Kapanadze 2

The DC/DC converter operates from 110/220V to 12V, not in the reverse direction. The 12V output serves as a substitute for the battery. This output is derived from L4 (which has been marked as L3). The transformer T1 has four windings, with the fourth winding connected to the top of GEN2 (there are two GEN2 configurations present). The pulse generators function at 5V, while the power transistors in the nanopulser switch at 150V. Another 150V from the same inverter transformer feeds into the output coil. The nanopulser is synchronized with the inverter's phase to avoid generating random pulses. Additionally, the G202 diode performs a function similar to that of a spark gap in a Tesla coil. According to the attached schematic (which is a translated version of the original), transistor Q3 inverts the output from the NAND gates in integrated circuit U3. The assembly of this system can be achieved with a 1:1 ratio, but certain corrections are necessary (for example, the gate of the IRF460 should not be connected directly to the TL494 outputs through the 3100pF input capacitor). Without these corrections, the system will not function properly.

The described DC/DC converter is designed to step down voltage from standard mains supply levels (110V or 220V) to a lower voltage of 12V. This converter is particularly useful in applications where a stable 12V supply is needed, such as in battery replacement scenarios. The configuration utilizes a transformer with four windings, which allows for the necessary voltage transformation and isolation. The mention of L4 indicates a specific inductor or coil that plays a role in energy storage or filtering within the circuit.

The pulse generators operating at 5V are likely responsible for driving the switching transistors that control the power delivery to the load. The nanopulser component is critical in ensuring that the output is stable and does not produce erratic pulses, which could lead to inefficiencies or damage to connected devices. The synchronization of the nanopulser with the inverter's phase is essential for maintaining consistent performance.

The G202 diode's role as a spark gap equivalent suggests that it is used for voltage clamping or protection, which is important in high-voltage applications to prevent damage from voltage spikes. The functionality of transistor Q3, which inverts the output of the NAND gates in integrated circuit U3, indicates that logic level manipulation is part of the control mechanism for the converter.

Assembly of the circuit is straightforward, but attention to detail is crucial. The specified correction regarding the IRF460 transistor gate connection highlights the importance of proper circuit design and component interaction to ensure reliable operation. Any misconnection could lead to malfunction or failure of the converter, emphasizing the need for careful adherence to the schematic and design specifications.the dc/dc converter is 110/220->12v not the other way. so the 12V takes the place of the battery, this comes from L4 (what you have marked L3) on t1 there`s really 4 windings, the 4th goes to the top GEN2 (you have 2 gen2`s) The pulse generators are running on 5V, the power transistors in nanopulser are switching 150V, another 150V from same inver ter transformer goes into output coil. The nanopulser is locked into inverter`s phase so it does not spit out random pulses. Also G G 202 diode there is doing same function as spark gap in Tesla coil. According to the attached schematic (which is identical to your but translated to english), the transistor Q3 will invert the output of the NAND Gates in Integrated Circuit U3. Its very easy to assemble system 1:1, sure need correct some mistakes (for ex. not connect gate of IRF460 with 3100pF input cap. directly to TL494 outputs). But in result for sure nothing will work. 🔗 External reference