Hi ST team,I have design the 10V isolated power supply design using viper222LSTR IC having universal input AC supply. Schematic of the circuit is attached here.When i am increasing the input voltage, voltage across the capacitor C7 maintain constant ...
Respected Sir/Ma'am, I'm designing 2KW SMPS from reference schematics design of "STEVAL-ISA172V2: 2 KW fully digital AC-DC power supply (D-SMPS) evaluation board". I've not faced any obstacle in designing schematics ...
Dear ST Community Member,Currently working on development of 1.2kW EV Charger. The L6599AD (high-voltage resonant controller) IC is used for half-bridge LLC topology. We have tested the IC separately by giving different voltages at various pins of th...
I have assembled PFC and LLC circuit of STDES-3KWTLCP reference design. I followed the procedure as described in the document to assemble whole circuit. When we gave AC voltage to PFC, resistance R154 gets heat up and eventually burn out. I double ch...
I am designing a 200W 36V supply with STCMB1 driver, I am having problems with the circuit. The supply cannot supply the 6A of its capacity, it does not supply more than 800mA and the output voltage drops to 33V.
Hello, I need to be able to generate a small DC voltage from an AC voltage. The App Note 4260 looked absolutely perfect - exactly what I needed - 12V 150mA buck converter. Simple. no flyback transformers, etc. But I was a bit confused as to the GN...
Hi, I'm working on a board that has a USB PD input and a USB PD output.The board initialises via a generic PD 100W charger connected to the USB-C input, negotiating power for 20V / 5A via the STUSB4500. After this, I'm trying to source the voltage to...
Hello ST Community,I'm currently working on simulating a flyback topology using VIPERGaN100 and SR1001 for synchronous rectification control in eDsim. However, I've encountered an issue as the SRK1001 synchronous rectification controller is not avail...
My company designs circuits and artwork upon request from customers.We are considering this project based on a customer's request to change the laser power supply to be compatible with worldwide use.While considering various things, I am also conside...
Hi team, Kindly assist us with below mentioned queries. For the part series ST890DTR Datasheet did not specify junction-case thermal resistance and junction-board thermal resistance. we need these values for the thermal simulation. so, can you pleas...