# Questions tagged [converter]

A circuit that converts a signal from one form to another: analog to digital, digital to analog, voltage to current, current to voltage, etc. The key to understanding is the transformational properties of the circuit, as opposed to just amplification or buffering.

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### How is the pole frequency calculated in a Type 2 compensator using OTA in TI App Note?

I was reading "Demystifying Type II and Type III Compensators Using Op-Amp and OTA for DC/DC Converters" (link here) and came across equation (23) found on page 7. It provides an example of ...
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### Converting 12 VDC to 24 VDC @ 6000 Watts [closed]

I am wanting to try to build a 12 VDC to 24 VDC converter rated for 6000 Watts or 250 Amps. Anybody here have experience designing such a board? I have been working with Chat GPT and its not ...
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### Constant output voltage in buck-boost converters

I'm a self-taught student. I'm trying to understand the working principle of buck-boost converters in continuous conduction mode. When the switch is turned on, the equation describing the inductor is ...
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### AC-to-DC rectifier and DC-to-DC converter

I am currently doing an assignment featuring an AC-DC EV Charger topology as shown below. I have obtained answers for (a) and (b). However, I am unable to derive the equation exactly as given in the ...
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### What are these resistors used in this flyback converter?

I'm new to designing flyback converters. I noticed resistors connecting the primary and auxillary coils. Can somebody explain the usage of these resistors for me. The IC in this schematic is a CR1510. ...
1 vote
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### Need help with identifying a SMD part

Can anyone please help in identifying this SMD part marked with "CP6W"? This is part of the power supply of a 8 inch tablet from China, "Chuwi Hi8 pro". My findings as of now are: ...
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### RCD snubber loss in flyback converter

I have few queries in analyzing the curves. Below is the flyback converter with RCD snubber circuit and waveforms. When the FET is turned ON, there is no primary current flowing through snubber as the ...
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1 vote
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### High side MOSFET driver - transistor design

A simple dc-ac converter in full bridge structure and the structure I created to drive the MOSFETs are given in the diagram below.The output of the converter is working properly. The circuit consists ...
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### How to determine the correct direction of the transformer winding (photo)

I'm winding a transformer for a DAB converter. Image link (MDPI - A DAB Converter with Common-Point-Connected Winding Transformers Suitable for a Single-Phase 5-Level SST System): https://www.mdpi....
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### Droop Control of a Grid Supporting Inverter and Simulating it in Simulink

Control of DC/AC inverter using Droop Control: I am having trouble taking this research papers proposal of how Droop Control can be used as a grid supporting voltage source and turning it into a ...
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### Push pull converter, ringing on mosfet drains

im building a dc-dc converter using center tapped transformer. The issue i have is ringing on mosfet drains staying through whole half wave. The voltage on capacitors on secondary side rectifier seems ...
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### Zero Voltage Switching (ZVS) in Conventional Full-Bridge DC/DC Boost Converter

I am trying to design a Conventional Full-Bridge DC/DC Boost Converter with the following parameters (I am not sure if you need them); Input voltage: 24 V (DC) Output voltage: 400 V (DC) Output ...
214 views

### Boost converter does not work according to the theories

I am still a beginner in this field so I would like to gain some insight about boost converters. I wanted to build a boost converter for a school project with this simple design. The parts were ...
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### Battery-Inverter-Converter Circular Flow

I am wiring up a switch in my travel trailer to go between shore power and inverter power. It makes sense to switch at the main 120v AC input that feeds my power distribution panel, and then switch ...
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### Driving a P-channel MOSFET with high voltage input

I designed a buck converter as an MPPT charger using high side switching. It seems the signal on the gate of the MOSFET good. If a solar panel with low voltage like solar MPPT 18volt there isn't a ...
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### ESP32 monitoring highpower LEDs

I’d like some help with a small project I’m working on. I want to use an ESP32 to do two things: -control dozens of HIGH POWER LEDs of this type: XLamp® XM LEDs Archives - Cree LED so that I can turn ...
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1 vote
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### Question on Turn-off Snubber Operation

I'm struggling to understand how this snubber circuit reduces power loss during the off time for this buck converter. Anybody able to explain it's operation / what is happening for each component ...
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### Boost converter's voltage stress

I know the answer is Vs=Vo, by simulation. BUT I don't know why. In steady state inductor is gonna be short. And Vs is parallel with Vin and Vout. Can you tell me what is wrong?
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### Understand firing angle chart in dual converter

How to understand below Firing Angle Chart, I guess the y axis should be voltage of the source, but what is the x axis, why a1/a2 points right, the location of 0⁰/90⁰/180⁰ seems quite strange. Hints ...
41 views

### Current Mode Control

I am referring the doc https://www.venableinstruments.com/current-mode-control-wp and trying to understand behavior of current mode control but unable to understand following things 1. What is the ...
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### Validate my 3V3 power system

My Power System, can someone validate it? I'm not familiar with using the TPS63060. Datasheet can be found at: https://www.ti.com/product/TPS63060 I'm trying to power a ATMega328p-AU + 4 digit 7-...
1 vote
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### Average Modelling of Buck Converter

I am doing Modelling of Buck Converter for LT3890 (Datasheet link attached) for Frequency response analysis . I have some reference model of Buck converter ,please refer below image Datasheet Link: ...
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### Voltage translator

I had an idea of a project to build which translate these respective voltages -3 0 and +3 volts into whatever the two variable power supply are delivering. See in the figure below the architecture I ...
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### Measure capacitance with Arduino and AD7746

I want to measure capacitance with an Arduino and an AD7746 capacitive sensor. I already used ChatGPT and some examples, but the sensor measures just 0 pF. When I measure with an LCR meter, the ...
134 views

### What is the relationship between the windings in a forward converter?

I'm trying to sketch the currents through each transformer winding of a forward converter. I also need to sketch the current through the source. I have a sketch of the current through the magnetizing ...
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### Can one boost converter power three 5 W loads in parallel?

