1124 行
22 KiB
JSON
1124 行
22 KiB
JSON
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[
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45,
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806,
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||
"【A】第三片 74HC595（U33）—— 5 路 EDL_EN"
|
||
],
|
||
[
|
||
45,
|
||
786,
|
||
"级联在 U22 之后：U22.QH'(9) -> U33.SER(14)，网络名 SR_CAS2。整条链变成 24 位，"
|
||
],
|
||
[
|
||
45,
|
||
770,
|
||
"先移入的字节落到 U33。SRCLK / RCLK / OE# 与前两片共用。"
|
||
],
|
||
[
|
||
45,
|
||
754,
|
||
"QA~QE = EDL_EN1~5；QF/QG/QH 备用不接。"
|
||
],
|
||
[
|
||
45,
|
||
738,
|
||
"100k 下拉不放在这里 —— 跟按键 MOS 栅极一样，放在载板上紧挨模拟开关（§8.1 复位安全）。"
|
||
],
|
||
[
|
||
540,
|
||
806,
|
||
"【B】风扇：低边 N-MOS + PWM，5 个风扇并一路（§22.6）"
|
||
],
|
||
[
|
||
540,
|
||
786,
|
||
"Q6 AO3400A 切风扇回流，D2 SS34 做续流 —— 风扇是感性负载，少了它 MOS 会被反峰打穿。"
|
||
],
|
||
[
|
||
540,
|
||
770,
|
||
"FAN_PWM = IO47，FAN_TACH = IO48。5 个 TACH 并联做线或，停一个频率掉约 1/5。"
|
||
],
|
||
[
|
||
540,
|
||
754,
|
||
"TACH 必须分压：低边 PWM 关断时风扇地被抬到 12V，TACH 集电极开路也跟着到 12V。"
|
||
],
|
||
[
|
||
540,
|
||
738,
|
||
"10k 上拉到 12V + 10k/3.3k 分压 -> IO48 最高 2.98V。关断期间读到稳定高电平（测不到转速），"
|
||
],
|
||
[
|
||
540,
|
||
722,
|
||
"导通期间才有脉冲 —— 这是低边调速的固有限制，不是接线错。"
|
||
],
|
||
[
|
||
45,
|
||
175,
|
||
"风扇电流 4x0.10 + 1x0.30 = 0.70A @12V；12V 输入预算 7.6 -> 8.3A，10A 适配器仍有余量。"
|
||
],
|
||
[
|
||
45,
|
||
155,
|
||
"风扇座 KF2510-3A：pin1 = +12V，pin2 = 风扇回流（MOS 漏极），pin3 = TACH。"
|
||
],
|
||
[
|
||
45,
|
||
806,
|
||
"【A】第三片 74HC595（U33）—— 5 路 EDL_EN"
|
||
],
|
||
[
|
||
45,
|
||
786,
|
||
"级联在 U22 之后：U22.QH'(9) -> U33.SER(14)，网络名 SR_CAS2。整条链变成 24 位，"
|
||
],
|
||
[
|
||
45,
|
||
770,
|
||
"先移入的字节落到 U33。SRCLK / RCLK / OE# 与前两片共用。"
|
||
],
|
||
[
|
||
45,
|
||
754,
|
||
"QA~QE = EDL_EN1~5；QF/QG/QH 备用不接。"
|
||
],
|
||
[
|
||
45,
|
||
738,
|
||
"100k 下拉不放在这里 —— 跟按键 MOS 栅极一样，放在载板上紧挨模拟开关（§8.1 复位安全）。"
