Smps circuit controlled by TMS320F28062 IR4427 Gate driver. Designed with pfc circuit L6562 The design of printed circuit boards and the creation of electrical schemes is realized through Eagle cad. Due to the design of the resulting device, the inlet filter is together with an active rectifier placed on a separate printed circuit board. On…
This block is used to reduce and stabilize the voltage produced by the PFC block. The output voltage of this block is controlled by the control signal. Since the output voltage is higher than the safe touch (according to the CSN standard), it is possible to use the lower switch at the lowering drive. UCC28C43…
The reproducibility of DC-CDI in most implementers faces the difficulty and little experience of transformer winding. Therefore, this design, based on DC-CDI is used to transform the voltage using a PC power transformer EI-33. So there is no need to wind up any transformer. The necessary EI-33 transformer can be obtained from older types of…
This wiring is a module that makes it easy and easy to distinguish good operational amplifiers from defective ones. The op amp tester is designed to test simple, double and quadruple operational amplifiers. The wiring diagram of the opamp tester is shown in the schematic diagram. There are components in the tester that, together with…
The project deals with the construction of a universal display panel with 6 8 segment display tubes (numitrons) IV-6 of Russian production. The panel is also supplemented with a control unit with Atmega32 processor, where software for realization of clock is implemented. The operation of the device is the same as with the classic digital…
The core of the whole amplifier circuit is the TAS5630B one connection is based on modified the recommended BTL mode stereo input, which is listed by the manufacturer in Selection of the final chip involvement consisted of four different modes, of the optional input pins M1 to M3: TAS5630B 2 x BTL – two separate…
AVR microcontrollers are most commonly used for AVR-ISP MKII programmer programming with serial interface ISP. They are cheap and uncomplicated. However, these programmers have lost their versatility because Atmel has introduced new microcontrollers, programmed with PDI and TPI interfaces. The programmer presented in the article is universal, it will be useful to both older and…
The module is based on the popular LM4766 chip, completed with a symmetrical power supply. The assembled plate is a ready-made functional block of the audio system. The circuit diagram is shown in circuit schematic. The U1 (LM4766) systems operate in a non-inverting configuration. The input signal from the IN socket, through the C5 and…
The project deals with the solution of an electronic device for the control of lead Acid Battery. Lead-acid accumulators are susceptible to their excessive undercuts. The occurrence of these conditions in the lead-acid battery leads to a reduction in the life and capacity of the battery and, in the event of prolonged undercharging, the battery…
As you know, piezoelectric transducers tricycles have a capacitive character of the load. Therefore, appropriate is required control. On the one hand, the transmitter is fed directly from the US2 generator output to construction that I used the 555 tajmer in the CMOS version. The other side of the transducer, on the other hand it…