Welder-Button
LHRIC
Hardware and software for sensor button to control arc amperage of welder torch.
Components (34)
| Reference | Value | Description |
|---|---|---|
| IC1 | OPA2209AIDR | 2.2nV/rtHz, 18MHz, Precision, RRO, 36V Operational Amplifier |
| IC2 | MCP4726A1T-E_CH | Microchip, DAC 12 bit- 82LSB Serial (I2C), 6-Pin SOT-23 |
| IC3 | STM32F042K4T6 | ARM-based 32-bit MCU, up to 32 KB Flash, crystal-less USB FS 2.0, CAN, 9 timers, ADC and comm. interfaces, 2.0 - 3.6 V |
| IC4 | TPS561246DRLR | Switching Voltage Regulators 4.2V to 17V input voltage, 1A, 1.2MHz synchronous buck converter in SOT563 with FCCM mode |
| Q1 | NPN | Bipolar transistor symbol for simulation only, substrate tied to the emitter |
| U1 | LM2936-3.3 | 50mA Ultra-Low Quiescent Current LDO Voltage Regulator, 3.3V fixed output, TO-252/SOT-223 |
| C1,C4,C6-C11,C13,C14,C16,C17,C21,C22 | 0.1uF | Unpolarized capacitor, small symbol |
| C3 | 220pF | Unpolarized capacitor, small symbol |
| C5,C15,C23 | 10uF | Unpolarized capacitor, small symbol |
| C12 | 10nF | Unpolarized capacitor, small symbol |
| C18 | 33uF | Unpolarized capacitor, small symbol |
| C19 | .47uF | Unpolarized capacitor, small symbol |
| C20 | 22uF | Unpolarized capacitor, small symbol |
| C24 | 47pF | Unpolarized capacitor, small symbol |
| D1,D2 | LED | Light emitting diode |
| D5 | 10V | Zener diode |
| J1 | Conn_02x02_Top_Bottom | Generic connector, double row, 02x02, top/bottom pin numbering scheme (row 1: 1...pins_per_row, row2: pins_per_row+1 ... num_pins), script generated (kicad-library-utils/schlib/autogen/connector/) |
| J2 | Conn_02x03_Top_Bottom | Generic connector, double row, 02x03, top/bottom pin numbering scheme (row 1: 1...pins_per_row, row2: pins_per_row+1 ... num_pins), script generated (kicad-library-utils/schlib/autogen/connector/) |
| J3 | Conn_02x04_Counter_Clockwise | Generic connector, double row, 02x04, counter clockwise pin numbering scheme (similar to DIP package numbering), script generated (kicad-library-utils/schlib/autogen/connector/) |
| K1 | V23079G2008B301 | General Purpose Signal Relay, DC, Polarized, Monostable, 2 Form C DPDT-CO, 2 A Contact Rating, 3 VDC Coil Voltage, Axicom P2 Signal Relay |
| L1 | 3.3uH | Inductor, small symbol |
| R1,R2 | 250 | Resistor, small US symbol |
| R3,R8,R10 | 10k | Resistor, small US symbol |
| R4 | 100 | Resistor, small US symbol |
| R5 | 4.2k | Resistor, small US symbol |
| R6 | 16k | Resistor, small US symbol |
| R7,R9 | 5.1k | Resistor, small US symbol |
| R11-R13 | 47 | Resistor, small US symbol |
| R14 | 1k | Resistor, small US symbol |
| R15 | 100k | Resistor, small US symbol |
| R16 | 30k | Resistor, small US symbol |
| R17 | 220k | Resistor, small US symbol |
| SW1,SW2 | SW_SPST | Single Pole Single Throw (SPST) switch |
| TP1-TP11 | TestPoint | test point |