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  • TL082 formed Ni-Cd battery automatic charge and discharge ci

    2016-05-11 14:36:1967

    This circuit can make two cadmium nickel battery 3V or discharge in charges to 1.34V. when charge or discharge circuit automatically cut off, effective...

  • 9_V_BATTERY_LIFE_EXTENDER

    2016-05-11 14:31:5966

    Circuit provides a minimum of 7 V until the 9-V battery voltage falls to less than 2 V. When the battery voltage is above 7 V, the MAX630's IC pin is l...

  • UNIVERSAL_BATTERY_CHARGER_1

    2016-05-11 14:27:1782

    The charger's output voltage is adjustable and regulated, and has an adjustable constant-current charging circuit that makes it easy to use with most N...

  • Voltage Level Indicators for battery Using LM324

    2016-05-11 14:24:28184

    This circuit is a circuit diagram of an indicator to show battery voltage 12 volts. Working principle of this circuit is the battery voltage compared w...

  • Cellphone Charger Using Bike Battery

    2016-05-11 14:19:2463

    This is the simple and easy way to tap current from a Motor Bike battery to charge the Mobile Phone. Most of the Mobile Phone battery pack has three 1....

  • Lead Acid Battery Charger with Current Limit

    2016-05-11 14:10:4366

    The Lead Acid battery charger is based at charging voltage 2.4 V per cell, according to many manufacturers recommendations’. Pulse circuit the batter...

  • LT1020 Battery Backup Regulator circuit

    2016-05-11 13:44:2464

    A low-loss way to implement a”glitch-free” battery backup for a memory or similar circuit is shown on the following schematic diagram. To make LT10...

  • 3A battery charger

    2016-05-11 13:37:5673

    This design is a 3A battery charger intended for use with 5-cell Ni-Cd or Ni-MH battery packs (but can be modified to suit other numbers of cells). The...

  • 6V NiCd/NMH Battery Test Circuit - 10 Amp Constant Current L

    2016-05-11 13:24:2770

    I designed this circuit to test rechargeable six volt battery packs under constant current conditions. As designed, the circuit applies a 10 amp load t...

  • Exit Sign With Battery Protection(BC548)

    2016-05-11 13:23:1580

    This article briefly describes the Exit Sign With Battery Protection (BC548). This principle is easy to understand, but also very practical. Depth unde...

  • CIRCUIT PROTECTS BATTERY POLARITY REVERSAL

    2016-05-11 13:12:1566

    This simple circuit can protect a sensitive electronic circuit from an accidental connection of a battery with a reversed polarity. The N-channel FET c...

  • Auto-Off 12V NiCd Battery Charger

    2016-05-11 13:09:5978

    NiCd/NiCad battery charger circuit is still needed since some application demanding high current is still rely on NiCd type, since this type is still s...

  • 300_mA_STEP_DOWN_BATTERY_FOUR_CELL_NiCd_CHARGER

    2016-05-11 13:04:5662

    Low-current battery-charger circuits are required in hand-held products such as palmtop, pen-based, and fingertip computers. The charging circuitry for...

  • 24V lead acid battery charger circuit

    2016-05-11 13:01:4877

    Description. This lead acid battery charger circuit is designed in response to a request from Mr.Devdas .C. His requirement was a circuit to charge two...

  • Relay Fuse For Battery Charges Circuit

    2016-05-11 13:01:1673

    Charged capacitor C3 and momentary pushbutton switch S2 are used to momentarily energize relay RE 2. The batteiy under charge energizes the relay to ho...

  • Solar panel to battery switch circuit

    2016-05-11 12:59:5263

    When loading a battery during the day from a solar panel it can be partially discharging through the panel after nightfall. This solar panel power swit...

  • CAMCORDER_BATTERY_PROTECTOR

    2016-05-11 12:58:1261

    Many camcorder enthusiasts use their spare battery for powering video lights. Many such lights give no indication when the battery has gone flat. This ...

  • Battery Guard for Emergency Lights

    2016-05-11 12:57:5062

    As the name implies,emergency light is a source of light available during an emergency.It is an automatic system in which a rechargeable battery operat...

  • 12V Analogue Battery Volt Meter

    2016-05-11 12:55:5475

    This circuit is used to measure the voltage on a 12V (nominal) lead acid rechargeable battery system. It was specifically designed for use in solar pow...

  • BATTERY_TRICKLE_CHARGER

    2016-05-11 12:54:1569

    The circuit is built around an LM317T adjustable voltage regulator. Its output voltage (VOUT) is determined by the formula VOUT= l.25 (1+R2/R1). I chos...

  • Storage Battery Voltage Monitor (2)

    2016-05-11 12:53:4066

    Here we will introduce a storage battery voltagle monitor circuit composed of digital integrated circuit CD4011. The drivers can know whether the batte...

  • Single cell lithium battery charger CIRCUIT (LP2951)

    2016-05-11 12:48:42159

    This article describes the Single cell lithium battery charger CIRCUIT (LP2951). The principle is very simple, very practical. The circuit components c...

  • Car charger for Nicd Battery Packs

    2016-05-11 12:44:3362

    The Car charger for Nicd Battery Packs circuit is very suitable for portable charger, with a few components, allows you to build them in a small case.T...

  • BATTERY_CHARGE_INDICATOR

    2016-05-11 12:41:4768

    When a battery is charging, a voltage drop across RSENSE causes Q1 to conduct,and lights LED1. RSENSE should be chosen as follows:...

  • Battery Charging Circuit

    2016-05-11 12:32:05185

    Battery Charging Circuit Schematic Battery charging circuitis a circuit device used to input electrical energy to a rechargeable battery, or some other...

  • 12 Volt Car Battery Charger Circuit (MJ1504)

    2016-05-11 12:24:22376

    This article describes a 12 Volt Car Battery Charger Circuit (MJ1504). The principle is very simple, very practical. The circuit components can help yo...

  • Intelligent NiCd/NiMH Battery Charger

    2016-05-11 12:15:1668

    This cheap and easy to build NiCd/NiMH Battery Charger is suitable for automatically charging a wide range of batteries for many applications. Proper c...

  • 12Vdc Mobile Battery Charger

    2016-05-11 12:13:29137

    This circuit provides up to 20 V output from a 12-V automotive supply, to enable constant current charging o f Nicad battery assemblies up to about 18 ...

  • Battery charger circuit using L200.

    2016-05-11 12:04:5378

    ?Description. A very simple battery charger circuit having reverse polarity indication is shown here.The circuit is based on IC L200 . L200 is a five p...

  • HIGH_POWER_BATTERY_OPERATED_FLASHER

    2016-05-11 12:04:3965

    This flasher operates from a 12-volt car or boat battery. It offers 36 to 40-watts output, variable flash rate (up to 60 flashes per minute), independe...

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