Pyramid Model : PSV300

30 Amp Hobbyist Bench Power Supply

Compact Bench Power Supply, AC-to-DC Power Converter (30 Amp)

Features:

• Regulated Home Power Supply Design
• AC-to-DC Power Conversion
• Provides Constant Source of DC Voltage
• Simple Electronic Plug-in Operation
• Hassle-Free Screw Terminal Connectors
• Eliminates the Need of Battery or External Power Source
• Rugged & Durable Housing Construction
• Built-in Cooling Fan
• Power ON / OFF Switch
• Electronic Overload & Short Circuit Protection
• Used for Component & Device Equipment Testing, Operation & Performance
• Pyramid Compact Hobby Power Supplies Safe for Tabletop Placement

Technical Specs:

• Amperage: Up to 30-AMP (Constant)
• Connectors/Hardwire Terminals: Red Positive (+), Black Negative (-)
• Power Output: 13.8V DC
• Power Supply: 115/230V AC, Switchable
• Dimensions (L x W x H): 8.5’’ x 8.3’’ x 2.6’’ -inches

The Pyramid Compact Power Supply provides convenient and reliable AC-to-DC power performance. Universal hardwired screw-type connection terminals are hassle-free and ensure compatibility with a wide range of device equipment & components. Simple electronic plug-in operation provides a constant source of DC voltage, allowing for quick and consistent power conversion. Switch-activated power control eliminates the need of an external battery or an additional power source — while the built-in electronic overload and short-circuit protection ensure safety of the operator & any connected electrical devices. The Pyramid Compact Bench Power Supply makes for a great addition to any hobbyist work desk or equipment testing station.

Technical Parameters:
Input voltage range: 6-65V
Output voltage adjusting range: 0-60V
Output current adjusting range: 0-8A
Output power: 0-400W
Output voltage setting resolution: 10mV
Output current setting resolution: 10mA
Power supply effect: CV< 0.5%+10mV CC< 1%+10mA
Load effect: CV< 0.5%+10mV CC< 1%+10mA
Output ripple: <40m Vpp (Input 54V, output 12V,current 5A)
100Hz wave transmission ratio: <1/10000
Typical efficiency: 88% (Input 54V, output 36V,current 3A)
Display accuracy of voltage & current: 10mV, 10mA
Display error of voltage: ±1%+20mV
Display error of current: ±2%+20mA
Response time: < 50ms
Storage operation: M0-M9, a total of 10 groups of data
Cooling mode: The module owns heat sink, please pay attention to ventilation
Operating ambient temperature: 0-40℃
Stored ambient temperature: -20-70℃
Working environment: Indoor use, max. humidity: 80%
Dimension (L×W×H): 135×95×38mm

Product Includes:
1× DC-DC Buck Converter

Technical Parameters:
Input voltage range:  DC6~60.00V 
Output voltage range:  0V~50.00V
Output current: 0~15.00A
Output power range: 0~750.0W 
Product Weight: about 113g
Opening size:  71mm*39mm 
Output voltage resolution: 0.01V
Output current resolution: 0.01A 
Output Voltage accuracy: ± (0.5% + 1 digits)
Output Current accuracy: ± (0.5% + 2 digit)
NOTE: Please make sure that the input voltage is 1.1 times higher than output voltage. Under large current circumstances, please pay attention to heat elimination.  

Note:
Input voltage range is DC 6-55V and 55v is the limit voltage, please leave a room to use, otherwise it will be burnt. 
The input must be DC power supply, not AC 220V, or else it will be burnt too. 
Though this module has reverse connection protection and output short circuit protection, you must be in strict accordance with connection description to connect. If you connect the supply power with output, the module will be burnt.

