{"id":5529,"date":"2024-12-16T17:27:58","date_gmt":"2024-12-16T09:27:58","guid":{"rendered":"https:\/\/bo-qi.com\/?p=5529"},"modified":"2026-01-04T18:24:01","modified_gmt":"2026-01-04T10:24:01","slug":"is-a-transformer-necessary-in-an-led-driver-circuit-understanding-when-and-why","status":"publish","type":"post","link":"https:\/\/bo-qi.com\/vi\/is-a-transformer-necessary-in-an-led-driver-circuit-understanding-when-and-why\/","title":{"rendered":"C\u00f3 C\u1ea7n Thi\u1ebft Bi\u1ebfn \u00c1p trong M\u1ea1ch Driver LED Kh\u00f4ng? Hi\u1ec3u Khi N\u00e0o v\u00e0 T\u1ea1i Sao"},"content":{"rendered":"

\"c\u00f3 B\u1ed9 bi\u1ebfn \u00e1p
\nS\u1ef1 c\u1ea7n thi\u1ebft c\u1ee7a b\u1ed9 bi\u1ebfn \u00e1p<\/a> trong m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n LED c\u00f3 th\u1ec3 g\u00e2y nh\u1ea7m l\u1eabn. \u0110\u1ed1i v\u1edbi m\u1ed9t s\u1ed1 thi\u1ebft k\u1ebf, n\u00f3 r\u1ea5t quan tr\u1ecdng cho an to\u00e0n v\u00e0 hi\u1ec7u su\u1ea5t. \u0110\u1ed1i v\u1edbi nh\u1eefng thi\u1ebft k\u1ebf kh\u00e1c, n\u00f3 l\u00e0 m\u1ed9t chi ph\u00ed c\u00f3 th\u1ec3 tr\u00e1nh \u0111\u01b0\u1ee3c. H\u00e3y c\u00f9ng kh\u00e1m ph\u00e1 khi n\u00e0o v\u00e0 t\u1ea1i sao b\u1ed9 bi\u1ebfn \u00e1p l\u00e0 c\u1ea7n thi\u1ebft.<\/p>\n

B\u1ed9 bi\u1ebfn \u00e1p kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng c\u1ea7n thi\u1ebft trong m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n LED. Trong khi b\u1ed9 \u0111i\u1ec1u khi\u1ec3n LED c\u00e1ch ly s\u1eed d\u1ee5ng b\u1ed9 bi\u1ebfn \u00e1p \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n v\u00e0 b\u1ea3o v\u1ec7, b\u1ed9 \u0111i\u1ec1u khi\u1ec3n kh\u00f4ng c\u00e1ch ly \u0111\u1ea1t \u0111\u01b0\u1ee3c s\u1ef1 \u0111i\u1ec1u ch\u1ec9nh d\u00f2ng \u0111i\u1ec7n m\u00e0 kh\u00f4ng c\u1ea7n ch\u00fang, gi\u00fap ch\u00fang nh\u1ecf g\u1ecdn v\u00e0 ti\u1ebft ki\u1ec7m chi ph\u00ed h\u01a1n cho c\u00e1c \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3.<\/strong><\/p>\n

Kh\u00f4ng ph\u1ea3i t\u1ea5t c\u1ea3 c\u00e1c m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n LED \u0111\u1ec1u gi\u1ed1ng nhau. M\u1ed9t s\u1ed1 \u01b0u ti\u00ean an to\u00e0n v\u00e0 c\u00e1ch ly, trong khi nh\u1eefng lo\u1ea1i kh\u00e1c nh\u1eafm \u0111\u1ebfn hi\u1ec7u qu\u1ea3 chi ph\u00ed v\u00e0 s\u1ef1 \u0111\u01a1n gi\u1ea3n. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u00fap b\u1ea1n hi\u1ec3u vai tr\u00f2 c\u1ee7a b\u1ed9 bi\u1ebfn \u00e1p trong m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n LED.<\/p>\n

\n

Vai tr\u00f2 c\u1ee7a B\u1ed9 bi\u1ebfn \u00e1p trong M\u1ea1ch \u0111i\u1ec1u khi\u1ec3n LED l\u00e0 g\u00ec?<\/h2>\n

