T.vst59.031 Schematic Diagram 2021 -

| Block | Description | Typical I/O | Key Components | |-------|-------------|-------------|----------------| | | AC mains → EMI filter → Rectifier → Bulk Capacitor | L, N, PE → DC Bus (+V, –V) | X1 (EMI filter), D1‑D4 (bridge), C1‑C2 (bulk) | | DC‑DC Converter | Boost/ Buck to regulated rails (e.g., 12 V, 5 V) | DC Bus → Regulated rails | U1 (controller), L1‑L3 (inductors), D5‑D7 (Schottky) | | Control Logic | Microcontroller or DSP that drives the power stage | Regulated rails, sensor inputs, communication pins | MCU‑XYZ, R‑network, opto‑isolators | | Output Stage | Driver MOSFETs / IGBTs, protection circuitry | Regulated rails, load | Q1‑Q4 (MOSFETs), snubber network, fuses | | Feedback/Monitoring | Voltage/current sense, temperature, fault flags | Sensors → ADC | shunt resistor, INA219, thermistor, comparator U2 | | Safety & Protection | Over‑voltage, over‑current, short‑circuit, isolation | Various | TVS diodes, PTC fuses, crowbar circuit |

RF input and tuner section