{"id":1909,"date":"2026-10-01T00:18:51","date_gmt":"2026-10-01T00:18:51","guid":{"rendered":"https:\/\/ritoks.com\/?p=1909"},"modified":"2026-10-06T01:09:08","modified_gmt":"2026-10-06T01:09:08","slug":"scr-module-heatsink-selection-thermal-evidence","status":"publish","type":"post","link":"https:\/\/ritoks.com\/vi\/scr-module-heatsink-selection-thermal-evidence\/","title":{"rendered":"L\u1ef1a ch\u1ecdn m\u00f4-\u0111un SCR v\u00e0 b\u1ed9 t\u1ea3n nhi\u1ec7t: C\u1ea7n c\u00f3 b\u1eb1ng ch\u1ee9ng v\u1ec1 nhi\u1ec7t"},"content":{"rendered":"

D\u00f2ng \u0111i\u1ec7n \u0111\u1ecbnh m\u1ee9c c\u1ee7a m\u00f4-\u0111un SCR kh\u00f4ng quy\u1ebft \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc c\u1ee7a b\u1ed9 t\u1ea3n nhi\u1ec7t. Quy\u1ebft \u0111\u1ecbnh v\u1ec1 thi\u1ebft k\u1ebf t\u1ea3n nhi\u1ec7t ph\u1ee5 thu\u1ed9c v\u00e0o t\u1ed5n th\u1ea5t nhi\u1ec7t trong chu tr\u00ecnh ho\u1ea1t \u0111\u1ed9ng th\u1ef1c t\u1ebf, nhi\u1ec7t \u0111\u1ed9 m\u1ed1i n\u1ed1i cho ph\u00e9p, c\u00e1c \u0111\u01b0\u1eddng d\u1eabn nhi\u1ec7t t\u1eeb m\u1ed1i n\u1ed1i \u0111\u1ebfn v\u1ecf v\u00e0 t\u1ea1i c\u00e1c \u0111i\u1ec3m ti\u1ebfp x\u00fac, \u0111i\u1ec1u ki\u1ec7n l\u00e0m m\u00e1t c\u0169ng nh\u01b0 c\u00e1ch l\u1eafp \u0111\u1eb7t m\u00f4-\u0111un. M\u1ed9t b\u00e1o gi\u00e1 cho m\u00f4-\u0111un k\u00e8m theo m\u1ed9t thanh nh\u00f4m \u0111\u00f9n c\u00f3 k\u00edch th\u01b0\u1edbc l\u1edbn tr\u00ean b\u1ec1 m\u1eb7t kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t thi\u1ebft k\u1ebf t\u1ea3n nhi\u1ec7t ho\u00e0n ch\u1ec9nh.<\/p>\n

H\u01b0\u1edbng d\u1eabn n\u00e0y tr\u00ecnh b\u00e0y c\u00e1c th\u00f4ng tin c\u1ea7n thu th\u1eadp tr\u01b0\u1edbc khi l\u1ef1a ch\u1ecdn b\u1ed9 t\u1ea3n nhi\u1ec7t cho m\u00f4-\u0111un thyristor. H\u01b0\u1edbng d\u1eabn t\u1eadp trung v\u00e0o c\u00e1c th\u00f4ng s\u1ed1 \u0111\u1ea7u v\u00e0o, ph\u1ea1m vi t\u00ednh to\u00e1n v\u00e0 qu\u00e1 tr\u00ecnh ki\u1ec3m ch\u1ee9ng, ch\u1ee9 kh\u00f4ng nh\u1eb1m quy \u0111\u1ecbnh gi\u00e1 tr\u1ecb \u0111i\u1ec7n tr\u1edf nhi\u1ec7t cho m\u1ed9t m\u1ea1ch \u0111i\u1ec7n ch\u01b0a bi\u1ebft. M\u00e3 \u0111\u1eb7t h\u00e0ng ch\u00ednh x\u00e1c c\u1ee7a SCR v\u00e0 c\u00e1c d\u1ea1ng s\u00f3ng \u1ee9ng d\u1ee5ng v\u1eabn l\u00e0 nh\u1eefng y\u1ebfu t\u1ed1 thi\u1ebft y\u1ebfu.<\/p>\n