\"m\u1ed9t m\u1ed9t b\u1ed9 bi\u1ebfn \u00e1p tr\u00ean b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n LED<\/p>\n

B\u1ed9 bi\u1ebfn \u00e1p ph\u1ee5c v\u1ee5 hai m\u1ee5c \u0111\u00edch ch\u00ednh trong m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n LED: bi\u1ebfn \u0111\u1ed5i \u0111i\u1ec7n \u00e1p v\u00e0 c\u00e1ch ly \u0111i\u1ec7n. C\u00e1c ch\u1ee9c n\u0103ng n\u00e0y r\u1ea5t quan tr\u1ecdng trong c\u00e1c h\u1ec7 th\u1ed1ng \u0111i\u1ec7n \u00e1p cao \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n v\u00e0 ho\u1ea1t \u0111\u1ed9ng \u0111\u00fang.<\/p>\n

B\u1ed9 bi\u1ebfn \u00e1p \u0111i\u1ec1u ch\u1ec9nh m\u1ee9c \u0111i\u1ec7n \u00e1p v\u00e0 cung c\u1ea5p c\u00e1ch ly \u0111i\u1ec7n \u0111\u1ec3 b\u1ea3o v\u1ec7 m\u1ea1ch v\u00e0 ng\u01b0\u1eddi d\u00f9ng kh\u1ecfi c\u00e1c m\u1ed1i nguy hi\u1ec3m ti\u1ec1m \u1ea9n. N\u00f3 c\u0169ng b\u1ea3o v\u1ec7 c\u00e1c linh ki\u1ec7n nh\u1ea1y c\u1ea3m trong h\u1ec7 th\u1ed1ng \u0111i\u1ec7n \u00e1p cao.<\/strong><\/p>\n

Bi\u1ebfn \u0111\u1ed5i \u0110i\u1ec7n \u00e1p<\/h3>\n

B\u1ed9 bi\u1ebfn \u00e1p thay \u0111\u1ed5i \u0111i\u1ec7n \u00e1p t\u1eeb ngu\u1ed3n \u0111i\u1ec7n \u0111\u1ebfn m\u1ee9c ph\u00f9 h\u1ee3p cho LED. V\u00ed d\u1ee5, n\u00f3 c\u00f3 th\u1ec3 h\u1ea1 \u00e1p ngu\u1ed3n AC 230V xu\u1ed1ng \u0111i\u1ec7n \u00e1p DC th\u1ea5p h\u01a1n cho b\u1ed9 \u0111i\u1ec1u khi\u1ec3n LED.<\/p>\n\n\n\n\n\n\n
Ch\u1ee9c n\u0103ng<\/strong><\/th>\nM\u00f4 T\u1ea3<\/strong><\/th>\n<\/tr>\n<\/thead>\n
\u0110i\u1ec1u Ch\u1ec9nh \u0110i\u1ec7n \u00c1p<\/strong><\/td>\nChuy\u1ec3n \u0111\u1ed5i \u0111i\u1ec7n \u00e1p cao sang m\u1ee9c an to\u00e0n, c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c.<\/td>\n<\/tr>\n
C\u00e1ch ly<\/strong><\/td>\nT\u00e1ch bi\u1ec7t v\u1ec1 \u0111i\u1ec7n gi\u1eefa m\u1ea1ch \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

C\u00e1ch ly \u0110i\u1ec7n<\/h3>\n

C\u00e1ch ly ng\u0103n ch\u1eb7n c\u00e1c s\u1ef1 c\u1ed1 \u0111i\u1ec7n \u00e1p cao \u0111\u1ebfn ng\u01b0\u1eddi d\u00f9ng ho\u1eb7c l\u00e0m h\u1ecfng c\u00e1c linh ki\u1ec7n ph\u00eda sau. \u0110i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng trong c\u00e1c m\u1ea1ch ti\u1ebfp x\u00fac v\u1edbi con ng\u01b0\u1eddi ho\u1eb7c c\u00e1c h\u1ec7 th\u1ed1ng nh\u1ea1y c\u1ea3m nh\u01b0 thi\u1ebft b\u1ecb y t\u1ebf.<\/p>\n

