Wiki » Historie » Version 61
Maximilian Seesslen, 03.08.2026 14:08
| 1 | 1 | Maximilian Seesslen | h1. Wiki |
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| 2 | |||
| 3 | [[Eval]] |
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| 4 | 60 | Maximilian Seesslen | [[5V]] |
| 5 | 61 | Maximilian Seesslen | [[Perfect diode]] |
| 6 | 12 | Maximilian Seesslen | [[RTC-Test]] |
| 7 | 46 | Maximilian Seesslen | [[Eval-L7987]] |
| 8 | 50 | Maximilian Seesslen | [[Shopping]] |
| 9 | 53 | Maximilian Seesslen | [[BOM]] |
| 10 | 58 | Maximilian Seesslen | [[Measurements]] |
| 11 | 59 | Maximilian Seesslen | [[Issues]] |
| 12 | 2 | Maximilian Seesslen | |
| 13 | 26 | Maximilian Seesslen | Helios is "Mainswitch" and "CANSwitch" combined with some features added: |
| 14 | * RTC |
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| 15 | * 12V VBUS (optional) |
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| 16 | * 4 PWM channels |
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| 17 | 31 | Maximilian Seesslen | * Avoid reduction of LED count |
| 18 | 26 | Maximilian Seesslen | |
| 19 | 4 | Maximilian Seesslen | h2. Driver board |
| 20 | 5 | Maximilian Seesslen | |
| 21 | 4 | Maximilian Seesslen | * One board has 51,24W with the warm LEDs. With LDB350 in general max. 52,8 Watt. |
| 22 | 47 | Maximilian Seesslen | * Supply voltage: 9V-36V; Use min. 15V when Enable-MOSFET is used. |
| 23 | * Absolute maximum Voltage: |
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| 24 | ** 36V when LDB350-L is used |
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| 25 | ** 48V when Enable-MOSFET is used |
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| 26 | 55 | Maximilian Seesslen | * PWM: 100 ~ 1KHz; 2~10VDC or open circuit; PWM < 500Hz could be bad for power supply |
| 27 | 27 | Maximilian Seesslen | * Usage of LDB-350/LDB-300: Output 2 ~ 40VDC |
| 28 | 37 | Maximilian Seesslen | * 5V I2C Bus |
| 29 | 54 | Maximilian Seesslen | * [[Capacitors]] |
| 30 | 4 | Maximilian Seesslen | |
| 31 | h2. Controller board |
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| 32 | 6 | Maximilian Seesslen | |
| 33 | 48 | Maximilian Seesslen | * Supply voltage: 5V-60V (min/max 15V/36V when power is routed to driver board with LDB-350L; min. 12V for VBus 12V) |
| 34 | 10 | Maximilian Seesslen | * Provides VBus 5V or 12V (optional, can be powered externally) |
| 35 | 8 | Maximilian Seesslen | * Switch 4 power lines |
| 36 | 13 | Maximilian Seesslen | ** [VBus, Plant lamp, Media, illumination] or [VBus, Plant lamp, 2 x Illumination]; VBus can be on of the illumination supplies |
| 37 | 8 | Maximilian Seesslen | * Can start via RTC or Button |
| 38 | 9 | Maximilian Seesslen | * Measure power consumption |
| 39 | * 4 PWM signals for regulator board(s) |
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| 40 | 1 | Maximilian Seesslen | * External I2C bus for regulator board(s) |
| 41 | * USB port for configuration |
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| 42 | 38 | Maximilian Seesslen | * 3 CAN connectors to have it somwhere in the middle of the bus + Display or to have 5V+12V bus |
| 43 | 13 | Maximilian Seesslen | |
| 44 | 29 | Maximilian Seesslen | h2. Connectors |
| 45 | |||
| 46 | 35 | Maximilian Seesslen | ??? |
| 47 | 30 | Maximilian Seesslen | | GND |_. 1 |_. 2 | 5V | |
| 48 | | SCK |_. 3 |_. 4 | SDA | |
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| 49 | | PWM1 |_. 5 |_. 6 | PWM2 | |
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| 50 | | PWM3 |_. 7 |_. 8 | PWM4 | |
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| 51 | | En |_. 9 |_. 10 | | |
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| 52 | 29 | Maximilian Seesslen | |
| 53 | 24 | Maximilian Seesslen | h2. Lamps |
| 54 | 1 | Maximilian Seesslen | |
| 55 | 34 | Maximilian Seesslen | * BXRE-65S1001-C-74; kalt; "#110"; 360mA; 34.4V; 12.4W; 1610lm; 3.08 Euro |
| 56 | * BXRH-27G1000-B-83; warm; "#?"; 350mA; 36.6V; 12.8W; 1256lm; 1.39 Euro |
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| 57 | |||
| 58 | 13 | Maximilian Seesslen | h2. Parts |
| 59 | 1 | Maximilian Seesslen | |
| 60 | 36 | Maximilian Seesslen | * MCU: STM32F072CBT6 128kB Flash; 1,85 € / 3,47 € |
| 61 | 1 | Maximilian Seesslen | * SSRs: CPC1976: "Datasheet":https://www.tme.eu/Document/905abd07f76f05090463070be7486d83/CPC1976.pdf 2A_rms continuous -> 460W; 1,8KW all together; zero cross (CPC1976YX6 is non-zero-cross) |
| 62 | 23 | Maximilian Seesslen | * Power measurement: INA228AIDGSR; 3.63EUro |
| 63 | 13 | Maximilian Seesslen | * 12V/5V: L7987 |
| 64 | * 5V I2C: PCA9306DCTR |
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| 65 | 45 | Maximilian Seesslen | * High power: SSR-2528ZD3 kann 25A (6000W); Steuerung via 5V; habe "RA2425-d06":https://www.reichelt.de/de/de/shop/produkt/solid-state-relais_ust_3-32vdc_ulast_24-280v-22691, sollte identisch sein. Pizzaofen hat 1500W |
| 66 | 39 | Maximilian Seesslen | * Ideal diods: MAX40200 for VDD from VBAT; LM74700 for VBUS with seperate MOSFET |
| 67 | 1 | Maximilian Seesslen | * LDB-350L: 6.60 Euro |
| 68 | * LDB-300L: 6.54 Euro |
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| 69 | * SK57750AL; Ø50mm; H:50mm; 5,61Euro |
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| 70 | 36 | Maximilian Seesslen | * COB-Halterung CLL020: 8100/G2; 2,32Euro |
| 71 | 30 | Maximilian Seesslen | |
| 72 | h2. Errata |
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| 73 | |||
| 74 | 44 | Maximilian Seesslen | * There is only one global 'Enable' signal to the driver boards. Not a big deal, the power supplies can be switched off anyways. |
| 75 | 49 | Maximilian Seesslen | ** Usecase 1: When Controller board shares power supply with Driver boards, it can disable drivers when it only wants to feed VBUS. |
| 76 | ** Usecase 2: When Controller board MCU goes to standby or stop mode and the LED supply is not switched, light will go 100%. |
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| 77 | 56 | Maximilian Seesslen | |
| 78 | h2. Todo |
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| 79 | |||
| 80 | * Go 880Hz |
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| 81 | * Test wired big capacitor and impact on oszi screen |
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| 82 | * Add I2C and test the current measurement |