B\u1eaft \u0111\u1ea7u v\u1edbi d\u1ea1ng s\u00f3ng \u1ee9ng d\u1ee5ng<\/h2>\n

Ghi l\u1ea1i c\u1ea5u tr\u00fac m\u1ea1ch v\u00e0 ch\u1ee9c n\u0103ng c\u1ee7a t\u1eebng thyristor: ch\u1ec9nh l\u01b0u c\u00f3 \u0111i\u1ec1u khi\u1ec3n, \u0111i\u1ec1u khi\u1ec3n c\u00f4ng su\u1ea5t xoay chi\u1ec1u, kh\u1edfi \u0111\u1ed9ng m\u1ec1m ho\u1eb7c ch\u1ee9c n\u0103ng kh\u00e1c. L\u01b0u \u00fd xem m\u00f4-\u0111un \u0111\u00f3 ch\u1ee9a m\u1ed9t thi\u1ebft b\u1ecb duy nh\u1ea5t, c\u1ea5u h\u00ecnh k\u00e9p hay m\u1ed9t ki\u1ec3u k\u1ebft n\u1ed1i n\u1ed9i b\u1ed9 kh\u00e1c. C\u00f9ng m\u1ed9t gi\u00e1 tr\u1ecb d\u00f2ng \u0111i\u1ec7n ghi tr\u00ean nh\u00e3n k\u1ef9 thu\u1eadt c\u00f3 th\u1ec3 t\u01b0\u01a1ng \u1ee9ng v\u1edbi th\u1eddi gian d\u1eabn \u0111i\u1ec7n, h\u00ecnh d\u1ea1ng xung v\u00e0 m\u1ee9c sinh nhi\u1ec7t r\u1ea5t kh\u00e1c nhau t\u00f9y theo t\u1eebng m\u1ea1ch.<\/p>\n

Provide the RMS and average current information relevant to the manufacturer’s loss model, together with conduction angle, repetition, duty cycle and overload events. Include the current waveform or a validated simulation when possible. Do not take a sine-wave datasheet test point and treat it as a universal loss figure for a chopped or highly pulsed application.<\/p>\n

C\u1ea7n x\u00e1c \u0111\u1ecbnh ri\u00eang bi\u1ec7t t\u1ea3i li\u00ean t\u1ee5c l\u1edbn nh\u1ea5t v\u00e0 c\u00e1c hi\u1ec7n t\u01b0\u1ee3ng qu\u00e1 \u0111\u1ed9 \u0111\u00e1ng k\u1ec3. Qu\u00e1 tr\u00ecnh kh\u1edfi \u0111\u1ed9ng, d\u00f2ng \u0111i\u1ec7n kh\u1edfi \u0111\u1ed9ng v\u00e0 t\u00ecnh tr\u1ea1ng qu\u00e1 t\u1ea3i trong th\u1eddi gian ng\u1eafn c\u00f3 th\u1ec3 \u0111\u00f2i h\u1ecfi ph\u1ea3i ti\u1ebfn h\u00e0nh \u0111\u00e1nh gi\u00e1 tr\u1edf kh\u00e1ng nhi\u1ec7t trong \u0111i\u1ec1u ki\u1ec7n qu\u00e1 \u0111\u1ed9, trong khi ho\u1ea1t \u0111\u1ed9ng li\u00ean t\u1ee5c c\u1ea7n ph\u00e2n t\u00edch tr\u1ea1ng th\u00e1i \u1ed5n \u0111\u1ecbnh. Kh\u1ed1i l\u01b0\u1ee3ng nhi\u1ec7t c\u1ee7a b\u1ed9 t\u1ea3n nhi\u1ec7t kh\u00f4ng ph\u1ea3i l\u00e0 l\u00fd do \u0111\u1ec3 b\u1ecf qua c\u00e1c xung l\u1eb7p l\u1ea1i; s\u1ef1 l\u1eb7p l\u1ea1i n\u00e0y c\u00f3 th\u1ec3 khi\u1ebfn h\u1ec7 th\u1ed1ng kh\u00f4ng th\u1ec3 quay tr\u1edf l\u1ea1i nhi\u1ec7t \u0111\u1ed9 ban \u0111\u1ea7u.<\/p>\n

X\u00e1c \u0111\u1ecbnh t\u1ed5n th\u1ea5t d\u1ef1a tr\u00ean th\u00f4ng tin t\u1eeb m\u00f4 h\u00ecnh ch\u00ednh x\u00e1c<\/h2>\n

Request the exact model’s on-state voltage or loss parameters and the manufacturer’s recommended calculation method. Where the module has multiple devices, track loss per conducting element and the total heat injected into the shared baseplate. Power loss is an input to thermal analysis; it is not the same as the output power or load rating of the equipment.<\/p>\n

Ki\u1ec3m tra xem b\u1ea3ng th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u00f3 cung c\u1ea5p c\u00e1c \u0111\u01b0\u1eddng cong \u1edf c\u00e1c nhi\u1ec7t \u0111\u1ed9 \u0111i\u1ec3m n\u1ed1i v\u00e0 \u0111i\u1ec1u ki\u1ec7n d\u00f2ng \u0111i\u1ec7n c\u1ee5 th\u1ec3 hay kh\u00f4ng. N\u1ebfu nh\u00e0 cung c\u1ea5p ch\u1ec9 cung c\u1ea5p m\u1ed9t gi\u00e1 tr\u1ecb \u201c\u0111i\u1ec3n h\u00ecnh\u201d duy nh\u1ea5t, h\u00e3y y\u00eau c\u1ea7u h\u1ecd cung c\u1ea5p c\u00e1c \u0111i\u1ec1u ki\u1ec7n t\u01b0\u01a1ng \u1ee9ng v\u00e0 h\u1ecfi xem c\u00f3 gi\u00e1 tr\u1ecb t\u1ed1i \u0111a ho\u1eb7c gi\u00e1 tr\u1ecb thi\u1ebft k\u1ebf hay kh\u00f4ng. N\u00ean ghi nh\u1eadn m\u1ee9c \u0111\u1ed9 kh\u00f4ng ch\u1eafc ch\u1eafn thay v\u00ec \u0111\u01b0a ra nhi\u1ec7t \u0111\u1ed9 t\u1ea3n nhi\u1ec7t ch\u00ednh x\u00e1c d\u1ef1a tr\u00ean d\u1eef li\u1ec7u \u0111i\u1ec3n h\u00ecnh ch\u01b0a \u0111\u01b0\u1ee3c x\u00e1c minh.<\/p>\n