Kh\u00f4ng c\u00f3 b\u1ed9 bi\u1ebfn \u00e1p, vi\u1ec7c \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7 n\u00e0y \u0111\u00f2i h\u1ecfi c\u00e1c ph\u01b0\u01a1ng ph\u00e1p thay th\u1ebf c\u00f3 th\u1ec3 kh\u00f4ng s\u00e1nh \u0111\u01b0\u1ee3c hi\u1ec7u qu\u1ea3 c\u1ee7a b\u1ed9 bi\u1ebfn \u00e1p.<\/p>\n

\n

B\u1ed9 \u0111i\u1ec1u khi\u1ec3n LED C\u00e1ch ly so v\u1edbi Kh\u00f4ng C\u00e1ch ly?<\/h2>\n

\"b\u1ed9 b\u1ed9 \u0111i\u1ec1u khi\u1ec3n LED c\u00e1ch ly so v\u1edbi kh\u00f4ng c\u00e1ch ly<\/p>\n

Hi\u1ec3u s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa b\u1ed9 \u0111i\u1ec1u khi\u1ec3n LED c\u00e1ch ly v\u00e0 kh\u00f4ng c\u00e1ch ly c\u00f3 th\u1ec3 l\u00e0m r\u00f5 li\u1ec7u c\u00f3 c\u1ea7n b\u1ed9 bi\u1ebfn \u00e1p hay kh\u00f4ng.<\/p>\n

B\u1ed9 \u0111i\u1ec1u khi\u1ec3n LED c\u00e1ch ly s\u1eed d\u1ee5ng b\u1ed9 bi\u1ebfn \u00e1p \u0111\u1ec3 cung c\u1ea5p s\u1ef1 t\u00e1ch bi\u1ec7t \u0111i\u1ec7n v\u00e0 b\u1ea3o v\u1ec7 kh\u1ecfi c\u00e1c r\u1ee7i ro \u0111i\u1ec7n \u00e1p cao, trong khi b\u1ed9 \u0111i\u1ec1u khi\u1ec3n kh\u00f4ng c\u00e1ch ly \u0111\u1ea1t \u0111\u01b0\u1ee3c s\u1ef1 nh\u1ecf g\u1ecdn b\u1eb1ng c\u00e1ch lo\u1ea1i b\u1ecf b\u1ed9 bi\u1ebfn \u00e1p.<\/strong><\/p>\n

B\u1ed9 \u0111i\u1ec1u khi\u1ec3n LED C\u00e1ch ly<\/h3>\n

B\u1ed9 \u0111i\u1ec1u khi\u1ec3n c\u00e1ch ly<\/a> d\u1ef1a v\u00e0o b\u1ed9 bi\u1ebfn \u00e1p \u0111\u1ec3 t\u00e1ch bi\u1ec7t v\u1ec1 \u0111i\u1ec7n gi\u1eefa ph\u00eda \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra. Thi\u1ebft k\u1ebf n\u00e0y \u0111\u1ea3m b\u1ea3o an to\u00e0n v\u00e0 tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh nghi\u00eam ng\u1eb7t, khi\u1ebfn ch\u00fang ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng su\u1ea5t cao v\u00e0 r\u1ee7i ro cao.<\/p>\n\n\n\n\n\n\n
T\u00ednh N\u0103ng<\/strong><\/th>\nM\u00f4 T\u1ea3<\/strong><\/th>\n<\/tr>\n<\/thead>\n
An to\u00e0n<\/strong><\/td>\nC\u00e1ch ly \u0111i\u1ec7n gi\u1ea3m thi\u1ec3u r\u1ee7i ro.<\/td>\n<\/tr>\n
C\u00e1c \u1ee9ng d\u1ee5ng<\/strong><\/td>\nChi\u1ebfu s\u00e1ng c\u00f4ng su\u1ea5t cao, h\u1ec7 th\u1ed1ng c\u00f4ng nghi\u1ec7p.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

