PCB Design Unterstützung

flux

Your goal is to refactor the schematic to the new power and I/O architecture with charger/protection, stronger 3V3 LDO, and cleaned nets.
Plan
  1. Power refactor
  • Swap LDO to ≥500 mA and add required caps; create 3V3.
  • Add 1S charger + protection; create BATT_PROT; feed Boost IN.
  1. 12 V path
  • BOOST_12V_RAW → shunt → INA219 → P‑MOSFET → PS5_12V; add TVS and optional series R.
  1. USB‑UART
  • J1 D± → ESD → R9/R10 → CP2102N; keep TX/RX direct; gate EN/IO0 via jumpers.
  1. Interfaces
  • Map I2C (GPIO21/22), UART2 (GPIO16/17 with 100 Ω), DS18B20 (GPIO4).
  1. Cleanup
  • Normalize net names; remove stale portals; run ERC.
Click Start to execute; let me know if you want specific LDO/charger/protection parts.
LDO-Auswahl festlegen
1S-Lader auswählen
Schutzschaltung konkretisieren
MOSFET-Gate Schutz prüfen
Netznamen/Headers in Flux

Started implementing a plan

#Goal

- Refactor the PS5‑Diagnose‑Power‑Supply‑Stick schematic to meet the new target architecture by replacing the 3.3 V LDO with a ≥500 mA component, adding a 1S Li‑ion charger and protection block, rewiring power nets to integrate a charger, Boost converter, shunt measurement, and MOSFET-based power path; ensure proper USB-UART enumeration through the CP2102N and map additional headers (UART2, OLED I2C, DS18B20) while cleaning up net names and running ERC.

#Implementation plan

1. Power Subsystem

1. Replace the existing 3.3 V LDO with a new ≥500 mA version. Add the necessary capacitors at input and output and rename the resulting supply net to ‘3V3’.

2. Add a 1S Li‑ion charger circuit (TP4056‑class) using the USB_5V supply and incorporate a 1S protection block (DW01A+FS8205‑class). Wire the output of the protection circuit to create a new net BATT_PROT.

3. Connect BATT_PROT as the input for the external Boost converter via the net labeled Boost IN.

2. 12 V Power Path

1. Rewire the BOOST_12V_RAW path to incorporate the series shunt resistor (R8), feed the voltage into the INA219 (U1) for current/voltage monitoring, and then route through the P‑MOSFET (Q1) to provide the PS5_12V supply.

2. Add a TVS diode (D1) to protect the 12 V path and include an optional resistor (R14) for additional filtering or voltage control as required.

3. USB‑UART and CP2102N Enumeration

1. Route the USB D+/D‑ lines from the USB-C connector (J1) through the USBLC6‑4SC6 ESD protection (U11) and appropriate resistors (R9/R10) into the CP2102N (U10).

2. Ensure that the CP2102N always enumerates by confirming correct connections and adding jumper‑gated routing (via JP1/JP2) to the EN/IO0 line for auto‑programming.

4. Interface Mapping and Net Cleanup

1. Map the additional headers for UART2, the OLED I2C (using GPIO21 for SDA and GPIO22 for SCL with 4.7k pull‑ups), and the DS18B20 sensor (using GPIO4 for 1WIRE).

2. Rename and clean up all net names (e.g., '3V3', 'POWER_CTRL', 'PS5_12V', 'BATT_PROT+', 'I2C_SDA/SCL', '1WIRE', 'UART*') and remove unused portals.

3. Run ERC to validate the schematic’s compliance with electrical rules.

#Success criteria

- The schematic uses a ≥500 mA 3.3 V LDO, a fully integrated 1S Li‑ion charger and protection block, and meets the new power net routing requirements.

- The 12 V path is routed through the shunt, INA219, and P‑MOSFET to PS5_12V with additional TVS protection.

- CP2102N enumerates reliably with jumper‑gated auto‑program (EN/IO0).

- All headers (UART2, OLED I2C, DS18B20) are correctly mapped and the schematic shows clean, standardized net naming.

- ERC runs without significant errors or warnings, confirming schematic compliance.

Working on your request...

0:25

Checking 6 knowledge sources...

Identified candidate LDO, charger, protection, TVS

1:04

Started: Selecting LDO, charger, protection, TVS parts.
Search 5 components.
Search complete.

Execution stopped due to insufficient credits.

1:47

Started: Replacing LDO, adding charger and protection.
Running design checks.

flux

  • Added 1x LP38693MP-3.3/NOPB as U15
  • Added 1x TP4056 as U16
  • Added 1x DW01A as U17
  • Added 1x FS8205A as Q2
  • Added 1x SMAJ12A-TR as D1
  • Added 5x Generic Capacitor as C11, C12, C13, C14, C15
  • Added 4x Generic Resistor as R14, R15, R16, R17
  • Generic Inductor
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  • Generic Capacitor
    Generic Capacitor
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  • Generic Resistor
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Historical Indigo Ecto Goggles 16e1 dcf9

Historical Indigo Ecto Goggles 16e1 dcf9 thumbnail
PS5-Diagnose-Power-Supply-Stick - Battery boost 12V + ESP32 control

Properties

1.27 mm minimum

USB-C (5 V sink), I2C OLED + INA219, UART2 to PS5

30-50 mm x 60-100 mm

Production

3-8 V battery input; 5 V USB-C input; 12 V output; 3.3 V logic

No passives smaller than 0805; no pitch finer than 1.27 mm (use breakout/headers if needed)

PS5-Diagnose-Power-Supply-Stick

Power + Embedded

12 V output 10-30 W tightly regulated; >2 A peak current capability

flowchart TD subgraph PowerPath [Power Path] BAT["18650 1S via external BMS"] --> BOOST["Boost 3-8V to 12V 10-30W"] BOOST --> SHUNT["Current Shunt"] SHUNT --> CS["INA219 Current Sense"] CS --> SW["P-channel High-Side MOSFET"] SW --> PS5["PS5 12V Output Header"] end subgraph LogicPower [Logic Power] USB["USB-C 5V Input"] --> REG3V3["3.3V Regulator"] BAT --> REG3V3 REG3V3 --> MCU["ESP32-WROOM-32"] REG3V3 --> OLED["OLED 128x32 SSD1306"] REG3V3 --> CS end subgraph ControlAndIO [Control and IO] MCU --> CS MCU --> OLED MCU --> SW MCU --> UART["PS5 UART Header"] end subgraph Protection [USB Protection] USB --> CC["CC Rd Resistors"] USB --> ESD["ESD TVS on D+ D-"] end

Pricing & Availability

Distributor

Qty 1

Arrow

$7.17–$157.55

Digi-Key

$11.87–$132.64

LCSC

$4.50–$44.34

Mouser

$14.90–$47.96

TME

$2.43

Verical

$5.72–$72.06

Controls