|
||
],
|
||
[
|
||
540,
|
||
806,
|
||
"【B】风扇：低边 N-MOS + PWM，5 个风扇并一路（§22.6）"
|
||
],
|
||
[
|
||
540,
|
||
786,
|
||
"Q6 AO3400A 切风扇回流，D2 SS34 做续流 —— 风扇是感性负载，少了它 MOS 会被反峰打穿。"
|
||
],
|
||
[
|
||
540,
|
||
770,
|
||
"FAN_PWM = IO47，FAN_TACH = IO48。5 个 TACH 并联做线或，停一个频率掉约 1/5。"
|
||
],
|
||
[
|
||
540,
|
||
754,
|
||
"TACH 必须分压：低边 PWM 关断时风扇地被抬到 12V，TACH 集电极开路也跟着到 12V。"
|
||
],
|
||
[
|
||
540,
|
||
738,
|
||
"10k 上拉到 12V + 10k/3.3k 分压 -> IO48 最高 2.98V。关断期间读到稳定高电平（测不到转速），"
|
||
],
|
||
[
|
||
540,
|
||
722,
|
||
"导通期间才有脉冲 —— 这是低边调速的固有限制，不是接线错。"
|
||
],
|
||
[
|
||
45,
|
||
175,
|
||
"风扇电流 4x0.10 + 1x0.30 = 0.70A @12V；12V 输入预算 7.6 -> 8.3A，10A 适配器仍有余量。"
|
||
],
|
||
[
|
||
45,
|
||
155,
|
||
"风扇座 KF2510-3A：pin1 = +12V，pin2 = 风扇回流（MOS 漏极），pin3 = TACH。"
|
||
],
|
||
[
|
||
45,
|
||
806,
|
||
"【A】第三片 74HC595（U33）—— 5 路 EDL_EN"
|
||
],
|
||
[
|
||
45,
|
||
786,
|
||
"级联在 U22 之后：U22.QH'(9) -> U33.SER(14)，网络名 SR_CAS2。整条链变成 24 位，"
|
||
],
|
||
[
|
||
45,
|
||
770,
|
||
"先移入的字节落到 U33。SRCLK / RCLK / OE# 与前两片共用。"
|
||
],
|
||
[
|
||
45,
|
||
754,
|
||
"QA~QE = EDL_EN1~5；QF/QG/QH 备用不接。"
|
||
],
|
||
[
|
||
45,
|
||
738,
|
||
"100k 下拉不放在这里 —— 跟按键 MOS 栅极一样，放在载板上紧挨模拟开关（§8.1 复位安全）。"
|
||
],
|
||
[
|
||
45,
|
||
520,
|
||
"【B】风扇：低边 N-MOS + PWM，5 个风扇并一路（§22.6）"
|
||
],
|
||
[
|
||
45,
|
||
500,
|
||
"Q6 AO3400A 切风扇回流，D2 SS34 做续流 —— 风扇是感性负载，"
|
||
],
|
||
[
|
||
45,
|
||
484,
|
||
"少了它 MOS 会被反峰打穿。FAN_PWM = IO47，FAN_TACH = IO48。"
|
||
],
|
||
[
|
||
45,
|
||
468,
|
||
"5 个 TACH 并联做线或，停一个频率掉约 1/5（分不出是哪一个）。"
|
||
],
|
||
[
|
||
45,
|
||
444,
|
||
"TACH 必须分压：低边 PWM 关断时风扇地被抬到 12V，"
|
||
],
|
||
[
|
||
45,
|
||
428,
|
||
"TACH 是集电极开路，也跟着到 12V —— 直连 IO48 会打穿 ESP32。"
|
||
],
|
||
[
|
||
45,
|
||
412,
|
||
"10k 上拉到 12V + 10k/3.3k 分压 -> IO48 最高 2.98V。"
|
||
],
|
||
[
|
||
45,
|
||
396,
|
||
"关断期间读到稳定高电平（测不到转速），导通期间才有脉冲 ——"