B\u1ed9 \u0111i\u1ec1u khi\u1ec3n LED Kh\u00f4ng C\u00e1ch ly<\/h3>\n

B\u1ed9 \u0111i\u1ec1u khi\u1ec3n kh\u00f4ng c\u00e1ch ly<\/a> lo\u1ea1i b\u1ecf b\u1ed9 bi\u1ebfn \u00e1p, thay v\u00e0o \u0111\u00f3 d\u1ef1a v\u00e0o c\u00e1c k\u1ebft n\u1ed1i \u0111i\u1ec7n tr\u1ef1c ti\u1ebfp. C\u00e1c b\u1ed9 \u0111i\u1ec1u khi\u1ec3n n\u00e0y nh\u1ecf g\u1ecdn v\u00e0 ti\u1ebft ki\u1ec7m chi ph\u00ed h\u01a1n nh\u01b0ng thi\u1ebfu c\u00e1c l\u1ee3i \u00edch an to\u00e0n c\u1ee7a c\u00e1ch ly.<\/p>\n\n\n\n\n\n\n
T\u00ednh N\u0103ng<\/strong><\/th>\nM\u00f4 T\u1ea3<\/strong><\/th>\n<\/tr>\n<\/thead>\n
Thi\u1ebft k\u1ebf Nh\u1ecf g\u1ecdn<\/strong><\/td>\nLo\u1ea1i b\u1ecf b\u1ed9 bi\u1ebfn \u00e1p c\u1ed3ng k\u1ec1nh.<\/td>\n<\/tr>\n
C\u00e1c \u1ee9ng d\u1ee5ng<\/strong><\/td>\nC\u00e1c d\u1ef1 \u00e1n \u0111i\u1ec7n \u00e1p th\u1ea5p, nh\u1ea1y c\u1ea3m v\u1ec1 chi ph\u00ed.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
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Khi n\u00e0o B\u1ed9 bi\u1ebfn \u00e1p l\u00e0 C\u1ea7n thi\u1ebft?<\/h2>\n

\"\"<\/p>\n

M\u1ed9t s\u1ed1 t\u00ecnh hu\u1ed1ng \u0111\u00f2i h\u1ecfi ph\u1ea3i c\u00f3 b\u1ed9 bi\u1ebfn \u00e1p trong m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n LED, \u0111\u1eb7c bi\u1ec7t khi an to\u00e0n v\u00e0 tu\u00e2n th\u1ee7 l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng.<\/p>\n

B\u1ed9 bi\u1ebfn \u00e1p l\u00e0 c\u1ea7n thi\u1ebft trong c\u00e1c \u1ee9ng d\u1ee5ng \u0111i\u1ec7n \u00e1p cao ho\u1eb7c m\u00f4i tr\u01b0\u1eddng n\u01a1i an to\u00e0n, c\u00e1ch ly v\u00e0 tu\u00e2n th\u1ee7 quy \u0111\u1ecbnh l\u00e0 b\u1eaft bu\u1ed9c.<\/strong><\/p>\n

C\u00e1c \u1ee8ng d\u1ee5ng \u0110i\u1ec7n \u00e1p Cao<\/h3>\n

Trong c\u00e1c thi\u1ebft l\u1eadp \u0111i\u1ec7n \u00e1p cao, b\u1ed9 bi\u1ebfn \u00e1p h\u1ea1 \u0111i\u1ec7n \u00e1p v\u00e0 cung c\u1ea5p c\u00e1ch ly. \u0110i\u1ec1u n\u00e0y ng\u0103n ng\u1eeba s\u1ed1c \u0111i\u1ec7n v\u00e0 b\u1ea3o v\u1ec7 c\u00e1c thi\u1ebft b\u1ecb nh\u1ea1y c\u1ea3m.<\/p>\n

C\u00e1c \u1ee8ng d\u1ee5ng Y\u00eau c\u1ea7u An to\u00e0n cho Ng\u01b0\u1eddi d\u00f9ng<\/h3>\n

