Descrizione
The ZK-4KX is a DC-DC step-up/step-down (buck-boost) converter with constant voltage (CV) and constant current (CC) control. It allows for continuous adjustment of the output voltage and current limit, displays operating parameters on the LCD, and is suitable as an adjustable power supply for powering from DC inputs in the range of 530 V.
Technical specifications
Model: ZK-4KX
Type: DC-DC buck-boost regulator, CC/CV modes
Input voltage: 5-30V DC
Output voltage: 0.5-30V DC
Output current setting (limit): 04.0 A
Output power: 35 W with natural cooling, up to 50 W with enhanced cooling
Voltage display resolution: 0.01 V
Current display resolution: 0.001 A
Switching frequency: 180 kHz
Conversion efficiency: 88%
Dimensions: 79 x 43 x 26 mm
Weight: 92 g (including packaging)
Functions and features
LCD display: input voltage, output voltage, output current, output power, capacity (Ah) and time
Output setting using rotary encoder, SW and U/I buttons
Output ON/OFF option
Soft start
Input polarity protection (anti-reverse connection)
Output reverse current protection (external blocking diode required for battery charging)
Integrated PI filter for ripple reduction
Aluminum heatsink on the power section
Adjustable software protections with automatic output disconnection when thresholds are exceeded
Supported protections: input undervoltage (LUP), output overvoltage (OUP), overcurrent (OCP), overpower (OPP), overtemperature (OTP), timeout (OHP), capacity limit (OAP)
Ideal for
Adjustable DC power supply for development, service and laboratory use
Powering devices requiring stabilized voltage during input fluctuations
LED applications and loads requiring current limiting (CC)
Charging applications with current limit (with the addition of an external blocking diode depending on the battery type)
Installation in devices and switchboards with DC power supply 530 V
Package contents
DC-DC converter ZK-4KX
Why choose this product?
The combination of buck and boost modes allows you to maintain the desired output voltage over a wide input voltage range
CC/CV modes allow you to set both voltage and current limit simultaneously for safer load operation
LCD provides direct control over key parameters in real time
Adjustable protections and automatic output disconnection when limits are exceeded
Installation and operating instructions
Observe the correct connection of the IN and OUT terminals; direct connection of IN and OUT is prohibited and will cause the CC control to malfunction.
For long-term operation above 35 W or above 3 A, ensure increased cooling (e.g. airflow)
For full power, choose an input voltage with sufficient margin for the desired output and load power.
When charging batteries, add an external reverse current blocking diode to the output according to the application requirements.
Safety notice
This is a power DC-DC converter; at higher currents and powers there is a risk of overheating of the wires and terminals, use appropriate wire cross-sections and high-quality tightening of the terminals
Incorrect polarity, short circuit or insufficient cooling may damage the module or the connected load.
Follow ESD and safe handling of electronic devices when working





Recensioni
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