c742154626594cd6c294fcd275054c87dc84b96e
Board-dat/MPC/MPC1130-dat/2025-04-17-17-12-53.png
| ... | ... | Binary files /dev/null and b/Board-dat/MPC/MPC1130-dat/2025-04-17-17-12-53.png differ |
Board-dat/MPC/MPC1130-dat/MPC1130-dat.md
| ... | ... | @@ -3,7 +3,7 @@ |
| 3 | 3 | |
| 4 | 4 | - board use guide please refer to page [[RMP-driver-dat]] |
| 5 | 5 | |
| 6 | -https://www.electrodragon.com/product/rpi-passive-3ch-rgb-matrix-drive-board-v0/ |
|
| 6 | +[RPI Passive 3CH RGB Matrix Drive Board V0](https://www.electrodragon.com/product/rpi-passive-3ch-rgb-matrix-drive-board-v0/) |
|
| 7 | 7 | |
| 8 | 8 | |
| 9 | 9 | |
| ... | ... | @@ -32,10 +32,6 @@ Board Compatibility & Performance: |
| 32 | 32 | - With ABC panels (using shift registers), it needs high GPIO slowdown (--led-slowdown-gpio=8) |
| 33 | 33 | - Comparatively, the active board requires only --led-slowdown-gpio=7 to function properly |
| 34 | 34 | |
| 35 | -For two types of **flexible** P2 128x64 panels: |
|
| 36 | - |
|
| 37 | -- ABCDE panels have problematic magnetic connectors (2.5mm screws too shallow) |
|
| 38 | -- ABC panels have better 3mm screw frames but require shift register handling |
|
| 39 | 35 | |
| 40 | 36 | Chip Compatibility: |
| 41 | 37 | |
| ... | ... | @@ -49,7 +45,11 @@ https://github.com/hzeller/rpi-rgb-led-matrix/issues/1773 |
| 49 | 45 | |
| 50 | 46 | Current version is V1 to quick start |
| 51 | 47 | |
| 52 | -### further change |
|
| 48 | +### further change V2 |
|
| 49 | + |
|
| 50 | +Board map V2 |
|
| 51 | + |
|
| 52 | + |
|
| 53 | 53 | |
| 54 | 54 | - default setup like this: |
| 55 | 55 | - 4 ROW-E --- 8 |
Chip-dat/silergy-dat/SY8120-dat/SY8120-dat.md
| ... | ... | @@ -9,7 +9,8 @@ High Efficiency, Fast Response, 2.0A, 18V Input Synchronous Step Down Regulator |
| 9 | 9 | - [[Silergy-Corp-SY8120IABC_C479076.pdf]] |
| 10 | 10 | |
| 11 | 11 | |
| 12 | -Features |
|
| 12 | +## Features |
|
| 13 | + |
|
| 13 | 14 | - • Low RDS(ON) for Internal Switches (Top/Bottom): 130mΩ/105mΩ |
| 14 | 15 | - • 4.2-18V Input Voltage Range |
| 15 | 16 | - • 2A Output Current Capability |
| ... | ... | @@ -20,4 +21,20 @@ Features |
| 20 | 21 | - • Cycle-by-cycle Peak/Valley Current Limitation |
| 21 | 22 | - • Hic-cup Mode Output Short Circuit Protection |
| 22 | 23 | - • Thermal Shutdown with Auto Recovery |
| 23 | -- • Compact Package SOT23-6 |
|
| ... | ... | \ No newline at end of file |
| 0 | +- • Compact Package SOT23-6 |
|
| 1 | + |
|
| 2 | +## calculation |
|
| 3 | + |
|
| 4 | +100K / 22.1K = 3.3V |
|
| 5 | +100K / 16.6K = 4.2V |
|
| 6 | +100K / 13K = 5V |
|
| 7 | + |
|
| 8 | + |
|
| 9 | +Rl = 0.6V / (Vout - 0.6V) * Rh |
|
| 10 | + |
|
| 11 | + = 0.6V / (3.3V - 0.6V) * 100K = **22.2K** |
|
| 12 | + = 0.6V / (3.4V - 0.6V) * 100K = 21.4K |
|
| 13 | + = 0.6V / (5V - 0.6V) * 100K = 13.3K |
|
| 14 | + = 0.6V / (5.1V - 0.6V) * 100K = **12.8K** |
|
| 15 | + = 0.6V / (4.2V - 0.6V) * 100K = 16.6K |
|
| 16 | + = 0.6V / (4.3V - 0.6V) * 100K = **16.1K** |
|
| ... | ... | \ No newline at end of file |