User Manual of HiModel 5A HV UBEC
Contents
1. User Manual of HiModel 5A HV UBEC 5 Amps High Voltage Switch Mode UBEC 1 Why do you need a high voltage UBEC The 5A HV UBEC is a switch mode DC DC regulator supplied with a 3 10 cells lithium battery pack and outputs a consistent safe power for your receiver gyro and servos It is very suitable for big electric RC models such as fixed wing aircrafts and helicopters above 4 cells lithium battery Using this UBEC the receiver can obtain the power supply directly from the main battery pack so the additional battery pack for receiver is unnecessary Compared with the linear mode UBEC the overall efficiency of the switch mode UBEC is much higher so it can extend the working time of the receiver battery pack and because a switch mode UBEC can significantly reduce the heat emission it can avoid the loss of control caused by the over heat problem which is frequently happened with the linear mode UBEC 2 Specification 2 1 Output Voltage 5V or 6V Changeable with an output voltage select switch 2 2 Continuous output current 5 Amps 2 3 Burst output current 7 5 Amps 2 4 Input 8V 42V 3 10 cells lithium battery pack 2 5 Quiescent current 20mA 2 6 Size 48mm 27mm 9mm length width height 2 7 Weight 37g 3 Features 3 1 Designed with an advanced switch mode DC DC regulator IC the max efficiency of the chip is up to 92 3 2 The output current is very large the continuous output current is up to 5 Amps and the burs2. t output current is7 5 Amps 3 3 With the output short circuit protection function and the over heat protection function 3 4 A metal shield covers almost all the electronic components and a specially made filter is attached with the output wires to significantly reduce the electromagnetic interference 3 5 With ultra wide input voltage from 8V 42V 3 6 Safe power on with the polarity protection function If the input polarity is not correct the UBEC can t work but it will not be damaged What you need to do is just swapping the battery pack s polarity 3 7 Shows the working status with an indicator LED lights when the output is in normal range 3 8 It has a switch to turn on or turn off the output 3 9 Accessory A step down voltage regulator www HiModel com 4 Wiring Method Voltage Changing Switch a Change The Output Voltage ae Pinl Output ja Pin2 Output 5V Switch 5A Output Indicator Pin3 KOF HV UBEC Ter r Input ms Ory Pin2 Output 6V Pin3 Output Filter 5 Special Explanation Although we have tried our best to reduce the electromagnetic interference caused by switch model UBEC it still may cause some interference to the receiver So please install the filter far away from the UBEC s main board and DON T stack the filter on the main board Please put the whole UBEC as far as possible away from the receiver 6 Ho
3. w to Use the UBEC 6 1 Change the output voltage The voltage is chosen by an output voltage select switch If the switch is located at Pin1 and Pin2 the output power is 5v If the switch is located at Pin2 and Pin3 the output power will be 6V Please refer to the wiring diagram on the left side 6 2 Working status indicator LED The LED shows whether the output is normal or not It lights when the UBEC has the normal output If it doesn t light please check the battery connections 6 3 Turn on or turn off the output Set to the ON position to get the output Set to the OFF position to switch off the output 6 4 About the step down voltage regulator Allowing use of Futaba servo models 9241 9251 9253 9254 9255 9256 and other digital servos not capable of handling 6V This small device can change the voltage from 6V to 5 3V When the UBEC s output is set to 6V the step down voltage regulator is useful Connect the regulator inline between the Gyro and the rudder servo Or between the receiver and the servo If you are using a servo that can accept 6V input the regulator is not required
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