Method: Salvaging ferrite cores Why The world is full of electronics being unceremoniously discarded. Said electronics contains power supplies. Said power supplies contain a number of magnetics, namely transformers and chokes with ferrite cores, of all sorts of sizes and shapes (well, usually E or EI, but anyway). A computer power supply will have several.…
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…
I’ve shared a lot of SMPS power supply projects with IR2153, especially AT, ATX power supply. The IR2153 works great for evaluating power transformers. Even bigger companies such as Yamaha have used the 8 pin MOSFET driver integration in their products. an integrated but not very common use in DIY environment I did not have…
Li-ion 14.4V Battery Pack UC3844 SMPS Charger the UC3844 integrated circuit is supplied directly from the DC link via the resistor R2. After the circuit switches on, the power transistor Q1 is powered by the auxiliary winding. The RCD cell, consisting of R3, capacitor C3 and diode D1, protects the power transistor from positive overflows…
TOP249Y SMPS circuit audio amp. From the derived parameters of the sources in the previous paragraphs, we can now choose a control circuit of switching power supply. According to the required output power we have to choose between the circuits of the topswitch GX series. Between the circuits of this series was chosen circuit TopSwitch…
Class D Aplifier Switch mode power supply DESIGN OF THE POWER SUPPLY The whole device is necessary to power up of several voltages. The preamp requires a symmetrical voltage 15 V, IRS2092 class d power amplifier symmetric 100V and to +12 In the against the negative branch. The desired performance of the one-hundred-volt branches for…
UC3845 Lead–acid Battery SMPS Charger The board is designed as a superior power and a subordinate current regulation, which is powered from the main board. Voltage is sensed using a voltage divider directly on the output switching power supply. Current is sensed by current transformer TR2 and further streamed diode D20, and subsequently converted into…
Self-oscillating switchmode power supply SMPS is used as a simple and cheap power source. Circuits that carry the architecture of the samokmitajících converters comprising, for example, resources for the charger of mobile phones or resources for power supply of data processing. It is therefore mainly of a low power applications (up to 100 W). Flyback…
Adjustable Laboratory Power Supply SMPS design a lab power supply switching concept, which will work in kvazirezonancním fashion. The source should have one symmetrical output 0 to ±30 V / 5A (UCC28600) and one output single-ended +5V / 2A. (TOP243) Equipment opatrete digital indication of the output voltage and current and the electronic protection during…