Khi ng\u01b0\u1eddi d\u00f9ng t\u01b0\u01a1ng t\u00e1c tr\u1ef1c ti\u1ebfp v\u1edbi \u0111\u00e8n chi\u1ebfu s\u00e1ng, ch\u1eb3ng h\u1ea1n nh\u01b0 trong c\u00e1c s\u1ea3n ph\u1ea9m ti\u00eau d\u00f9ng ho\u1eb7c y t\u1ebf, c\u00e1ch ly tr\u1edf n\u00ean thi\u1ebft y\u1ebfu \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n an to\u00e0n.<\/p>\n\n\n\n\n\n\n
Tr\u01b0\u1eddng H\u1ee3p S\u1eed D\u1ee5ng<\/strong><\/th>\nV\u00ed d\u1ee5<\/strong><\/th>\n<\/tr>\n<\/thead>\n
Thi\u1ebft b\u1ecb Y t\u1ebf<\/strong><\/td>\nB\u1ea3o v\u1ec7 thi\u1ebft b\u1ecb nh\u1ea1y c\u1ea3m v\u00e0 b\u1ec7nh nh\u00e2n.<\/td>\n<\/tr>\n
H\u1ec7 th\u1ed1ng C\u00f4ng nghi\u1ec7p<\/strong><\/td>\n\u0110\u1ea3m b\u1ea3o b\u1ea3o v\u1ec7 m\u1ea1nh m\u1ebd v\u00e0 \u0111\u1ed9 tin c\u1eady.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
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Khi n\u00e0o B\u1ea1n C\u00f3 th\u1ec3 B\u1ecf qua B\u1ed9 bi\u1ebfn \u00e1p trong M\u1ea1ch \u0111i\u1ec1u khi\u1ec3n LED?<\/h2>\n

Trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p, vi\u1ec7c b\u1ecf qua b\u1ed9 bi\u1ebfn \u00e1p l\u00e0 kh\u1ea3 thi v\u00e0 c\u00f3 l\u1ee3i. \u0110i\u1ec1u n\u00e0y ph\u1ed5 bi\u1ebfn trong c\u00e1c h\u1ec7 th\u1ed1ng \u0111i\u1ec7n \u00e1p th\u1ea5p n\u01a1i r\u1ee7i ro c\u00e1ch \u0111i\u1ec7n v\u00e0 an to\u00e0n l\u00e0 t\u1ed1i thi\u1ec3u.<\/p>\n

C\u00e1c thi\u1ebft k\u1ebf kh\u00f4ng c\u00f3 b\u1ed9 bi\u1ebfn \u00e1p ho\u1ea1t \u0111\u1ed9ng t\u1ed1t nh\u1ea5t trong m\u00f4i tr\u01b0\u1eddng \u0111i\u1ec7n \u00e1p th\u1ea5p, c\u00e1ch \u0111i\u1ec7n t\u1ed1t ho\u1eb7c c\u00e1c d\u1ef1 \u00e1n c\u00f3 r\u00e0ng bu\u1ed9c chi ph\u00ed ch\u1eb7t ch\u1ebd.<\/strong><\/p>\n

C\u00e1c \u1ee8ng d\u1ee5ng \u0110i\u1ec7n \u00e1p Th\u1ea5p<\/h3>\n

N\u1ebfu h\u1ec7 th\u1ed1ng LED ho\u1ea1t \u0111\u1ed9ng \u1edf \u0111i\u1ec7n \u00e1p th\u1ea5p (v\u00ed d\u1ee5: d\u1ea3i LED), r\u1ee7i ro gi\u1ea3m \u0111\u00e1ng k\u1ec3. C\u00e1ch \u0111i\u1ec7n t\u1ed1t c\u00f3 th\u1ec3 t\u0103ng c\u01b0\u1eddng th\u00eam an to\u00e0n.<\/p>\n

