Power Supply 12V/2A (DIN)

Wired. Mains AC input, DIN-rail mounted. Provides 12 V DC for PIERRE devices such as the Controller; size the supply to the total current of everything connected.

• Connect the AC input terminals to mains power: L (Live) and N (Neutral).
• The power supply converts mains AC to 12 V DC; the output terminals are marked V+ and V−.
• Connect V+ to the 12 V input of the device and V− to its GND.
• Use the correct conductor cross-section and double-check polarity to avoid damaging connected devices.

Example wiring: From Power supply to Controller

Functional Diagram – System Overview

The diagram shows the internal stages of a switching mode power supply (SMPS) from AC input to regulated DC output.

Block descriptions:

• I/P (Input): AC mains voltage is supplied to the power supply.
• EMI Filter: attenuates conducted and radiated electromagnetic interference and protects downstream components.
• Rectifiers & Filter (primary side): converts AC to DC and smooths the rectified voltage with capacitive filtering.
• Power Switching Stage: a high-frequency switching converter (typically a MOSFET) chops the DC voltage to drive the transformer; switching is controlled by PWM (pulse width modulation).
• Transformer: provides galvanic isolation between input and output and steps the voltage up or down.
• Rectifiers & Filter (secondary side): converts the high-frequency AC from the transformer back to DC and filters ripple and noise. Delivers the output rails +V and –V.
• Detection Circuit: monitors the output voltage and generates the feedback for regulation.
• Control Circuit: processes the feedback and adjusts the switching duty cycle for a stable DC output.
• O.L.P. (Over Load Protection): detects overload or short circuit on the output and limits the current or shuts the converter down.
• O.V.P. (Over Voltage Protection): disables the power supply if the output voltage exceeds the set limit.