\u0110\u1ed1i v\u1edbi b\u1ed9 ch\u1ec9nh l\u01b0u ho\u1eb7c h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n pha, c\u1ea7n l\u00e0m r\u00f5 c\u1ea3 \u0111\u01b0\u1eddng d\u1eabn d\u1eabn \u0111i\u1ec7n l\u1eabn ph\u1ea7n d\u00f2ng \u0111i\u1ec7n do t\u1eebng thi\u1ebft b\u1ecb ch\u1ecbu tr\u00e1ch nhi\u1ec7m theo th\u1eddi gian. M\u1ed9t m\u00f4-\u0111un SCR k\u00e9p c\u00f3 th\u1ec3 kh\u00f4ng ph\u00e2n chia t\u1ed5n th\u1ea5t \u0111\u1ec1u nhau n\u1ebfu s\u01a1 \u0111\u1ed3 \u0111i\u1ec1u khi\u1ec3n ho\u1eb7c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u1ea1ch kh\u00f4ng \u0111\u1ed1i x\u1ee9ng. M\u00f4 h\u00ecnh nhi\u1ec7t c\u1ea7n ph\u1ea3n \u00e1nh ch\u00ednh x\u00e1c c\u00e1c thi\u1ebft b\u1ecb d\u1eabn \u0111i\u1ec7n th\u1ef1c t\u1ebf v\u00e0, n\u1ebfu c\u1ea7n thi\u1ebft, kho\u1ea3ng c\u00e1ch g\u1ea7n gi\u1eefa c\u00e1c ngu\u1ed3n nhi\u1ec7t kh\u00e1c nhau tr\u00ean c\u00f9ng m\u1ed9t b\u1ed9 t\u1ea3n nhi\u1ec7t.<\/p>\n

\"\u0110\u01b0\u1eddng
Theo d\u00f5i nhi\u1ec7t l\u01b0\u1ee3ng c\u1ee7a SCR t\u1eeb \u0111i\u1ec3m n\u1ed1i qua l\u1edbp giao di\u1ec7n \u0111\u1ebfn kh\u00f4ng kh\u00ed xung quanh.<\/figcaption><\/figure>\n

\u0110\u1ecdc to\u00e0n b\u1ed9 l\u1ed9 tr\u00ecnh truy\u1ec1n nhi\u1ec7t<\/h2>\n

A simplified steady-state path runs from junction to case, case through thermal interface material to heatsink, and heatsink to ambient. Each stage contributes temperature rise under the relevant heat flow. Infineon’s module mounting guidance emphasizes that thermal interface material, application and geometry affect conduction between module and sink. No catalogue heatsink number can compensate for a poorly controlled contact interface.<\/p>\n

Obtain the exact module’s thermal-resistance or transient-impedance data and understand the measurement reference points. \u201cJunction-to-case\u201d is not automatically comparable across different internal configurations or test conventions. The sink supplier’s thermal-resistance figure also has conditions: airflow, orientation, base area and a particular heat-source arrangement may be assumed.<\/p>\n

Check where the equipment’s ambient reference is measured. Air near an SCR bank, inside a crowded cabinet, may be hotter than room air. A fan’s free-air rating is not the airflow through the sink fins once filters, guards and nearby components are installed. In a design review, use the relevant local inlet-air condition rather than the most favorable laboratory ambient.<\/p>\n

Ghi r\u00f5 th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt v\u00e0 quy tr\u00ecnh l\u1eafp \u0111\u1eb7t<\/h2>\n

Thermal compound, pad or factory-applied interface material is part of the designed path. Record which interface is allowed for the exact module, the required surface flatness and cleanliness, and the manufacturer’s placement and fastening sequence. A change of compound or mounting pressure can change contact resistance even if the electrical module and sink are unchanged.<\/p>\n

Ask for specified mounting torque, fastener pattern, electrical clearances and any re-tightening or burn-in instruction. These details should come from the current module installation manual, not from a generic torque chart. Infineon’s power-module documentation explicitly treats mounting as a thermal-performance and reliability issue; RITOKS products require their own exact-model instructions before assembly release.<\/p>\n