C\u00e1c Thi\u1ebft k\u1ebf Nh\u1ea1y c\u1ea3m v\u1ec1 Chi ph\u00ed<\/h3>\n

C\u00e1c tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n kh\u00f4ng c\u00e1ch ly nh\u1ecf g\u1ecdn l\u00e0 l\u00fd t\u01b0\u1edfng cho c\u00e1c d\u1ef1 \u00e1n t\u1eadp trung v\u00e0o chi ph\u00ed nh\u01b0 b\u00f3ng \u0111\u00e8n LED ho\u1eb7c \u0111\u00e8n d\u1ea3i trong m\u00f4i tr\u01b0\u1eddng \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t.<\/p>\n\n\n\n\n\n\n
K\u1ecbch b\u1ea3n<\/strong><\/th>\nV\u00ed d\u1ee5<\/strong><\/th>\n<\/tr>\n<\/thead>\n
D\u1ea3i LED<\/strong><\/td>\nChi\u1ebfu s\u00e1ng t\u1ee7, chi\u1ebfu s\u00e1ng tr\u01b0ng b\u00e0y.<\/td>\n<\/tr>\n
Thi\u1ebft b\u1ecb ti\u00eau d\u00f9ng<\/strong><\/td>\nB\u00f3ng \u0111\u00e8n LED gia d\u1ee5ng c\u00f3 c\u00f4ng su\u1ea5t th\u1ea5p.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n

\u01afu \u0111i\u1ec3m v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n LED d\u1ef1a tr\u00ean m\u00e1y bi\u1ebfn \u00e1p<\/h2>\n

Vi\u1ec7c s\u1eed d\u1ee5ng m\u00e1y bi\u1ebfn \u00e1p trong m\u1ea1ch tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n LED c\u00f3 nh\u1eefng \u01b0u v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m ri\u00eang, t\u00f9y thu\u1ed9c v\u00e0o \u01b0u ti\u00ean thi\u1ebft k\u1ebf.<\/p>\n

M\u00e1y bi\u1ebfn \u00e1p t\u0103ng c\u01b0\u1eddng an to\u00e0n v\u00e0 tu\u00e2n th\u1ee7 nh\u01b0ng l\u00e0m t\u0103ng k\u00edch th\u01b0\u1edbc, chi ph\u00ed v\u00e0 \u0111\u1ed9 ph\u1ee9c t\u1ea1p trong m\u1ea1ch tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n LED.<\/strong><\/p>\n

\u01afu \u0111i\u1ec3m<\/h3>\n
    \n
  1. \u0110\u1ea3m b\u1ea3o c\u00e1ch ly \u0111i\u1ec7n v\u00e0 an to\u00e0n cho ng\u01b0\u1eddi d\u00f9ng. <\/li>\n
  2. Tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n an to\u00e0n trong m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p v\u00e0 y t\u1ebf. <\/li>\n
  3. X\u1eed l\u00fd t\u1ea3i c\u00f4ng su\u1ea5t cao hi\u1ec7u qu\u1ea3. <\/li>\n<\/ol>\n

    Nh\u01b0\u1ee3c \u0111i\u1ec3m<\/h3>\n
      \n
    1. C\u1ed3ng k\u1ec1nh v\u00e0 l\u00e0m t\u0103ng k\u00edch th\u01b0\u1edbc t\u1ed5ng th\u1ec3 c\u1ee7a tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n. <\/li>\n
    2. T\u0103ng chi ph\u00ed, khi\u1ebfn n\u00f3 k\u00e9m h\u1ea5p d\u1eabn \u0111\u1ed1i v\u1edbi c\u00e1c thi\u1ebft k\u1ebf ti\u1ebft ki\u1ec7m. <\/li>\n
    3. M\u1ea1ch ph\u1ee9c t\u1ea1p c\u00f3 th\u1ec3 y\u00eau c\u1ea7u chuy\u00ean m\u00f4n cao.<\/li>\n<\/ol>\n\n\n\n\n\n\n\n
      Kh\u00eda c\u1ea1nh<\/strong><\/th>\nTr\u00ecnh \u0111i\u1ec1u khi\u1ec3n d\u1ef1a tr\u00ean m\u00e1y bi\u1ebfn \u00e1p<\/strong><\/th>\n<\/tr>\n<\/thead>\n
      An to\u00e0n<\/strong><\/td>\nXu\u1ea5t s\u1eafc<\/td>\n<\/tr>\n
      K\u00edch Th\u01b0\u1edbc<\/strong><\/td>\nL\u1edbn h\u01a1n<\/td>\n<\/tr>\n
      Chi ph\u00ed<\/strong><\/td>\nCao h\u01a1n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
      \n

      C\u00e2n nh\u1eafc k\u1ef9 thu\u1eadt khi thi\u1ebft k\u1ebf m\u1ea1ch kh\u00f4ng c\u00f3 m\u00e1y bi\u1ebfn \u00e1p<\/h2>\n