|
||
],
|
||
[
|
||
45,
|
||
380,
|
||
"这是低边调速的固有限制，不是接线错。"
|
||
],
|
||
[
|
||
45,
|
||
175,
|
||
"风扇电流 4x0.10 + 1x0.30 = 0.70A @12V；12V 输入预算 7.6 -> 8.3A，10A 适配器仍有余量。"
|
||
],
|
||
[
|
||
45,
|
||
155,
|
||
"风扇座 KF2510-3A：pin1 = +12V，pin2 = 风扇回流（MOS 漏极），pin3 = TACH。"
|
||
],
|
||
[
|
||
460,
|
||
806,
|
||
"【A】第三片 74HC595（U33）—— 5 路 EDL_EN"
|
||
],
|
||
[
|
||
460,
|
||
786,
|
||
"级联在 U22 之后：U22.QH'(9) -> U33.SER(14)，网络名 SR_CAS2。"
|
||
],
|
||
[
|
||
460,
|
||
770,
|
||
"整条链变成 24 位，先移入的字节落到 U33。SRCLK / RCLK / OE# 与前两片共用。"
|
||
],
|
||
[
|
||
460,
|
||
754,
|
||
"QA~QE = EDL_EN1~5；QF/QG/QH 备用不接。"
|
||
],
|
||
[
|
||
45,
|
||
340,
|
||
"【B】风扇：低边 N-MOS + PWM，5 个风扇并一路（§22.6）"
|
||
],
|
||
[
|
||
45,
|
||
318,
|
||
"Q6 AO3400A 切风扇回流，D2 SS34 做续流 —— 风扇是感性负载，"
|
||
],
|
||
[
|
||
45,
|
||
302,
|
||
"少了它 MOS 会被反峰打穿。FAN_PWM = IO47，FAN_TACH = IO48。"
|
||
],
|
||
[
|
||
45,
|
||
286,
|
||
"5 个 TACH 并联做线或，停一个频率掉约 1/5（分不出是哪一个）。"
|
||
],
|
||
[
|
||
45,
|
||
262,
|
||
"TACH 必须分压：低边 PWM 关断时风扇地被抬到 12V，TACH 是集电极"
|
||
],
|
||
[
|
||
45,
|
||
246,
|
||
"开路，也跟着到 12V —— 直连 IO48 会打穿 ESP32。"
|
||
],
|
||
[
|
||
45,
|
||
230,
|
||
"10k 上拉到 12V + 10k/3.3k 分压 -> IO48 最高 2.98V。关断期间读到"
|
||
],
|
||
[
|
||
45,
|
||
214,
|
||
"稳定高电平（测不到转速），导通期间才有脉冲 —— 这是低边调速的"
|
||
],
|
||
[
|
||
45,
|
||
198,
|
||
"固有限制，不是接线错。"
|
||
],
|
||
[
|
||
45,
|
||
174,
|
||
"EDL_EN 的 100k 下拉不放这一页 —— 跟按键 MOS 栅极一样，放在载板"
|
||
],
|
||
[
|
||
45,
|
||
158,
|
||
"上紧挨模拟开关（§8.1 复位安全）。"
|
||
],
|
||
[
|
||
45,
|
||
134,
|
||
"风扇电流 4x0.10 + 1x0.30 = 0.70A @12V；12V 预算 7.6 -> 8.3A，10A 适配器仍有余量。"
|
||
],
|
||
[
|
||
45,
|
||
118,
|
||
"风扇座 KF2510-3A：pin1 = +12V，pin2 = 风扇回流（MOS 漏极），pin3 = TACH。"
|
||
],
|
||
[
|
||
460,
|
||
806,
|
||
"【A】第三片 74HC595（U33）—— 5 路 EDL_EN"
|
||
],
|
||
[
|
||
460,
|
||
786,
|
||
"级联在 U22 之后：U22.QH'(9) -> U33.SER(14)，网络名 SR_CAS2。"
