi\u1ec1u nhi\u1ec5u kh\u00e1c nhau tr\u00ean m\u1eb7t \u0111\u1ea5t t\u00edn hi\u1ec7u d\u1eef li\u1ec7u. N\u1ebfu l\u1edbp che ch\u1eafn \u0111\u01b0\u1ee3c nh\u1eadn tr\u00ean m\u1eb7t \u0111\u1ea5t t\u00edn hi\u1ec7u d\u1eef li\u1ec7u, \u0111i\u1ec7n \u00e1p l\u00e0m vi\u1ec7c nhi\u1ec5u s\u1ebd \u0111i\u1ec1u khi\u1ec3n d\u00f2ng \u0111i\u1ec7n ch\u1ebf \u0111\u1ed9 chung ra ngo\u00e0i d\u1ecdc theo l\u1edbp che ch\u1eafn. V\u00ec v\u1eady, c\u00e1c lo\u1ea1i c\u00e1p c\u00f3 s\u01a1 \u0111\u1ed3 thi\u1ebft k\u1ebf kh\u00f4ng khoa h\u1ecdc nh\u00ecn chung \u0111\u1ec1u l\u00e0 ngu\u1ed3n ph\u00e1t t\u00edn hi\u1ec7u nhi\u1ec5u c\u00f3 \u0111\u1ed9 nhi\u1ec5u l\u1edbn.<\/p>\n
Cu\u1ed9c s\u1ed1ng con ng\u01b0\u1eddi hi\u1ec7n \u0111\u1ea1i ng\u00e0y c\u00e0ng kh\u00f4ng th\u1ec3 t\u00e1ch r\u1eddi c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed, c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed ph\u1ea3i d\u1ef1a v\u00e0o ngu\u1ed3n \u0111i\u1ec7n \u1ed5n \u0111\u1ecbnh, an to\u00e0n. C\u00f4ng ngh\u1ec7 cung c\u1ea5p \u0111i\u1ec7n chuy\u1ec3n m\u1ea1ch \u0111\u00e3 th\u00e2m nh\u1eadp v\u00e0o l\u0129nh v\u1ef1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed kh\u00e1c nhau. T\u00f4i hy v\u1ecdng b\u1ea1n c\u00f3 th\u1ec3 t\u00ecm th\u1ea5y nh\u1eefng v\u1ea5n \u0111\u1ec1 c\u00f2n b\u1ed1i r\u1ed1i c\u1ee7a m\u00ecnh trong b\u00e0i vi\u1ebft n\u00e0y v\u00e0 nh\u1eadn \u0111\u01b0\u1ee3c c\u00e2u tr\u1ea3 l\u1eddi su\u00f4n s\u1ebb.<\/p>","protected":false},"excerpt":{"rendered":"
In power supply design, safety is often the first, and so is switching power supply. Grounding can protect the personal safety of users and ensure the normal operation of power equipment. What is a suitable grounding method for switching power supply? What are the common grounding symbols? This paper will introduce the grounding problem of… Ti\u1ebfp t\u1ee5c \u0111\u1ecdc T\u1ea1i sao n\u00ean n\u1ed1i \u0111\u1ea5t ngu\u1ed3n \u0111i\u1ec7n chuy\u1ec3n m\u1ea1ch?<\/span><\/a><\/p>","protected":false},"author":1,"featured_media":2867,"parent":0,"menu_order":435,"comment_status":"open","ping_status":"open","template":"","format":"standard","meta":{"_acf_changed":false,"_joinchat":[],"footnotes":""},"news_category":[149,148],"class_list":["post-3752","news","type-news","status-publish","format-standard","has-post-thumbnail","hentry","news_category-blog","news_category-industry-news","entry"],"acf":[],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/www.wehopower.com\/vi\/wp-json\/wp\/v2\/news\/3752","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wehopower.com\/vi\/wp-json\/wp\/v2\/news"}],"about":[{"href":"https:\/\/www.wehopower.com\/vi\/wp-json\/wp\/v2\/types\/news"}],"author":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/vi\/wp-json\/wp\/v2\/comments?post=3752"}],"version-history":[{"count":0,"href":"https:\/\/www.wehopower.com\/vi\/wp-json\/wp\/v2\/news\/3752\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/vi\/wp-json\/wp\/v2\/media\/2867"}],"wp:attachment":[{"href":"https:\/\/www.wehopower.com\/vi\/wp-json\/wp\/v2\/media?parent=3752"}],"wp:term":[{"taxonomy":"news_category","embeddable":true,"href":"https:\/\/www.wehopower.com\/vi\/wp-json\/wp\/v2\/news_category?post=3752"}],"curies":[{"name":"wp c\u1ee7a t\u00f4i","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}