C\u1ea7n xem x\u00e9t li\u1ec7u nhi\u1ec1u m\u00f4-\u0111un c\u00f3 chia s\u1ebb chung m\u1ed9t b\u1ed9 t\u1ea3n nhi\u1ec7t hay kh\u00f4ng. S\u1ef1 can thi\u1ec7p c\u01a1 h\u1ecdc, s\u1ef1 lan t\u1ecfa nhi\u1ec7t, c\u00e1ch ly \u0111i\u1ec7n v\u00e0 s\u1ef1 c\u1ea3n tr\u1edf lu\u1ed3ng kh\u00ed c\u00f3 th\u1ec3 l\u00e0m thay \u0111\u1ed5i hi\u1ec7u su\u1ea5t. N\u1ebfu b\u1ed9 t\u1ea3n nhi\u1ec7t \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i \u0111i\u1ec7n v\u1edbi m\u1ed9t ph\u1ea7n c\u1ee7a m\u1ea1ch th\u00f4ng qua \u0111\u1ebf m\u00f4-\u0111un, thi\u1ebft k\u1ebf ph\u1ea3i \u0111\u1ea3m b\u1ea3o c\u00e1c y\u00eau c\u1ea7u v\u1ec1 c\u00e1ch \u0111i\u1ec7n v\u00e0 kho\u1ea3ng c\u00e1ch an to\u00e0n c\u1ea7n thi\u1ebft, thay v\u00ec coi b\u1ed9 t\u1ea3n nhi\u1ec7t ch\u1ec9 l\u00e0 m\u1ed9t chi ti\u1ebft kim lo\u1ea1i v\u00f4 h\u1ea1i.<\/p>\n

So s\u00e1nh hi\u1ec7n t\u01b0\u1ee3ng \u0111\u1ed1i l\u01b0u t\u1ef1 nhi\u00ean v\u00e0 \u0111\u1ed1i l\u01b0u c\u01b0\u1ee1ng b\u1ee9c tr\u00ean c\u1ea5u tr\u00fac l\u1eafp \u0111\u1eb7t<\/h2>\n

S\u1ef1 \u0111\u1ed1i l\u01b0u t\u1ef1 nhi\u00ean ph\u1ee5 thu\u1ed9c r\u1ea5t l\u1edbn v\u00e0o h\u01b0\u1edbng c\u1ee7a c\u00e1c c\u00e1nh t\u1ea3n nhi\u1ec7t, kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c c\u00e1nh v\u00e0 lu\u1ed3ng kh\u00f4ng kh\u00ed \u0111i l\u00ean kh\u00f4ng b\u1ecb c\u1ea3n tr\u1edf. S\u1ef1 \u0111\u1ed1i l\u01b0u c\u01b0\u1ee1ng b\u1ee9c ph\u1ee5 thu\u1ed9c v\u00e0o l\u01b0u l\u01b0\u1ee3ng kh\u00f4ng kh\u00ed \u0111\u01b0\u1ee3c cung c\u1ea5p qua b\u1ed9 trao \u0111\u1ed5i nhi\u1ec7t, ch\u1ee9 kh\u00f4ng ch\u1ec9 ri\u00eang l\u01b0u l\u01b0\u1ee3ng kh\u00f4ng kh\u00ed t\u1ef1 do do qu\u1ea1t t\u1ea1o ra. S\u1ef1 l\u1ef1a ch\u1ecdn n\u00e0y c\u0169ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1c y\u00eau c\u1ea7u v\u1ec1 ti\u1ebfng \u1ed3n, b\u1ee5i, b\u1ed9 l\u1ecdc v\u00e0 b\u1ea3o tr\u00ec. C\u1ea7n x\u00e1c \u0111\u1ecbnh xem t\u1ee7 c\u00f3 th\u1ec3 duy tr\u00ec \u0111\u01b0\u1ee3c l\u01b0u l\u01b0\u1ee3ng kh\u00f4ng kh\u00ed d\u1ef1 ki\u1ebfn trong su\u1ed1t th\u1eddi gian s\u1eed d\u1ee5ng hay kh\u00f4ng.<\/p>\n

Request a sink performance curve or tested thermal resistance under conditions close to the installed arrangement. If the data uses another heat-source footprint, ask the sink supplier how to correct or test it. Infineon’s heatsink-selection guidance stresses that optimization is iterative and that published thermal resistance is conditional on how it was measured.<\/p>\n