I want to power three 12 V/5 W light bulbs in parallel. I have a 3.7 V Li-po battery which has a discharge rate of 20 A. I have an LTC1871 boost converter. Is it possible for me to power the circuit ...
1 vote
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### Transformer design and calculations

I am trying to find correct way of determining the transformer parameters. I provided a simple schematic of a PSFB (phase-shifted full bridge) converter below. How do we determine thr primary ...
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### SIMPLIS VPWL & IPWL resistor

I am trying to define RDS(on) to simulate the MOSFET to be used in one of the converter topologies in SIMPLIS. There are two different types of resistor in SIMPLIS defined as below: VPWL: The ...
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### Differential nonlinearity in converters

I've found multiple sources (eg. Microchip, Analog) saying something like "An ADC with DNL error less than ±1 LSB guarantees no missing code." If the DNL is calculated only as a width of the ...
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### TINA-TI - trouble with boost converter based on LM5002

I wanted to recreate the LM5002 circuit in the TINA-TI program, which I encountered for the first time today. I was inspired by the circuit from the link below: LM5002 Unfortunately, the effects of ...
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### Help understanding inductor formula in boost converter

I'm designing an LED light array and have chosen the MC34844 LED driver from NXP. I have elected to go with I2C control mode and a 14S8P array of blue LEDs with the following parameters: Input ...
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### Ethernet to UART (or RS232) conversion

For the PCB I'm designing, I need serial communication (1.8V UART, 3.3V UART, 5V UART or RS232, whichever is easiest) from an Ethernet connection (the devices connected to the Ethernet network will ...
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### BJT Zero-Crossing Detector for 40kHz Ultrasonic Signal - Distortion & Receiver Issues

General Information About the Project I am trying to design a zero-crossing detector circuit for convert the sinusoidal signal from an ultrasonic transducer to a square wave. Here is the image of ...
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### DC-DC boost Converter for a motor load

To give some context I have a 250 watt DC motor It is powering an electric race car for a school race my class is competing in. The rules say I have to use a specific unmodified motor supplied by 2, ...
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### Amplifying 0.333 Vac signal to 0..3.3 VDC signal: component selection

I am trying to convert a current transformer (60 Hz) signal with an output of 0.333 Vac to a 0..3.3 VDC input signal. I haven't worked on circuits like this in over 10 years so I come seeking wisdom. ...
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### Convert NIM logic levels to LVDS

For my application, I need to convert a negative voltage pulse which is in NIM logic ('1' is -0.8V, '0' is 0V) into LVDS signals. The other part of the problem is that a pulse width is approximately 0....
107 views

### 4.5V AC-DC converter problem

I have been designing a 120V AC mains to 4.5V DC supply. The circuit schematic is shown below. After assembling this converter it produced a large spark. Before connecting it I checked for shorts in ...
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### How to reduce 24V to 0V-5V variable through a pot with an output current of 3amp? [closed]

I want to build a 5v variable PSU. I found one on ebay but the output current is not good for my application, 10mA.
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### SATA to USB conversion: is it complex?

Recently I purchased a SATA to USB adapter. To be able to access 2.5-inch (laptop) and 3.5-inch (desktop) hard drives. To my surprise, there is a board to do the conversion. Question Why there ...
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### Forward biasing of diode bridge in a discontinuous mode operation of a three phase buck-boost derived power factor corrected converter

In this paper, they said that during mode 1 the diode bridge is forward biased because the output capacitor voltage is greater than peak line to line voltage but during mode 2 they are forward biased. ...
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### How to create a BCD to binary encoder that supports multi digit numbers using only logic gates [duplicate]

I've been thinking so long about how can I make a BCD to binary encoder that can encode BCD numbers like for example 11 or even 32767 into binary form (11 ---> 1011) but using only logic gates. I ...
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### Can I connect buck boost converters back to back?

I need to power a Bluetooth speaker (Beatbox Portable) with a battery pack while also allowing DC power in. I also want to use the input DC power to charge the four cell lithoum ion battery pack. Can ...
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### How does an AFE boost voltage?

I have an active front end unit that is connected to a 3 phase system. It's controlled via software and I can set a value for the DC bus voltage. When the input is the AC 3-phase, how does this ...
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### Design of an auxiliary power supply for high voltage converter

I have a half bridge converter going from 270V to 24V, and I need to create an auxiliary power supply for my controller/drivers/etc. So I need a design with a high step-down ratio in order to go from ...
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### Single phase current requirements and minimum transformer requirements

To start, a generator is not an option for my situation. I am looking to produce 208 V 3 phase delta using a rotary phase converter to power two robots. This is my first attempt at generating 3 phase ...
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### What are the effects on the converter circuit due to lower vs higher switching frequency?

I know that lower frequency and higher frequency are selected based on the application. But I read that higher frequency will usually have more EMI harmonic distortions. It would be nice if anyone ...
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### Synchronous buck converter using STM32 as feedback controller

I am planning to use stm32f103cbt6 MCU as a feedback controller (voltage or current) for a synchronous buck converter by using gate driver IC, mosfets, inductor, capacitor and etc. Is there any ...
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### How to divide 12V/15A buck converter output into two outputs with the same specs? [closed]

I am currently working on a project to build a mini-atx pc for a rover. Heres a simple schematic of it : The picoPSU Atx connector takes in 12V DC with a max of 15A peak and the zotac gpu 12V DC with ...