ZK-SJVA-4X is a DC adjustable constant voltage constant current step down/up power supply module with LCD display. The LCD displays input voltage and output voltage, current, power and display status. The module is equipped with an adjustable stable output voltage and current. Set output current to meet the demand. It can be used as ordinary buck power supply module, charger and LED constant current driver.

Features:

• High voltage resistant terminal.
• High quality acrylic shell.
• Supports complete disability output.
• Anti-reverse protection.
• Short circuit protection.
• Undervoltage protection.
• Anti-backflow Protection.
• Automatic buck/boost voltage.
• LCD screen HD display.
• Charging function.
• Select output.
• Display input voltage.
• Display output voltage, current, power.
• Working status indicator.
• Multiple parameters are displayed simultaneously.
• High current, low heat.

Specification:

• Product Name:ZK-SJVA-4X 4A Step Down/Up Power Supply Module with Display
• Working Voltage: DC 5.5V-30V
• Output Voltage: DC 0.5V-30V
• Output Current:4A(4A need heat sink;3A is stable for long time)
• Output Power:50W(50W need heat sink;35W is for 3A)
• Voltage Display Range:0~30V
• Voltage Display Precision:+/-0.5V
• Voltage Display Resolution:0.05V
• Current Display Range:0~4A
• Current Display Precision:+/-0.3A
• Voltage Display Resolution:0.005A
• Conversion efficiency: About 94%
• Working current:30mA
• Soft Starter: Yes(Failure at high power load)
• Anti-reverse Protection:Yes
• Anti-backflow Protection:Yes
• Short Protection:Yes
• Work frequency:180KHz
• Working Temperature range:-20℃~85℃
• Working Humidity range:0%-95%RH
• Size:66*48mm

Button/Potentiometer/LED introduction:

• Long press means need pressing button for more than 3 seconds.
• ON/OFF:Short Press to select output. Long press is used to restore default settings.
• IN/OUT:Short Press to switch display input voltage or output voltage. Long press is used to switch display output current or output power.
• CV Potentiometer: Adjust output voltage. Increase the output voltage when rotating clockwise.
• CC Potentiometer: Adjust output current. Increase the output current when rotating clockwise.
• ON LED: Green LED.Output indicator. It will turn ON when there is a output at output terminal.
• CC LED:Red LED.Constant current output indicator. It enters the constant current state when the load current reaches the set current and CC constant current indicator turns ON.