D\u1ea3i d\u1ef1 ph\u00f2ng l\u00e0m m\u00e1t c\u1ea7n \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh d\u1ef1a tr\u00ean \u0111\u1ed9 kh\u00f4ng ch\u1eafc ch\u1eafn \u0111\u00e3 t\u00ednh to\u00e1n, c\u00e1c gi\u00e1 tr\u1ecb c\u1ef1c tr\u1ecb c\u1ee7a m\u00f4i tr\u01b0\u1eddng xung quanh v\u00e0 c\u00e1c gi\u1ea3 \u0111\u1ecbnh v\u1ec1 b\u1ea3o tr\u00ec. Vi\u1ec7c thi\u1ebft k\u1ebf b\u1ed9 t\u1ea3n nhi\u1ec7t c\u00f3 c\u00f4ng su\u1ea5t qu\u00e1 l\u1edbn m\u00e0 kh\u00f4ng ki\u1ec3m tra c\u00e1c \u0111i\u1ec3m giao ti\u1ebfp v\u00e0 lu\u1ed3ng kh\u00f4ng kh\u00ed c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn vi\u1ec7c b\u1ecf s\u00f3t \u0111i\u1ec3m ngh\u1ebdn th\u1ef1c t\u1ebf. Ng\u01b0\u1ee3c l\u1ea1i, vi\u1ec7c s\u1eed d\u1ee5ng b\u1ed9 t\u1ea3n nhi\u1ec7t c\u00f3 c\u00f4ng su\u1ea5t nh\u1ecf ch\u1ec9 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ch\u1ea5p nh\u1eadn cho ch\u1ebf \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng gi\u00e1n \u0111o\u1ea1n khi m\u00f4 h\u00ecnh nhi\u1ec7t qu\u00e1 \u0111\u1ed9 v\u00e0 t\u1ea7n su\u1ea5t l\u1eb7p l\u1ea1i \u0111\u00e3 \u0111\u01b0\u1ee3c ghi ch\u00e9p \u0111\u1ea7y \u0111\u1ee7.<\/p>\n

H\u00e3y s\u1eed d\u1ee5ng b\u1ea3ng so s\u00e1nh b\u1eb1ng ch\u1ee9ng nhi\u1ec7t, ch\u1ee9 kh\u00f4ng ph\u1ea3i so s\u00e1nh ch\u1ec9 d\u1ef1a tr\u00ean d\u00f2ng \u0111i\u1ec7n<\/h2>\n
T\u00e0i li\u1ec7u ch\u1ee9ng c\u1ee9<\/th>V\u1eadt t\u01b0 d\u1ef1 \u00e1n<\/th>Nh\u00e0 cung c\u1ea5p x\u00e1c nh\u1eadn<\/th><\/tr><\/thead>
Nhi\u1ec7m v\u1ee5 v\u1ec1 \u0111i\u1ec7n<\/td>D\u1ea1ng s\u00f3ng, ki\u1ec3u d\u1eabn truy\u1ec1n, qu\u00e1 t\u1ea3i<\/td>Ph\u01b0\u01a1ng ph\u00e1p x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c vi\u1ec7c m\u1ea5t thi\u1ebft b\u1ecb<\/td><\/tr>
Gi\u1edbi h\u1ea1n n\u00fat giao<\/td>Ph\u1ea1m vi ho\u1ea1t \u0111\u1ed9ng thi\u1ebft k\u1ebf<\/td>Gi\u1edbi h\u1ea1n nhi\u1ec7t \u0111\u1ed9 theo m\u00f4 h\u00ecnh ch\u00ednh x\u00e1c<\/td><\/tr>
\u0110\u01b0\u1eddng d\u1eabn nhi\u1ec7t b\u00ean trong<\/td>V\u1ecb tr\u00ed \u0111\u1eb7t thi\u1ebft b\u1ecb tr\u00ean b\u1ed3n r\u1eeda<\/td>D\u1eef li\u1ec7u t\u1eeb \u0111i\u1ec3m n\u1ed1i \u0111\u1ebfn v\u1ecf<\/td><\/tr>
Giao di\u1ec7n<\/td>Quy tr\u00ecnh l\u1eafp r\u00e1p<\/td>C\u00e1c lo\u1ea1i TIM \u0111\u01b0\u1ee3c ph\u00e9p s\u1eed d\u1ee5ng v\u00e0 h\u01b0\u1edbng d\u1eabn l\u1eafp \u0111\u1eb7t<\/td><\/tr>
\u0110\u01b0\u1eddng \u0111i t\u1eeb b\u1ed3n r\u1eeda l\u00ean kh\u00f4ng kh\u00ed<\/td>B\u1ed1 tr\u00ed m\u00f4i tr\u01b0\u1eddng xung quanh v\u00e0 lu\u1ed3ng kh\u00f4ng kh\u00ed<\/td>Hi\u1ec7u su\u1ea5t c\u1ee7a b\u1ed3n r\u1eeda trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n li\u00ean quan<\/td><\/tr><\/tbody><\/table><\/figure>\n

