DC-DC 20A 300W step-down power supply module constant voltage constant current adjustable high-power charging module LED driver

Brief introduction of synchronous rectification technology: Synchronous rectification is a new technology that uses special power MOSFETs with extremely low on-state resistance to replace rectifier diode to reduce rectification lo. It can greatly improve the efficiency of the DC/DC converter and there is no dead-zone voltage caused by the barrier voltage. Power MOSFETs are voltage-controlled devicesand their volt-ampere characteristics are linearly related when conducting. When power MOSFETs are used as rectifiersit is required that the gate voltage must be synchronized with the phase of the rectified voltage to complete the rectification functionso it is called synchronous rectification. Synchronous rectification technology greatly reduces the rectification lo of the output terminal of the switching power supplythus improving the conversion efficiency and reducing the heating of the power supply itself. Module parameters: Module properties: synchronous rectification non-isolated step-down constant current constant voltage module CC CV Charger Module Scope of Application:High-power LED constant current drivelithium battery charging (including ferroelectric),4V6V12V14V24V battery chargingnickel cadmium nickel hydrogen battery (battery pack) chargingsolar panelwind turbine Input voltage: DC6-40V Output voltage: continuously adjustable (1.2-35VDC)Under 32V for a long time (applicable to applications where the input voltage is higher than the output voltage cannot be boosted) Output Current: maximum 20A within 15A for a long time (power tube temperature exceeds 65 degreesplease add a fan to heat diipationhigh voltage output please use the derating) Current limiting range: 0.2-20A (adjustment) if the module exceeds 65 degreesadd a fan. Minimum differential preure: 3v Operating frequency: 150kHz Conversion Efficiency: up to 96% efficiency is related to differential preure and use environment Output ripple: Ripple about 50mV (excluding noise) 20m bandwidth (for reference only) measured by input 24V Operating temperature:-10 to 75 )(please pay attention to the temperature of power tube in actual use. If the temperature is too highPlease strengthen heat diipation or reduce the amount) Potentiometer adjustment direction: clockwise (increase)counterclockwise (decrease) Output short circuit protection: with (instantaneous protection) constant current (currently set constant current value cannot be short circuit for a long time) Input reverse connection protection: none, Output anti-backflow: Noneused for load self-contained electricity or inductive load need to add 2 tubes! Wiring mode: wiring terminal Module size: 60*53 * 30MM Net Weight: About 85g Output Current regulation method:1. Adjust the CV potentiometer and set the output voltage to the voltage value you need according to your load requirements.2. Set the CC potentiometer for about 30 turns counterclockwise (that isset the output current to the minimum)connect the LEDand adjust the CC potentiometer to the current you need. If the battery is used for chargingafter the battery is dischargedit will be connected to the output and CC will be adjusted to the current you need. (when chargingyou must use the battery that has been discharged to adjust it accuratelybecause the more power the battery has leftthe smaller the charging current.) Wiring description:OUT: positive outputOUT-: output negativeIN: enter positive-IN: enter a negative numberCV: output voltage regulationCC: output current regulationEN: Enablelow level off output; Pausehigh voltage level effectiveWhen the input and output are groundedno-load CV output constant voltageCC output constant current