More than 200 power supply designs for home construction This USB Stick contains over 200 different power supply circuits from the volumes 2001-2022 of Elektor. The article search feature allows you to search full-text content. The results are always displayed as pre-formatted PDF documents. Highlights Cuk Converter Automatic Battery Switchover Battery Voltage LED Digital Benchtop Power Supply Lithium-Ion Charger Solar Cell Charger Electronic Fuse High Voltage Regulator Power Supply for USB Devices Step-up Converter for LEDs Battery Management and much more... On the Stick you will also find a folder with additional material such as PCB layouts, Gerber files and software.
The Raspberry Pi 27 W PD USB-C power supply is designed specifically to power the Raspberry Pi 5. It is also capable of delivering 5 V/3 A, 9 V/3 A, 12 V/2.25 A, 15 V/1.8 A to PD-compatible products, making it a good and cost-effective power supply for many general applications, such as charging smartphones and tablets.
Specifications
Input
100-240 V AC
Output
5 A @ 5.1 V, 3 A @ 9 V, 2.25 A @ 12 V, 1.8 A @ 15 V
Connector
USB-C
Length
1.2 m
Color
White
Region
UK
This OWON DC Power Supply has a small body and is easy to carry due to its light weight. Featuring a 3.7" TFT LCD display, it has a maximum output power of 180 W and a resolution of 1 mV/1 mA.
Features
Channel
Single Channel Output
Total Output Power
180 W
Channel Output
0 - 60 V / 0 - 3 A × 1-CH
Display
3.7' color LCD display
Dimension
117 mm(L) × 194 mm(H) × 295 mm(D)
Weight
Approx. 5.8 kg
Interface
RS232
Specifications
Rated Output (0 ℃ - 40 ℃)
Voltage
0 - 60 V
Current
3 A
Load Regulation
Voltage
≤ 0.01% + 3 mV
Current
≤ 0.01% + 3 mA
Power Regulation
Voltage
≤ 0.01% + 3 mV
Current
≤ 0.01% + 3 mA
Setting Resolution
Voltage
1 mV
Current
1 mA
Readback Resolution
Voltage
1 mV
Current
1 mA
Setpoint accuracy (within 12 months) (25 ℃ ± 5 ℃)
Voltage
≤ 0.03% + 10 mV
Current
≤ 0.1% + 5 mA
Readback Resolution (25 ℃ ± 5 ℃)
Voltage
≤ 0.03% + 10 mV
Current
≤ 0.1% + 5 mA
Ripple/Noise (20 Hz - 20 MHz)
Voltage (Vp-p)
≤ 4 mVp-p
Voltage (Vrms)
≤ 1 mVrms
Current (rms)
≤ 4 mArms
Output temperature coefficient(0 ℃ - 40 ℃)
Voltage
≤ 0.03% + 10 mV
Current
≤ 0.1% + 5 mA
Readback temperature coefficient
Voltage
≤ 0.03% + 10 mV
Current
≤ 0.1% + 5 mA
Response Time
100 μs
Storage
5 groups of data
Working Temperature
0 - 40 ℃
The OWON SPE6103 is a 1-channel DC power supply (300 W) in a small body with features like over voltage and over current protection. It has a high resolution of 10 mV/1 mA. The 2.8" LCD displays the following information (constant voltage output, constant current output, cumulative running time, actual output power, channel output status, actual voltage output, actual current output).
Features
Small body for easy carry
High resolution: 10 mV/1 mA
List waveform editing output, editable 10 groups of timing output function
Low ripple/noise
Over voltage / over current protection
Output voltage and current curve monitoring function
Intelligent temperature control fan cooling
2.8-inch TFT LCD display
USB communication interface, support SCPI
Specifications
Model
SPE6102
SPE6103
Rated Output (0-40°C)
Voltage
0-60 V
0-60 V
Current
10 A
10 A
Output Power
200 W
300 W
USB Output
5 V/1 A (SPE Series) or suppout QC2.0, QC3.0, BC1.2, Apple, Huawei, Samsung fast charging protocols (optional)
Load Regulation
Voltage
≤30 mV
Current
≤20 mA
Power Regulation
Voltage
≤30 mV
Current
≤20 mA
Setting Resolution
Voltage
10 mV
Current
1 mA
Readback Resolution
Voltage
10 mV
Current
1 mA
Value Resolution (within 12 months) (25 ±5°C)
Voltage
≤0.1% ±30 mV
≤0.1% ±30 mV
Current
≤0.05% ±10 mA
Readback Value Resolution (25 ±5°C)
Voltage
≤0.1% ±30 mV
≤0.1% ±30 mV
Current
Ripple/Noise
Voltage (Vp-p)
≤50mVp-p
≤50mVp-p
Voltage (rms)
≤5mVrms
≤5mVrms
Current (rms)
≤30mAp-p
Output temperature coefficient (0-40°C)
Voltage
100ppm/°C
Current
200ppm/°C
Readback temperature coefficient
Voltage
100ppm/°C
Current
200ppm/°C
Response Time (50-100% rated load)
≤1.0ms
Storage
4 groups of data
Working Temperature
0-40°C
Included
1x OWON SPE6102
1x Power Cord
1x Quick Guide
1x USB Cable
1x Fuse
Downloads
User Manual
Programming Manual
Software
MDP-P906 has a built-in cooling fan, and maximum output power of up to 300 W, which meets a wider range of testing needs and application scenarios. Through 2.4 GHz wireless communication, it can be connected to MDP-M01 Smart Digital Monitor module to realize the free combination of multiple channels of 300 W per channel.