\u0110\u1ea3m b\u1ea3o t\u1ea5t c\u1ea3 c\u00e1c th\u00f4ng s\u1ed1 \u0111\u1ea7u v\u00e0o \u0111\u1ec1u \u0111\u01b0\u1ee3c li\u00ean k\u1ebft v\u1edbi phi\u00ean b\u1ea3n b\u1ea3n v\u1ebd v\u00e0 m\u00e3 \u0111\u01a1n h\u00e0ng. B\u1ea5t k\u1ef3 thay \u0111\u1ed5i n\u00e0o v\u1ec1 c\u1ea5u tr\u00fac m\u1ea1ch SCR, g\u00f3i m\u00f4-\u0111un, \u0111\u01b0\u1eddng d\u1eabn kh\u00f4ng kh\u00ed ho\u1eb7c d\u1ea1ng s\u00f3ng \u0111i\u1ec1u khi\u1ec3n \u0111\u1ec1u c\u00f3 th\u1ec3 l\u00e0m cho k\u1ebft qu\u1ea3 t\u00ednh to\u00e1n nhi\u1ec7t ban \u0111\u1ea7u kh\u00f4ng c\u00f2n ch\u00ednh x\u00e1c. B\u1ed9 ph\u1eadn mua s\u1eafm kh\u00f4ng \u0111\u01b0\u1ee3c thay th\u1ebf b\u1eb1ng c\u00e1c m\u00f4-\u0111un \u201ct\u01b0\u01a1ng \u0111\u01b0\u01a1ng\u201d ch\u1ec9 d\u1ef1a tr\u00ean nh\u00e3n ghi d\u00f2ng \u0111i\u1ec7n v\u00e0 \u0111i\u1ec7n \u00e1p n\u1ebfu \u0111\u01b0\u1eddng d\u1eabn nhi\u1ec7t kh\u00e1c nhau.<\/p>\n

\"Danh
L\u1eadp danh s\u00e1ch c\u00e1c t\u00e0i li\u1ec7u c\u1ea7n thi\u1ebft \u0111\u1ec3 x\u00e1c nh\u1eadn t\u1eebng gi\u1ea3 \u0111\u1ecbnh thi\u1ebft k\u1ebf nhi\u1ec7t.<\/figcaption><\/figure>\n

Ki\u1ec3m ch\u1ee9ng b\u1eb1ng c\u00e1ch \u0111o l\u01b0\u1eddng \u1edf m\u1ee9c thu\u1ebf ti\u00eau bi\u1ec3u<\/h2>\n

Calculation screens candidates; installed testing verifies the model. Define the operating cycle, enclosure condition and measurement points before the test. A case or sink temperature reading is meaningful only when its location matches the calculation reference. If direct junction measurement is unavailable, use the manufacturer’s approved method to infer junction temperature from measured values and losses.<\/p>\n

Ki\u1ec3m tra tr\u1ea1ng th\u00e1i t\u1ea3i cao k\u00e9o d\u00e0i c\u0169ng nh\u01b0 b\u1ea5t k\u1ef3 tr\u1ea1ng th\u00e1i qu\u00e1 \u0111\u1ed9 quan tr\u1ecdng ho\u1eb7c tr\u1ea1ng th\u00e1i l\u1eb7p chu k\u1ef3 n\u00e0o. Ghi ch\u00e9p l\u1ea1i t\u1ed1c \u0111\u1ed9 qu\u1ea1t, t\u00ecnh tr\u1ea1ng b\u1ed9 l\u1ecdc, nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng xung quanh v\u00e0 c\u00e1c ngu\u1ed3n nhi\u1ec7t l\u00e2n c\u1eadn. N\u1ebfu nhi\u1ec7t \u0111\u1ed9 \u0111o \u0111\u01b0\u1ee3c kh\u00e1c v\u1edbi d\u1ef1 \u0111o\u00e1n, h\u00e3y ki\u1ec3m tra l\u1ea1i c\u00e1c gi\u1ea3 \u0111\u1ecbnh v\u1ec1 t\u1ed5n th\u1ea5t, \u1ee9ng d\u1ee5ng giao di\u1ec7n, lu\u1ed3ng kh\u00f4ng kh\u00ed v\u00e0 v\u1ecb tr\u00ed c\u1ea3m bi\u1ebfn. Tr\u00e1nh che gi\u1ea5u s\u1ef1 ch\u00eanh l\u1ec7ch b\u1eb1ng c\u00e1ch \u0111i\u1ec1u ch\u1ec9nh m\u1ed9t gi\u00e1 tr\u1ecb \u0111i\u1ec7n tr\u1edf gi\u1ea3 \u0111\u1ecbnh duy nh\u1ea5t m\u00e0 kh\u00f4ng c\u00f3 b\u1eb1ng ch\u1ee9ng c\u1ee5 th\u1ec3.<\/p>\n

C\u1ea7n bao g\u1ed3m c\u00e1c bi\u1ec7n ph\u00e1p ki\u1ec3m so\u00e1t trong qu\u00e1 tr\u00ecnh l\u1eafp r\u00e1p s\u1ea3n xu\u1ea5t. M\u1ed9t m\u1eabu th\u1eed \u0111\u01b0\u1ee3c k\u1ef9 s\u01b0 l\u1eafp r\u00e1p c\u1ea9n th\u1eadn c\u00f3 th\u1ec3 cho k\u1ebft qu\u1ea3 ho\u1ea1t \u0111\u1ed9ng kh\u00e1c so v\u1edbi c\u00e1c s\u1ea3n ph\u1ea9m \u0111\u01b0\u1ee3c l\u1eafp r\u00e1p l\u1eb7p l\u1ea1i n\u1ebfu \u0111\u1ed9 ph\u1ee7 c\u1ee7a h\u1ee3p ch\u1ea5t ho\u1eb7c th\u1ee9 t\u1ef1 si\u1ebft ch\u1eb7t c\u00f3 s\u1ef1 thay \u0111\u1ed5i. C\u1ea7n x\u00e1c \u0111\u1ecbnh c\u00e1c \u0111i\u1ec3m ki\u1ec3m tra ph\u00f9 h\u1ee3p v\u1edbi \u0111i\u1ec1u ki\u1ec7n th\u1ef1c t\u1ebf t\u1ea1i x\u01b0\u1edfng s\u1ea3n xu\u1ea5t, sau \u0111\u00f3 l\u01b0u gi\u1eef quy tr\u00ecnh l\u1eafp r\u00e1p \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c minh c\u00f9ng v\u1edbi h\u1ed3 s\u01a1 s\u1ea3n ph\u1ea9m.<\/p>\n

