The **T393D** is a specialized, intelligent DC power supply and soldering station combo, widely used in the precision electronics repair industry (specifically for mobile phones and micro-soldering). It is manufactured by brands like **JCID** or **AiXun**. Below is a breakdown of its primary electronic components and technical specifications. --- ## 1. Core Technical Specifications The T393D is known for its dual-functionality. Here are the electronic ratings: | Feature | Specification | | :--- | :--- | | **Input Voltage** | 110V / 220V AC | | **Output DC Voltage** | 0 - 32V | | **Output DC Current** | 0 - 8A | | **Soldering Power** | Up to 200W (Support for T245/T210/T115 handles) | | **Display Type** | IPS Color High-Definition Screen | --- ## 2. Key Internal Electronic Parts ### A. Microcontroller (MCU) The "brain" of the device is a high-speed 32-bit MCU. It performs real-time monitoring of current and voltage, manages the PID temperature control algorithm for the soldering iron, and handles the graphical user interface. ### B. Power Delivery System * **Toroidal or Switching Transformer:** Converts AC mains to low-voltage DC. * **Filter Capacitors:** Large electrolytic capacitors used to smooth the ripple in the DC output, ensuring stable power for sensitive logic boards. * **MOSFETs (Metal-Oxide-Semiconductor Field-Effect Transistors):** Used as high-speed switches to regulate power output and protect against short circuits. ### C. Protection Circuitry The T393D includes several safety components: * **OCP (Over-Current Protection):** Automatically cuts power if a short circuit is detected. * **OVP (Over-Voltage Protection):** Prevents voltage spikes from damaging the connected device. * **Thermal Sensors:** Monitors internal heat sinks to trigger cooling fans or thermal shutdown. ### D. Interface & Connectivity * **Expansion Port:** Allows for future hardware upgrades or connection to PC software. * **Banana Plug Terminals:** High-conductivity ports for DC power output. * **Aviation Plugs:** Specialized multi-pin connectors for soldering iron handles to ensure stable data and power transmission. --- ## 3. Advanced Features * **Current Waveform Analysis:** The electronic board includes an integrated oscilloscope-like function that displays current consumption in a graph, helping technicians identify "short-to-ground" issues on smartphone motherboards. * **Dual-Channel Logic:** The internal circuitry allows the soldering iron and the DC power supply to operate simultaneously without interference (Cross-talk prevention). ---