MDP-P906 has the index, stability and reliability comparable to a professional power supply. It can output pure current, and provide powerful functions such as programmable output, timing output, timing control, automatic compensation, boost mode, etc., making itself a real cost-effective, smart and customized programmable linear DC power supply.
MDP-P906 adopts a precision CNC machined aluminum alloy shell, with fine workmanship, novel, mini and beautiful appearance, it completely subverts the rigid image of traditional desktop power supply. With stackable modular design and wireless communication function, MDP-P906 can work independently or paired, both on the workbench, and be carried out for on-site maintenance. MDP-P906 is a perfect solution for electronic engineer, especially field application engineers to meet different needs of power sources.
Built-in silent cooling fan, instant cooling, ensure a stable and efficient output!
Smart linear compensation, constant voltage & constant current
Positive & negative output, series boost, parallel current sharing
Applications
Universal tests and teaching experiments in R&D laboratory
Maintenance of digital products
Property verification and fault diagnosis of devices and circuits
Emergency power supply for model airplanes and vehicles
Power supply testing of RF and microwave circuits or modules
Quality control and quality inspection
Supply purified power for high-accuracy digital-analog hybrid circuits and Hi-Fi audio devices
Specifications
Input
DC 4.2-30 V/14 A (Max)QC 3.0/PD2.0, 20 V/5 A (Max)
Output
0-30 V/0-10 A, 300 W (Max)
Conversion efficiency
95%
Output resolution
10 mV/2 mA, up to 1 mV/1 mA via Display Control module
Output accuracy
0.03%+5 mV0.05%+2 mV
Adjustment rate
Load adjustment rate <±0.01%Power adjustment rate <±0.01%
Ripple and noise
<250 uVrms, 3 mVpp; 2 mArms
Transient response
<4 uS
Safety protections
Input over-voltage, under-voltage, reverse connection protection, output over-current, back-flow protection and over-temperature protection
Others
Automatically shut-down and enter micro-power modeSupport USB firmware upgrade
Dimensions
112 x 66 x 20 mm
Weight
181 g
Included
1x MDP-P906 Digital Power Supply
2x Output Cable
1x User Manual
Downloads
User Manual v1.1
Firmware v1.32
The Power Delivery Board uses a standalone controller to negotiate with the power adapters and switch to a higher voltage other than just 5V. This uses the same power adapter for different projects rather than relying on multiple power adapters to provide different output; it can deliver the board as part of SparkFun’s Qwiic connect system, so you won’t have to do any soldering to figure out how things are oriented.
The SparkFun Power Delivery Board takes advantage of the power delivery standard using a standalone controller from STMicroelectronics, the STUSB4500. The STUSB4500 is a USB power delivery controller that addresses sink devices. It implements a proprietary algorithm to negotiate a power delivery contract with a source (i.e. a power delivery wall wart or power adapter) without the need for an external microcontroller. However, you will need a microcontroller to configure the board. PDO profiles are configured in an integrated non-volatile memory. The controller does all the heavy lifting of power negotiation and provides an easy way to configure over I²C.
To configure the board, you will need an I²C bus. The Qwiic system makes it easy to connect the Power Delivery board to a microcontroller. Depending on your application, you can also connect to the I²C bus via the plated through SDA and SCL holes.
Features
Input and output voltage range of 5-20V
Output current up to 5A
Three configurable power delivery profiles
Auto-run Type-C™ and USB PD sink controller
Certified USB Type-C™ rev 1.2 and USB PD rev 2.0 (TID #1000133)
Integrated VBUS voltage monitoring
Integrated VBUS switch gate drivers (PMOS)
The FNIRSI DPS150 is a high-performance adjustable DC power supply that features a USB-C input interface and multiple power supply modes, allowing precise adjustment of output voltage (0-30 V) and current (0-5 A).
It provides efficient, low-consumption, and stable output, equipped with multiple safety protection functions including overvoltage, overcurrent, overload, overheating, and reverse connection. It can be flexibly applied to serial connection of multiple devices, with rich and user-friendly display and operation, compact and portable design, meeting various application needs.
Features
30 V, 5 A, 150 W variable DC power with 0.01 V, 0.001 A precision, CC/CV modes, and <20 mV ripple to protect sensitive electronics.
Supports PC, QC, and DC inputs with programmable outputs and 6 preset voltage/current settings.
Compatible with 4 mm banana plugs, U-shaped terminals, and copper wires for various equipment.
8 safety mechanisms including overvoltage, current, short circuit, and overheating protection.
2.8-inch HD IPS screen with 90° flip, numerical and curve displays for easy monitoring.