C\u1ea7n g\u1eedi nh\u1eefng g\u00ec k\u00e8m theo y\u00eau c\u1ea7u v\u1ec1 m\u00f4-\u0111un SCR<\/h2>\n

Vui l\u00f2ng g\u1eedi s\u01a1 \u0111\u1ed3 m\u1ea1ch, d\u1ea1ng s\u00f3ng v\u00e0 chu k\u1ef3 l\u00e0m vi\u1ec7c, \u0111i\u1ec7n \u00e1p ch\u1eb7n y\u00eau c\u1ea7u, c\u00e1c s\u1ef1 c\u1ed1 qu\u00e1 t\u1ea3i c\u00f3 th\u1ec3 x\u1ea3y ra, k\u00edch th\u01b0\u1edbc t\u1ea3n nhi\u1ec7t c\u00f3 s\u1eb5n, \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng xung quanh v\u00e0 lu\u1ed3ng kh\u00f4ng kh\u00ed, c\u00e1ch b\u1ed1 tr\u00ed l\u1eafp \u0111\u1eb7t c\u00f9ng c\u00e1c t\u00e0i li\u1ec7u c\u1ea7n thi\u1ebft. Y\u00eau c\u1ea7u cung c\u1ea5p d\u1eef li\u1ec7u ch\u00ednh x\u00e1c v\u1ec1 t\u1ed5n th\u1ea5t v\u00e0 nhi\u1ec7t \u0111\u1ed9 c\u1ee7a m\u00f4-\u0111un, b\u1ea3n v\u1ebd c\u01a1 kh\u00ed, h\u01b0\u1edbng d\u1eabn giao di\u1ec7n v\u00e0 h\u01b0\u1edbng d\u1eabn l\u1eafp \u0111\u1eb7t. C\u00e1c Lo\u1ea1i m\u00f4-\u0111un SCR\/thyristor<\/a> gi\u00fap x\u00e1c \u0111\u1ecbnh c\u00e1c d\u00f2ng s\u1ea3n ph\u1ea9m; vi\u1ec7c l\u1ef1a ch\u1ecdn v\u1eabn ph\u1ee5 thu\u1ed9c v\u00e0o t\u1eebng m\u1eabu c\u1ee5 th\u1ec3.<\/p>\n

\u0110\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 b\u1ed1i c\u1ea3nh ngu\u1ed3n cung \u1ee9ng, h\u00e3y xem l\u1ea1i D\u00f2ng s\u1ea3n ph\u1ea9m MTA dual-SCR<\/a>, D\u00f2ng s\u1ea3n ph\u1ea9m MTC SCR<\/a> ho\u1eb7c D\u00f2ng s\u1ea3n ph\u1ea9m MTC d\u00f2ng \u0111i\u1ec7n cao<\/a> n\u1ebfu th\u00edch h\u1ee3p. C\u00e1c trang n\u00e0y kh\u00f4ng th\u1ec3 thay th\u1ebf cho c\u00e1c \u0111\u01b0\u1eddng cong t\u1ed5n th\u1ea5t hi\u1ec7n h\u00e0nh hay h\u01b0\u1edbng d\u1eabn l\u1eafp \u0111\u1eb7t. H\u00e3y h\u1ecfi RITOKS<\/a> \u0111\u1ed1i v\u1edbi b\u1ed9 t\u00e0i li\u1ec7u c\u1ee5 th\u1ec3 tr\u01b0\u1edbc khi kh\u00f3a m\u00e3 \u0111\u01a1n h\u00e0ng.<\/p>\n

C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n

C\u00f3 th\u1ec3 ch\u1ecdn b\u1ed9 t\u1ea3n nhi\u1ec7t d\u1ef1a tr\u00ean d\u00f2ng \u0111i\u1ec7n \u0111\u1ecbnh m\u1ee9c c\u1ee7a SCR kh\u00f4ng?<\/h3>\n

Kh\u00f4ng. D\u00f2ng \u0111\u1ecbnh m\u1ee9c hi\u1ec7n t\u1ea1i ch\u1ec9 l\u00e0 m\u1ed9t th\u00f4ng s\u1ed1 m\u00f4 t\u1ea3 thi\u1ebft b\u1ecb. Y\u00eau c\u1ea7u v\u1ec1 nhi\u1ec7t \u0111\u1ed9 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi d\u1ea1ng s\u00f3ng th\u1ef1c t\u1ebf, t\u1ed5n th\u1ea5t, \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng xung quanh, giao di\u1ec7n v\u00e0 h\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t.<\/p>\n

