The **WCT-511-R/E** is a professional-grade ultrasonic cleaning system manufactured by **WAKO**. These units are typically used in industrial and laboratory settings for precision cleaning of electronic components, jewelry, and mechanical parts. Below is a breakdown of the electronic architecture and key components of this series. --- ### 1. Power Supply and Conversion The unit converts standard AC mains power into high-frequency electrical energy. | Component | Function | | :--- | :--- | | **EMI Filter** | Reduces electromagnetic interference sent back to the power grid. | | **Bridge Rectifier** | Converts AC input (110V/220V) into DC voltage. | | **Smoothing Capacitors** | Filters the rectified DC to provide a stable voltage bus for the power transistors. | ### 2. The Ultrasonic Generator (Inverter) This is the "heart" of the WCT-511. It oscillates at a specific frequency (typically **28kHz or 40kHz**). * **Power Transistors (IGBTs/MOSFETs):** These act as high-speed switches that pulse the DC power. * **Oscillator Circuit:** Determines the frequency of the pulse. Higher-end models like the WCT-511 often feature **Auto-Tuning**, which adjusts the frequency slightly to match the resonance of the tank as the load changes. * **Matching Transformer:** Steps up the voltage to the high levels required to drive the piezoelectric transducers. ### 3. Piezoelectric Transducers Located at the bottom of the stainless steel tank, these convert electrical energy into mechanical vibrations. * **Material:** Lead Zirconate Titanate (PZT) ceramic disks. * **Mechanism:** When high-frequency voltage is applied, the disks expand and contract rapidly, creating **cavitation bubbles** in the cleaning fluid. ### 4. Control Interface & Safety The "R/E" designation often implies specific control variations (Digital vs. Analog or Remote capabilities). * **Microcontroller (MCU):** Manages the timer functions and heater cycles. * **Heating Element:** An internal resistive heater used to optimize the chemical activity of the cleaning solution. * **Thermal Protection:** A thermistor or bi-metal switch that cuts power if the unit exceeds safe operating temperatures. ### Technical Specifications Summary | Feature | Description | | :--- | :--- | | **Transducer Type** | Bolt-clamped Langevin type | | **Control Logic** | Digital timer and temperature display | | **Safety Class** | IP-rated enclosures for moisture protection | | **Circuit Protection** | Fuse-protected input and thermal shutdown | ---