Package Includes:
1* DC Adjustable Constant Voltage Power Module
1* Digital Meter
1* Cable

Parameters:
Input voltage: 4.5-40V
Output voltage: 1.25-37V(consistently adjustable and recommend you adjust when in empty load)
Output current: 2A rated current and 3A Max(please add heatsink)
Load adjust ratio: +/-0.5%
Voltage adjust ratio: +/-2.5%
Transferring efficiency: 92% Max(the higher output voltage, the higher efficiency)
ON/OFF frequency: 150KHz
Output ripple: 200mV
Power consumption when in static state: only about 3A
Working temperature: -40 Celsius to 85 Celsius
Module feature: buck and non-isolated
Rectification method: non-synchronous rectification
Adjust method: please use a mini screwdriver to adjust output voltage by adjusting the potentiometer

Note:
1.Please add heatsink when the output power is larger than 15W
2.Please make sure the voltage difference between input voltage and output voltage is at least 1.5V to ensure stable output
3.Please note there is no reversed connection protection, so check the polarity of input voltage before power on to avoid burning due to reversed connection.
4.It has over-temperature and short-circuit protection.

Package includes:
1pcs LM2596 bare board

DROK Step Down Voltage Regulator 

Product Parameters:
Input Voltage Range: 10V-75V
Adjustable Output Voltage Range: 0-60V
Adjustable Output Current Range: 0-12A
Output Power: 0-720W
Output Voltage Setting Resolution: 10mV
Output Current Setting Resolution: 10mA
Power Supply Effect: CV＜0.5%+10mV  CC<1%+10mA
Load Effect: CV＜0.5%+10mV  CC<1%+10mA
Output Ripple: < 50mVpp（input 54V，output 12V，current 5A）
100Hz Fluctuation Transmission Ratio:< 1/10000
Typical Efficiency: 94% (input 54V, output 30V, current 5A)
Voltage Display Error:  ±1%+20mV
Current Display Error:  ±1%+20mA
Response Time: <50ms
Save Operation: M0~M9 10 groups of data

Product Features:
The DKP6012 DC-DC numerical control buck voltage converter is a programmable buck module with all-digital LED display which can display real-time voltage and current.
Compared to the similar product, you will find that this buck module has a compact size and it works efficiently and stable. 
We applied advanced microprocessor control for this buck module. Voltage and current can be adjusted accurately by pressing the button, you can adjust it to output constant voltage and current. 

Package Includes:
1 X DROK DC-DC Buck Converter Module

Feature:
Module Name: 12A DC Step Down Buck Converter
Module Type: Non-isolated step-down module
Module Size: 60*51*22mm
Input Voltage: 4.5V-30V
Output Voltage: 0.8V-30V ( continuously adjustable )
Output Current: 0A-12A 100W ( Can be up to 200W if enhance heat dissipation )
Work Temperature: -40 degree to + 80 degree
Switching Frequency: 300KHz
Transfer Efficiency: 95% (MAX)
Short-circuit Protection: Yes (Limited current 14A)
Over-temperature Protection: Yes (Automatically shut off the output once over temperature)
Reverse Voltage Protection: NO ( If need, please add large current tube.)
Connection Mode: Terminals or solder terminals. V-IN for input, V-OUT for output

The module has enhanced aluminum radiator and TVS tube, which make sure the work temperature be lower and safer. 50V/MLCC chip capacitor, combined with high frequency low resistance electrolytic condenser, make the output ripple lower.
Suitable for DIY of storage battery, power transformers, adjustable voltage regulator, 24V power supply, LED lights power supplies, industrial equipment step-down etc. and other work requirements. 12V to 3.3V, 12V to 5V, 24V to 5V, 24V to 12V and so on.

Transfer Efficiency test data:
Input 12V, Output 5V/10A, Efficiency 81%
Input 12V, Output 5V/6A, Efficiency 86%
Input 24V, Output 12V/8A, Efficiency 91%
Input 24V, Output 19V/6A, Efficiency 94%

Package Include:
1pcs 12A DC Step Down Buck Converter

Calibration Method:
Power-off status, press and hold the left button access the power, the display starts flashing, release the left button.
Using multimeter measured the output terminal voltage, if the measured voltage is greater than 5V, press the left button reduced the voltage to 5V;
If the voltage is less than 5V, press the right button to increase the voltage to 5V.
When the LCD display voltage of 5V(sometimes it shows 4.99V), turn off the power, the calibration is complete.