      \"m\u1ea1ch m\u1ea1ch kh\u00f4ng c\u00f3 m\u00e1y bi\u1ebfn \u00e1p<\/p>\n

      Thi\u1ebft k\u1ebf m\u1ea1ch LED kh\u00f4ng c\u00f3 m\u00e1y bi\u1ebfn \u00e1p \u0111\u00f2i h\u1ecfi s\u1ef1 ch\u00fa \u00fd c\u1ea9n th\u1eadn \u0111\u1ebfn an to\u00e0n, hi\u1ec7u su\u1ea5t v\u00e0 \u0111\u1ed9 tin c\u1eady.<\/p>\n

      Kh\u00f4ng c\u00f3 m\u00e1y bi\u1ebfn \u00e1p, vi\u1ec7c duy tr\u00ec an to\u00e0n bao g\u1ed3m c\u00e1ch \u0111i\u1ec7n c\u1ea9n th\u1eadn, \u0111i\u1ec1u ch\u1ec9nh d\u00f2ng \u0111i\u1ec7n v\u00e0 s\u1eed d\u1ee5ng c\u00e1c linh ki\u1ec7n thay th\u1ebf \u0111\u1ec3 b\u1ea3o v\u1ec7.<\/strong><\/p>\n

      \u0110\u1ea3m b\u1ea3o an to\u00e0n \u0111i\u1ec7n<\/h3>\n
        \n
      1. S\u1eed d\u1ee5ng c\u00e1ch \u0111i\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng cao \u0111\u1ec3 b\u1ea3o v\u1ec7 ch\u1ed1ng l\u1ea1i c\u00e1c l\u1ed7i. <\/li>\n
      2. Tri\u1ec3n khai c\u00e1c linh ki\u1ec7n b\u1ea3o v\u1ec7 ch\u1ed1ng s\u1ed1c \u0111\u1ec3 ng\u0103n ng\u1eeba h\u01b0 h\u1ecfng. <\/li>\n<\/ol>\n

        Thay th\u1ebf cho m\u00e1y bi\u1ebfn \u00e1p<\/h3>\n

        C\u00e1c linh ki\u1ec7n nh\u01b0 cu\u1ed9n c\u1ea3m v\u00e0 t\u1ee5 \u0111i\u1ec7n c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh d\u00f2ng \u0111i\u1ec7n v\u00e0 l\u00e0m m\u1ecbn cung c\u1ea5p \u0111i\u1ec7n. Ch\u00fang cung c\u1ea5p gi\u1ea3i ph\u00e1p nh\u1ecf g\u1ecdn h\u01a1n nh\u01b0ng y\u00eau c\u1ea7u thi\u1ebft k\u1ebf ch\u00ednh x\u00e1c.<\/p>\n

        \n

        V\u00ed d\u1ee5 th\u1ef1c t\u1ebf v\u00e0 \u1ee9ng d\u1ee5ng<\/h2>\n

        \"chi\u1ebfu chi\u1ebfu s\u00e1ng c\u00f4ng nghi\u1ec7p<\/p>\n

        C\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf minh h\u1ecda s\u1ef1 \u0111\u00e1nh \u0111\u1ed5i gi\u1eefa vi\u1ec7c s\u1eed d\u1ee5ng m\u00e1y bi\u1ebfn \u00e1p v\u00e0 b\u1ecf qua ch\u00fang.<\/p>\n

        H\u1ec7 th\u1ed1ng LED c\u00f3 m\u00e1y bi\u1ebfn \u00e1p ph\u1ed5 bi\u1ebfn trong c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng su\u1ea5t cao, trong khi thi\u1ebft k\u1ebf kh\u00f4ng c\u00f3 m\u00e1y bi\u1ebfn \u00e1p ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c thi\u1ebft b\u1ecb c\u00f4ng su\u1ea5t th\u1ea5p, nh\u1ecf g\u1ecdn.<\/strong><\/p>\n

        C\u00f3 m\u00e1y bi\u1ebfn \u00e1p<\/h3>\n
          \n
        • Chi\u1ebfu s\u00e1ng c\u00f4ng nghi\u1ec7p. <\/li>\n
        • H\u1ec7 th\u1ed1ng LED c\u1ea5p y t\u1ebf. <\/li>\n<\/ul>\n