|
||
],
|
||
[
|
||
460,
|
||
770,
|
||
"整条链变成 24 位，先移入的字节落到 U33。SRCLK / RCLK / OE# 与前两片共用。"
|
||
],
|
||
[
|
||
460,
|
||
754,
|
||
"QA~QE = EDL_EN1~5；QF/QG/QH 备用不接。"
|
||
],
|
||
[
|
||
45,
|
||
340,
|
||
"【B】风扇：低边 N-MOS + PWM，5 个风扇并一路（§22.6）"
|
||
],
|
||
[
|
||
45,
|
||
318,
|
||
"Q6 AO3400A 切风扇回流，D2 SS34 做续流 —— 风扇是感性负载，"
|
||
],
|
||
[
|
||
45,
|
||
302,
|
||
"少了它 MOS 会被反峰打穿。FAN_PWM = IO47，FAN_TACH = IO48。"
|
||
],
|
||
[
|
||
45,
|
||
286,
|
||
"5 个 TACH 并联做线或，停一个频率掉约 1/5（分不出是哪一个）。"
|
||
],
|
||
[
|
||
45,
|
||
262,
|
||
"TACH 必须分压：低边 PWM 关断时风扇地被抬到 12V，TACH 是集电极"
|
||
],
|
||
[
|
||
45,
|
||
246,
|
||
"开路，也跟着到 12V —— 直连 IO48 会打穿 ESP32。"
|
||
],
|
||
[
|
||
45,
|
||
230,
|
||
"10k 上拉到 12V + 10k/3.3k 分压 -> IO48 最高 2.98V。关断期间读到"
|
||
],
|
||
[
|
||
45,
|
||
214,
|
||
"稳定高电平（测不到转速），导通期间才有脉冲 —— 这是低边调速的"
|
||
],
|
||
[
|
||
45,
|
||
198,
|
||
"固有限制，不是接线错。"
|
||
],
|
||
[
|
||
45,
|
||
174,
|
||
"EDL_EN 的 100k 下拉不放这一页 —— 跟按键 MOS 栅极一样，放在载板"
|
||
],
|
||
[
|
||
45,
|
||
158,
|
||
"上紧挨模拟开关（§8.1 复位安全）。"
|
||
],
|
||
[
|
||
45,
|
||
134,
|
||
"风扇电流 4x0.10 + 1x0.30 = 0.70A @12V；12V 预算 7.6 -> 8.3A，10A 适配器仍有余量。"
|
||
],
|
||
[
|
||
45,
|
||
118,
|
||
"风扇座 KF2510-3A：pin1 = +12V，pin2 = 风扇回流（MOS 漏极），pin3 = TACH。"
|
||
],
|
||
[
|
||
45,
|
||
806,
|
||
"【A】第三片 74HC595（U33）—— CH2 / CH3 的六个侧键 + EDL_EN1 + HUB_RST"
|
||
],
|
||
[
|
||
45,
|
||
790,
|
||
"级联在 U22 之后：U22.QH'(9) -> U33.SER(14)，网络名 SR_CAS2，整条链 24 位。"
|
||
],
|
||
[
|
||
45,
|
||
774,
|
||
"2026-09-06 按 PCB 几何重排（§26.18）：U33 在 y≈70 mm，正对北排的 CH2 / CH3，"
|
||
],
|
||
[
|
||
45,
|
||
758,
|
||
"比原来从 U21(y≈50) 拉过去近 20~30 mm。Q0=EDL_EN1，Q1~Q3=K2，Q4~Q6=K3，Q7=HUB_RST。"
|
||
],
|
||
[
|
||
45,
|
||
742,
|
||
"EDL_EN 与按键的 100k 下拉不放这一页 —— 放在载板上紧挨模拟开关（§8.1 复位安全）。"
|
||
],
|
||
[
|
||
45,
|
||
520,
|
||
"【B】风扇：低边 N-MOS + PWM，5 个风扇并一路（§22.6）"
|
||
],
|