Small, space-saving design for use in labs, repairs, and DIY projects.
Specifications
Input Voltage
5~32 V DC
Input Current
100 mA-5 A
Output Voltage
0-30 V
Output Current
0~5 A
Output Power
0-150 W
Input Way
PD fast charger
QC fast charger
Power bank
DC power adapters
Operating Environment
0-40°C
Load Regulation
0.49%
Full Load Efficiency
96.30%
Display
2.8 inch (320 x 240)
Dimensions
106 x 76 x 28 mm
Weight
178 g
Included
1x DPS150 Power Supply
2x Alligator clip wires (black & red)
1x C2C PD charging cable
1x 100 W PD GaN Adapter (EU)
1x Micro USB cable
1x Manual
Downloads
Manual
Firmware V0.0.1
The FNIRSI DPS150 is a high-performance adjustable DC power supply that features a USB-C input interface and multiple power supply modes, allowing precise adjustment of output voltage (0-30 V) and current (0-5 A).
It provides efficient, low-consumption, and stable output, equipped with multiple safety protection functions including overvoltage, overcurrent, overload, overheating, and reverse connection. It can be flexibly applied to serial connection of multiple devices, with rich and user-friendly display and operation, compact and portable design, meeting various application needs.
Features
30 V, 5 A, 150 W variable DC power with 0.01 V, 0.001 A precision, CC/CV modes, and <20 mV ripple to protect sensitive electronics.
Supports PC, QC, and DC inputs with programmable outputs and 6 preset voltage/current settings.
Compatible with 4 mm banana plugs, U-shaped terminals, and copper wires for various equipment.
8 safety mechanisms including overvoltage, current, short circuit, and overheating protection.
2.8-inch HD IPS screen with 90° flip, numerical and curve displays for easy monitoring.
Small, space-saving design for use in labs, repairs, and DIY projects.
Specifications
Input Voltage
5~32 V DC
Input Current
100 mA-5 A
Output Voltage
0-30 V
Output Current
0~5 A
Output Power
0-150 W
Input Way
PD fast charger
QC fast charger
Power bank
DC power adapters
Operating Environment
0-40°C
Load Regulation
0.49%
Full Load Efficiency
96.30%
Display
2.8 inch (320 x 240)
Dimensions
106 x 76 x 28 mm
Weight
178 g
Included
1x DPS150 Power Supply
2x Alligator clip wires (black & red)
1x Micro USB cable
1x Manual
Downloads
Manual
Firmware V0.0.1
Whatever the methods or even then financial means you have to make your circuits work, the power supply should rank high if not Number One in your considerations. The design block simply called “power supply” is hugely underrated both in electronics creation and repair. Yet, the “PSU” has enormous diversity and comes in wildly differing guises like AC/DC, generator, battery (rechargeable or not), PV panel, benchtop, linear or switch-mode, to mention but a few. The output ranges are also staggering like nano-amps to kiloamps and the same for voltages.This special covers the features and design aspects of power supplies.ContentsBasics
Battery ManagementWhat to be aware of when using (Lithium) batteries.
Fixed-Voltage Power Supply using Linear RegulatorsThe best result right after batteries.
Light Energy HarvestingA small solar panel is used in an energy harvesting project to manage and charge four AAA cells.
Mains Powered Adapter DesignBasic circuits and tips for transformers, rectification, filtering and stabilization.
LM317 Soft StartThe high inrush current pulse should be avoided.
Controllable RectifiersSome suggestions to keep the power loss in the linear regulator as low as possible.
Components
Worksheet: The LM117 / LM217 / LM317 Voltage Regulators
SupercapsLow voltage but lots of current… or not?
Reviews
JOY-iT RD6006 Benchtop Power Supply Kit
Siglent SDL1020X Programmable DC Electronic Load
Projects
Balcony Power PlantDIY solar balcony = speedy payback!
DIY LiPo Supercharger KitFrom handcrafted to mass market
Dual-Anode MOSFET ThyristorFaster and less wasteful than the old SCR
Battery JuicerDo not throw away, squeeze!
High-Voltage Power Supply with Curve TracerGenerate voltages up to 400 V and trace characteristics curves for valves and transistors
High Voltage Supply for RIAAFor RIAA tube preamps and other applications.
MicroSupplyA lab power supply for connected devices
Phantom Power Supply using Switched CapacitorsVoltage tripler using three ICs
The SMPS800RE Switch-Mode Supply for the Elektor Fortissimo-100Reliable, light and affordable
Soft Start for PSUBe nice to your power supply – and its load
UniLab 20-30 V, 3 A compact switch-mode lab power supply
Tips
Soft Start for Step-Down Switching Regulators
Low Loss Current Limit
Powerbank Surprise
A Virtual Ground
Battery Maintainer
Battery Pack Discharger
Connecting Voltage Regulators in Parallel
,
by Jean-François Simon
Fnirsi FNB58 USB Tester (Review)
The Fnirsi FNB58 is a versatile USB tester capable of performing a wide array of voltage, current, and energy measurements, as well as supporting numerous...