          Kh\u00f4ng c\u00f3 m\u00e1y bi\u1ebfn \u00e1p<\/h3>\n
            \n
          • B\u00f3ng \u0111\u00e8n LED cho s\u1eed d\u1ee5ng gia \u0111\u00ecnh. <\/li>\n
          • Chi\u1ebfu s\u00e1ng t\u1ee7 v\u00e0 d\u1ea3i LED.<\/li>\n<\/ul>\n\n\n\n\n\n\n
            \u1ee8ng d\u1ee5ng<\/strong><\/th>\nL\u1ef1a ch\u1ecdn thi\u1ebft k\u1ebf<\/strong><\/th>\n<\/tr>\n<\/thead>\n
            C\u00f4ng nghi\u1ec7p<\/strong><\/td>\nD\u1ef1a tr\u00ean m\u00e1y bi\u1ebfn \u00e1p<\/td>\n<\/tr>\n
            Thi\u1ebft b\u1ecb ti\u00eau d\u00f9ng<\/strong><\/td>\nKh\u00f4ng c\u00f3 m\u00e1y bi\u1ebfn \u00e1p<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
            \n

            Ph\u1ea7n k\u1ebft lu\u1eadn<\/h2>\n

            Vi\u1ec7c m\u00e1y bi\u1ebfn \u00e1p c\u00f3 c\u1ea7n thi\u1ebft trong m\u1ea1ch tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n LED hay kh\u00f4ng ph\u1ee5 thu\u1ed9c v\u00e0o an to\u00e0n, m\u1ee9c \u0111i\u1ec7n \u00e1p v\u00e0 nhu c\u1ea7u \u1ee9ng d\u1ee5ng. Trong khi m\u00e1y bi\u1ebfn \u00e1p cung c\u1ea5p b\u1ea3o v\u1ec7 m\u1ea1nh m\u1ebd, thi\u1ebft k\u1ebf kh\u00f4ng c\u00f3 m\u00e1y bi\u1ebfn \u00e1p mang l\u1ea1i s\u1ef1 nh\u1ecf g\u1ecdn v\u00e0 hi\u1ec7u qu\u1ea3 chi ph\u00ed cho c\u00e1c k\u1ecbch b\u1ea3n c\u1ee5 th\u1ec3.<\/p>","protected":false},"excerpt":{"rendered":"

            Transformers The need for a transformer in an LED driver circuit can be confusing. For some designs, it is crucial for safety and performance. For others, it is an avoidable cost. Let’s explore when and why transformers are necessary. A transformer is not always necessary in an LED driver circuit. While isolated LED drivers use […]<\/p>\n","protected":false},"author":1,"featured_media":5540,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"none","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"both","_seopress_redirections_param":"","_seopress_redirections_type":301,"_seopress_analysis_target_kw":"","_seopress_news_disabled":"","_seopress_video_disabled":"","_seopress_video":[],"_seopress_pro_schemas_manual":[],"_seopress_pro_rich_snippets_disable_all":"","_seopress_pro_rich_snippets_disable":[],"_seopress_pro_schemas":[],"footnotes":""},"categories":[1,36],"tags":[],"class_list":{"0":"post-5529","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-blog","8":"category-led-driver"},"_links":{"self":[{"href":"https:\/\/bo-qi.com\/vi\/wp-json\/wp\/v2\/posts\/5529","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bo-qi.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bo-qi.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bo-qi.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bo-qi.com\/vi\/wp-json\/wp\/v2\/comments?post=5529"}],"version-history":[{"count":0,"href":"https:\/\/bo-qi.com\/vi\/wp-json\/wp\/v2\/posts\/5529\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bo-qi.com\/vi\/wp-json\/wp\/v2\/media\/5540"}],"wp:attachment":[{"href":"https:\/\/bo-qi.com\/vi\/wp-json\/wp\/v2\/media?parent=5529"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bo-qi.com\/vi\/wp-json\/wp\/v2\/categories?post=5529"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bo-qi.com\/vi\/wp-json\/wp\/v2\/tags?post=5529"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}