KC04 pin diagram and application circuit diagram

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The following is the circuit diagram of [KC04 Pin Diagram and Application Circuit]. The KC04 circuit is widely used in single-phase and three-phase full-controlled bridge power supply systems, particularly for bidirectional pulse phase shift triggering of thyristors. This device generates two-phase-shifted pulses with a 180° phase difference, making it ideal for constructing full-controlled bridge flip-flop circuits. The KC04 offers several key features: high output load capacity, excellent phase shifting performance, balanced positive and negative half-cycle pulse phases, a wide phase shift range, low requirements for the synchronization voltage, and the ability to modulate pulse trains. Key electrical parameters include: - **Power Supply Voltage**: DC 15V (allowing ±5% fluctuation) - **Power Supply Current**: Positive current ≤ 15mA, Negative current ≤ 10mA - **Synchronous Voltage**: Typically 30V AC - **Maximum Synchronous Input Current**: 3mA (RMS) - **Phase Shift Range**: ≥170° (with 30V AC synchronous voltage and 15–30kΩ resistance) - **Sawtooth Amplitude**: ≥10V (based on the flat top of the sawtooth wave) - **Output Pulse**: - **Pulse Width**: 10μs to 2ms (adjustable by changing the capacitance) - **Pulse Amplitude**: >13V - **Maximum Output Capacity**: 100mA (pulse current) - **Output Back Pressure**: BVceo ≥ 18V (test condition: Ie ≤ 100μA) - **Positive/Negative Half-Cycle Phase Unbalance**: ≤ ±3° - **Operating Temperature Range**: -10°C to 70°C

KC04 Pin Diagram

SCR phase shift trigger KC04 typical application circuit diagram

Typical Application Circuit of KC04

SCR phase shift trigger KC04 typical application circuit diagram

KC04 Waveform Diagram at Each Point

The KC04 chip consists of multiple internal circuits, including a synchronization detection circuit, a sawtooth wave generation circuit, a phase shift voltage circuit, an offset voltage circuit, a comparator amplifier circuit that integrates the sawtooth voltage, and a power amplifier circuit.

SCR phase shift trigger KC04 typical application circuit diagram

(Editor: Circuit Diagram)

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