Performance:
Input Voltage: 5~23V, Max 23V, recommended to use within 20V.
Input voltage must be higher than the output voltage 1V above.
Please check the input positive and negative polarity before connecting, reverse may damage the components.

Output Voltage: 0~16.5V adjustable (It can save the last set voltage automatically).
Peak Current: 3A (Recommended use in 2A, accuracy of 1%, the minimum display 0.01A, less than 10mA will not be displayed.)
Conversion Efficiency: 95%
Load Regulation S(I) ≤0.8%
Voltage Regulation S(U) ≤0.8%

Packing List:
1 x DC-DC Adjustable Step-down Power Supply Module (assembled)
1 x Transparent Shell

PEMENOL DC 5V 12V 24V timer relay module function with timing, delay and cycle control. With dual MOS output, digital tube display and reverse connection protection function, our timer relay board can be widely used at smart home, tndustrial control, automatic irrigation, indoor ventilation and protection equipment.

Parameters:
Input voltage: 5.5-30V (when the input voltage is 5V, the buck-boost can also be realized, but the voltage and current measurement is not accurate; when it is lower than 4.7V, the under-voltage protection will work)
Output voltage: 0.5-30V
Output current: up to 6A
Output power: 60W
Voltage display resolution: 0.01V, accuracy error 1%
Current display resolution: 0.001A, accuracy error 1%
Conversion efficiency: about 88%
Soft start: Yes (very large power load module may fail when started)
Power protection: 60W
Overcurrent protection: 6A
Working frequency: 180KHZ
Fan rotation conditions: current greater than 3A, or power greater than 20W, or temperature greater than 40 °C.
Size: 72*59*43mm
Mounting hole: diameter 3mm
Weight: 107g
Package:
1x Buck Boost Converter Module

Note:
1.The module input IN- is forbidden to be shorted to the output OUT-.
2.Please ensure that the power of the power supply is greater than the power required by the output load!
3.If the module wants full load output, the input voltage should be 8V or more. When the input voltage is 5V, the output power is about 15W, and the voltage ammeter fails.The maximum current value of the module is 4A, which is limited by the maximum output power. For example, the output is 17V, and the current should be no more than 2A. This module has an output short circuit protection function. After short-circuit protection, the module automatically turns off the output, and the module can be restored after power-on.

Pattern Name: Numerical Control DC 6-55V to 0-50V 5A Step Down Stabilized Power Supply

Features:
Input voltage: 6-55V
Output voltage: 0V-50.00V
Output current: 0-5.000A
Output power: 0-250W
Weight: 113g
Size: 79 x 43 x 48mm
Cutting size: 71 x 39mm
Output voltage resolution: 0.01V
Output current resolution: 0.001A
Output Voltage accuracy: +/- (0.5% + 1 digit)
Output Current accuracy: +/- (0.5% + 2 digits)
Note: Input voltage must 1.1 times higher than the output voltage.
When large current circumstances, pay attention to heat elimination.

Wiring:
IN+: Input positive
IN-: Input negative
OUT+: Output positive
OUT-: Output negative
Note: Input voltage maximum is 55V, if input is greater than this limit may damage the meter.
Do not use the meter in AC power supply, and wiring should be exactly the same as the wiring diagram, or else it will cause damage.

For Buck Boost Converter, please check ASIN: B07GVK911F, B07GVJ3J8M

Package Including:
1pcs Numerical Control DC 6-55V to 0-50V 5A Step Down Stabilized Power Supply

Conclusion

By our suggestions above, we hope that you can found buck converter with variable output and cooling fan for you.Please don’t forget to share your experience by comment in this post. Thank you!