series connection switch circuit

Light emitted by a Xenon flash tube is transmitted to the phototransistor MRD300 through an optical fiber. The sensitive current is amplified to trigger a series of thyristors simultaneously. Consequently, a high voltage of 6000V is applied to loader R. This optical trigger flip-flop can eliminate the inductance delay typically associated with general wiring. In this setup, SCR devices are required to...

The circuit utilizes a Xenon flash tube as the primary light source, which produces a brief but intense burst of light. This light is directed through an optical fiber to a phototransistor, specifically the MRD300, which acts as a light-sensitive switch. The phototransistor converts the incoming light signal into an electrical signal, which is then amplified to provide sufficient current to trigger multiple thyristors at once.

The thyristors, also known as silicon-controlled rectifiers (SCRs), are semiconductor devices that control power flow in high-voltage applications. In this circuit, they are configured to handle a significant voltage level of 6000V, making them suitable for applications that require high power handling capabilities. The amplification stage is critical, as it ensures that even a small light pulse from the Xenon tube can effectively trigger the thyristors, leading to their rapid switching.

The optical trigger flip-flop design is advantageous as it mitigates the inductance delay that can occur in traditional wiring configurations. Inductance delay can lead to timing issues in high-speed applications, where precise triggering is essential. By using an optical method to trigger the thyristors, the circuit achieves faster response times and improved reliability.

In summary, this circuit exemplifies an innovative approach to high-voltage triggering using optical components and SCR devices, providing enhanced performance in applications requiring rapid switching and high power management.Light emitted by Xenon flash tube is transmitted to phototransistor MRD300 through optical fiber. Sensitive current is amplified to triggering a string of thyristors simultaneously. Therefore, high voltage of 6000V is set on loader R. This optical trigger flip-flop can eliminate the inductance delay of general wirings. Here, the SCR devices are required to.. 🔗 External reference