Isolated 15V To 2500V Supply

A DC-DC converter utilizes a 74HC04 to drive transformer Tl. Tl is a ferrite-core transformer from Fair-Rite, Inc., with part number 597-5000201, featuring a 7-turn primary winding and a 25-turn secondary winding. Kynar #30 wire wrap wire is employed in the construction. The circuit provides isolation up to 2500 V with transformer Tl.

The described DC-DC converter circuit features a 74HC04 hex inverter as the driving element, which is responsible for generating the necessary pulse-width modulation (PWM) signal to control the operation of the ferrite-core transformer. The choice of the 74HC04 is significant due to its high-speed performance and capability to handle various voltage levels, making it suitable for efficient switching applications.

Transformer Tl, with its 7-turn primary and 25-turn secondary, is designed to step up the voltage from the primary side to the secondary side. The turns ratio of approximately 1:3.57 indicates that the secondary voltage will be significantly higher than the primary voltage, which is essential for applications requiring higher output voltages from a lower input voltage source. The use of a ferrite core helps to minimize losses and improve efficiency, particularly at high frequencies.

The isolation capability of 2500 V is a critical feature of this design, ensuring that the high-voltage output is electrically isolated from the input side. This is particularly important in applications where safety and protection from high voltages are paramount. The Kynar #30 wire wrap wire used in the construction of the transformer is known for its excellent insulation properties and reliability, which further enhances the overall performance and safety of the circuit.

In summary, this DC-DC converter circuit demonstrates a robust design leveraging a hex inverter and a ferrite-core transformer to achieve high efficiency, voltage step-up, and safety through electrical isolation. The selection of components and their specifications contribute to a reliable solution for various applications in power electronics. A dc-dc converter using a 74HC04 drives Tl. Tl is a ferrite-core transformer using a Fair-Rite, Inc. P/N 597 5000201 (uo + 5000) and has a 7-turn primary and a 25-turn secondary. Kynar, #30 wirewrap wire is used. With Tl, the circuit isolation is good to 2500 V. 🔗 External reference