Vi\u1ec7c l\u1eafp th\u00eam qu\u1ea1t c\u00f3 \u0111\u1ea3m b\u1ea3o l\u1ee3i nhu\u1eadn cao h\u01a1n kh\u00f4ng?<\/h3>\n

Ch\u1ec9 khi lu\u1ed3ng kh\u00f4ng kh\u00ed \u0111\u1ee7 m\u1ea1nh ti\u1ebfp x\u00fac v\u1edbi c\u00e1c b\u1ec1 m\u1eb7t c\u00e1nh t\u1ea3n nhi\u1ec7t li\u00ean quan trong \u0111i\u1ec1u ki\u1ec7n l\u1eafp \u0111\u1eb7t th\u1ef1c t\u1ebf. Ki\u1ec3m tra b\u1ed9 l\u1ecdc, c\u00e1c v\u1eadt c\u1ea3n, tr\u1ea1ng th\u00e1i ho\u1ea1t \u0111\u1ed9ng c\u1ee7a qu\u1ea1t v\u00e0 d\u1eef li\u1ec7u hi\u1ec7u su\u1ea5t c\u1ee7a b\u1ed9 t\u1ea3n nhi\u1ec7t.<\/p>\n

B\u1eb1ng ch\u1ee9ng ch\u1ea5p nh\u1eadn cu\u1ed1i c\u00f9ng l\u00e0 g\u00ec?<\/h3>\n

Vi\u1ec7c t\u00ednh to\u00e1n c\u1ee5 th\u1ec3 cho t\u1eebng m\u1eabu s\u1ea3n ph\u1ea9m, ph\u01b0\u01a1ng ph\u00e1p l\u1eafp \u0111\u1eb7t \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t ch\u1eb7t ch\u1ebd v\u00e0 th\u1eed nghi\u1ec7m nhi\u1ec7t \u0111\u1ed9 \u0111\u1ea1i di\u1ec7n khi k\u1ebft h\u1ee3p v\u1edbi nhau s\u1ebd t\u1ea1o n\u00ean m\u1ed9t quy\u1ebft \u0111\u1ecbnh c\u00f3 c\u01a1 s\u1edf v\u1eefng ch\u1eafc. Kh\u00f4ng c\u00f3 t\u00e0i li\u1ec7u n\u00e0o ch\u1ee9ng minh \u0111\u01b0\u1ee3c c\u1ea3 ba y\u1ebfu t\u1ed1 n\u00e0y.<\/p>\n

T\u00f3m l\u1ea1i<\/h2>\n

Tr\u01b0\u1edbc ti\u00ean, h\u00e3y x\u00e1c \u0111\u1ecbnh t\u1ed5n th\u1ea5t \u0111i\u1ec7n, sau \u0111\u00f3 theo d\u00f5i to\u00e0n b\u1ed9 \u0111\u01b0\u1eddng d\u1eabn nhi\u1ec7t v\u00e0 ki\u1ec3m tra c\u1ee5m linh ki\u1ec7n \u0111\u00e3 l\u1eafp \u0111\u1eb7t. B\u1ed9 \u0111\u00f4i m\u00f4-\u0111un SCR v\u00e0 t\u1ea3n nhi\u1ec7t l\u00e0 m\u1ed9t quy\u1ebft \u0111\u1ecbnh v\u1ec1 h\u1ec7 th\u1ed1ng. H\u00e3y gi\u1eef c\u00e1c d\u1eef li\u1ec7u nhi\u1ec7t c\u1ee5 th\u1ec3 c\u1ee7a m\u00f4 h\u00ecnh ch\u01b0a \u0111\u01b0\u1ee3c gi\u1ea3i quy\u1ebft hi\u1ec3n th\u1ecb trong y\u00eau c\u1ea7u b\u00e1o gi\u00e1 (RFQ) thay v\u00ec \u0111i\u1ec1n v\u00e0o \u0111\u00f3 b\u1eb1ng c\u00e1c gi\u1ea3 \u0111\u1ecbnh t\u1eeb danh m\u1ee5c s\u1ea3n ph\u1ea9m. B\u1ea3n v\u1ebd cu\u1ed1i c\u00f9ng c\u1ea7n x\u00e1c \u0111\u1ecbnh m\u00f4-\u0111un, b\u1ed9 t\u1ea3n nhi\u1ec7t, v\u1eadt li\u1ec7u giao di\u1ec7n, h\u01b0\u1edbng lu\u1ed3ng kh\u00ed v\u00e0 c\u00e1c \u0111i\u1ec1u ki\u1ec7n th\u1eed nghi\u1ec7m \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn nh\u01b0 m\u1ed9t c\u1ee5m l\u1eafp r\u00e1p \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t duy nh\u1ea5t.<\/p>\n

T\u00e0i li\u1ec7u tham kh\u1ea3o<\/h2>\n