||
[
|
||
45,
|
||
500,
|
||
"Q6 AO3400A 切风扇回流，D2 SS34 做续流 —— 风扇是感性负载，"
|
||
],
|
||
[
|
||
45,
|
||
484,
|
||
"少了它 MOS 会被反峰打穿。FAN_PWM = IO18（模块脚 11），FAN_TACH = IO16（模块脚 9）。"
|
||
],
|
||
[
|
||
45,
|
||
468,
|
||
"5 个 TACH 并联做线或，停一个频率掉约 1/5（分不出是哪一个）。"
|
||
],
|
||
[
|
||
45,
|
||
444,
|
||
"TACH 必须分压：低边 PWM 关断时风扇地被抬到 12V，"
|
||
],
|
||
[
|
||
45,
|
||
428,
|
||
"TACH 是集电极开路，也跟着到 12V —— 直连 GPIO 会打穿 ESP32。"
|
||
],
|
||
[
|
||
45,
|
||
412,
|
||
"10k 上拉到 12V + 10k/3.3k 分压 -> 最高 2.98V。"
|
||
],
|
||
[
|
||
45,
|
||
396,
|
||
"关断期间读到稳定高电平（测不到转速），导通期间才有脉冲 ——"
|
||
],
|
||
[
|
||
45,
|
||
380,
|
||
"这是低边调速的固有限制，不是接线错。"
|
||
],
|
||
[
|
||
45,
|
||
175,
|
||
"风扇电流 4x0.10 + 1x0.30 = 0.70A @12V；12V 输入预算 7.6 -> 8.3A，10A 适配器仍有余量。"
|
||
],
|
||
[
|
||
45,
|
||
159,
|
||
"风扇座 2510-3A 直针（C2803349）：pin1 = +12V，pin2 = 风扇回流（MOS 漏极），pin3 = TACH。"
|
||
],
|
||
[
|
||
45,
|
||
806,
|
||
"【A】第三片 74HC595（U33）—— CH2 / CH3 的六个侧键 + EDL_EN1 + HUB_RST"
|
||
],
|
||
[
|
||
45,
|
||
790,
|
||
"级联在 U22 之后：U22.QH'(9) -> U33.SER(14)，网络名 SR_CAS2，整条链 24 位。"
|
||
],
|
||
[
|
||
45,
|
||
774,
|
||
"2026-09-06 按 PCB 几何重排（§26.18）：U33 在 y≈70 mm，正对北排的 CH2 / CH3，"
|
||
],
|
||
[
|
||
45,
|
||
758,
|
||
"比原来从 U21(y≈50) 拉过去近 20~30 mm。Q0=EDL_EN1，Q1~Q3=K2，Q4~Q6=K3，Q7=HUB_RST。"
|
||
],
|
||
[
|
||
45,
|
||
742,
|
||
"EDL_EN 与按键的 100k 下拉不放这一页 —— 放在载板上紧挨模拟开关（§8.1 复位安全）。"
|
||
],
|
||
[
|
||
45,
|
||
520,
|
||
"【B】风扇：低边 N-MOS + PWM，5 个风扇并一路（§22.6）"
|
||
],
|
||
[
|
||
45,
|
||
500,
|
||
"Q6 AO3400A 切风扇回流，D2 SS34 做续流 —— 风扇是感性负载，"
|
||
],
|
||
[
|
||
45,
|
||
484,
|
||
"少了它 MOS 会被反峰打穿。FAN_PWM = IO18（模块脚 11），FAN_TACH = IO16（模块脚 9）。"
|
||
],
|
||
[
|
||
45,
|
||
468,
|
||
"5 个 TACH 并联做线或，停一个频率掉约 1/5（分不出是哪一个）。"
|
||
],
|
||
[
|
||
45,
|
||
444,
|
||
"TACH 必须分压：低边 PWM 关断时风扇地被抬到 12V，"
|
||
],
|
||
[
|
||
45,
|
||
428,
|
||
"TACH 是集电极开路，也跟着到 12V —— 直连 GPIO 会打穿 ESP32。"
