LM358 DIY Kit 9V/12V DC Accumulator Low-Voltage/Undervoltage Protection Suite-

show original title, US $256 – Picture 0

LM358 DIY Kit 9V/12V DC Accumulator Low-Voltage/Undervoltage Protection Suite-

show original title, US $256 – Picture 1

LM358 DIY Kit 9V/12V DC Accumulator Low-Voltage/Undervoltage Protection Suite-

show original title, US $256 – Picture 2

Lm358 Diy Kit 9v/12v Dc Accumulator Low-voltage/undervoltage Protection Suite- Show Original Title

US $256

, Shenzhen, China
May 3rd

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General Interest Hot Products title $16.90 title $1.96 title $1.59 title $1.75 title $3.20 title $5.35 title $7.90 LM358 DIY Kit 9V/12V DC Accumulator Low-Voltage/Undervoltage Protection Suite LM358 DIY Kit 9V/12V DC Accumulator Low-Voltage/Undervoltage Protection Suite The use of accumulator power causes the output voltage decreases,if the accumulator in low voltage for a long time,it will damaged.This suite can be used of testing 9V/12V accumulator output voltage,when accumulator in low voltage/under voltage,the red indicator lights up and the buzzer calls,which realized sound-light alarm,in order to achieve mastering accumulator discharging status. 1. Principle This suite has simple circuit and uses the LM358 chip,it used as voltage comparator.The comparison value is setted by potentiometer.When the input voltage is reduced to the setted value,the transistor turned on , LED lights, the buzzer calls. 2.Electrical Characteristics Operating Voltage:9v/12v DC Main chip:LM358 PCB size:32*26.7mm 3.Schematic diagram 4.Mechanical drawing 5.Components 6.Welding note Because of putting the silk print in a wrong place when designing. “9014” is placed the S8550 transistor(the suite only has S8550 transistor,hasn’t S9014 transistor), the positive and negative of buzzer is as showing : 7.Instructions 1). Wedding the component correctly,"IN+" and "IN-" link to the positive and negative of 8V/10.4V power 2). Adjusting the potentiometer, when LED lights up, the buzzer calls, then stop adjusting potentiometer 3). Using the "IN +" and "IN-" to link with the positive and negative of 9V / 12V power, when the voltage is lower than 8V / 10.4V, LED lights up,the buzzer calls. SHIPPING PAYMENT RETURNS FEEDBACK ABOUT US 1)All items will be shipped to your paypal address .Please update your latest address when you check out,and please make sure to provide us with correct,precise and detailed shipping address. 2)Most of the items will be shipped via Hongkong Airmail/Singapore Airmail .To US customers,we will send the package via E-packet . 3)All items will be shipped in 1-2 business days (excluding Sat,Sun & Holiday) after payment received and cleared. 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Condition:	New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller's listing for full details. ...	Brand	Not applicable
Type	Not applicable
Model	DIY
Color	Not applicable
MPN	Not applicable
Material	Not applicable
Country/Region of Manufacture	China