|
||
],
|
||
[
|
||
45,
|
||
412,
|
||
"10k 上拉到 12V + 10k/3.3k 分压 -> 最高 2.98V。"
|
||
],
|
||
[
|
||
45,
|
||
396,
|
||
"关断期间读到稳定高电平（测不到转速），导通期间才有脉冲 ——"
|
||
],
|
||
[
|
||
45,
|
||
380,
|
||
"这是低边调速的固有限制，不是接线错。"
|
||
],
|
||
[
|
||
45,
|
||
190,
|
||
"风扇电流 4x0.10 + 1x0.30 = 0.70A @12V；"
|
||
],
|
||
[
|
||
45,
|
||
176,
|
||
"12V 输入预算 7.6 -> 8.3A，10A 适配器仍有余量。"
|
||
],
|
||
[
|
||
45,
|
||
162,
|
||
"风扇座 2510-3A 直针（C2803349）："
|
||
],
|
||
[
|
||
45,
|
||
148,
|
||
"pin1 = +12V，pin2 = 风扇回流（MOS 漏极），pin3 = TACH。"
|
||
],
|
||
[
|
||
45,
|
||
806,
|
||
"【A】（已搬走）第三片 74HC595（U33）2026-09-06 随整条链挪到载板 C6-KEYS（§26.23）。"
|
||
],
|
||
[
|
||
45,
|
||
790,
|
||
"EDL_EN1~5 / HUB_RST 从此是载板内部网络，不再过排针。这一页只剩风扇。"
|
||
],
|
||
[
|
||
45,
|
||
520,
|
||
"【B】风扇：低边 N-MOS + PWM，5 个风扇并一路（§22.6）"
|
||
],
|
||
[
|
||
45,
|
||
500,
|
||
"Q6 AO3400A 切风扇回流，D2 SS34 做续流 —— 风扇是感性负载，"
|
||
],
|
||
[
|
||
45,
|
||
484,
|
||
"少了它 MOS 会被反峰打穿。FAN_PWM = IO18（模块脚 11），FAN_TACH = IO16（模块脚 9）。"
|
||
],
|
||
[
|
||
45,
|
||
468,
|
||
"5 个 TACH 并联做线或，停一个频率掉约 1/5（分不出是哪一个）。"
|
||
],
|
||
[
|
||
45,
|
||
444,
|
||
"TACH 必须分压：低边 PWM 关断时风扇地被抬到 12V，"
|
||
],
|
||
[
|
||
45,
|
||
428,
|
||
"TACH 是集电极开路，也跟着到 12V —— 直连 GPIO 会打穿 ESP32。"
|
||
],
|
||
[
|
||
45,
|
||
412,
|
||
"10k 上拉到 12V + 10k/3.3k 分压 -> 最高 2.98V。"
|
||
],
|
||
[
|
||
45,
|
||
396,
|
||
"关断期间读到稳定高电平（测不到转速），导通期间才有脉冲 ——"
|
||
],
|
||
[
|
||
45,
|
||
380,
|
||
"这是低边调速的固有限制，不是接线错。"
|
||
],
|
||
[
|
||
45,
|
||
190,
|
||
"风扇电流 4x0.10 + 1x0.30 = 0.70A @12V；"
|
||
],
|
||
[
|
||
45,
|
||
176,
|
||
"12V 输入预算 7.6 -> 8.3A，10A 适配器仍有余量。"
|
||
],
|
||
[
|
||
45,
|
||
162,
|
||
"风扇座 2510-3A 直针（C2803349）："
|
||
],
|
||
[
|
||
45,
|
||
148,
|
||
"pin1 = +12V，pin2 = 风扇回流（MOS 漏极），pin3 = TACH。"
|
||
]
|
||
]
|
||
},
|
||
"windowId": "7b032d25-27b0-4553-b6e3-e8a56cefbaef"
|
||
}
|