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  • The micropower battery driver temperature sensor

    2016-05-11 20:27:5362

    Note: When it works at 25℃, it can adjust the output to 250mV, and the temperature range is 25 to 150℃, the accuracy is ±0.5℃....

  • Battery charging indicator circuit

    2016-05-11 20:25:5565

    Description. This simple circuit can be used to monitor whether a battery is charging or not. The voltage comparator IC LM393 is the heart of this circ...

  • Battery charge protection circuit composed of PTC component

    2016-05-11 20:23:4664

    PTC component and overvoltage protection component work together to complete the following jobs: 1, Aiming at the large current which perhaps damage FE...

  • Universal-battery-charger

    2016-05-11 20:23:33200

    When power is applied to the circuit, SCRl is off, so there is no bias-current path to ground; thus, L~317 acts as a current regulator. The LM317 is um...

  • Simple type nickel cadmium battery charger

    2016-05-11 20:21:4064

    If you open the switch K, the 220V AC city electricity will be transformed by the transformer B, then the current is rectified by D1-D4 to charge the t...

  • LEAD_ACID_BATTERY_CHARGER

    2016-05-11 20:12:5267

    This circuit furnishes an initial voltage of 2.5 V per cell at 25℃ to rapidly charge a battery. The charging current decreases as the battery charges...

  • MOSFET Battery Saver Circuit

    2016-05-11 20:11:3291

    The Battery Saver is designed to prolong the battery life in small toys and devices.The capacitor slowly discharges and the circuit turns off when the ...

  • Storage Battery Voltage Monitor (2)

    2016-05-11 19:58:5962

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

  • Lithium battery indicator

    2016-05-11 19:35:5269

    State-of-Charge indication of-a sloping-voltage discharge can be used as a state-of-charge indicator. A typical voltage comparator circuit that gives a...

  • Low_voltage_battery_to__5_V

    2016-05-11 19:31:3864

    By connecting a second inductor to the LX output of a MAX641 step-up dc/dc converter, the efficiency and power-handling ability can be dramatically imp...

  • Battery Charger Circuit 12V to 1.2V using MAX713, MC33171, L

    2016-05-11 19:29:5183

    Battery Charger Circuit 12V to 1.2V Battery Charger Circuit 12V to 1.2V using MAX713, MC33171, LM2904, NTE2904...

  • Battery_powered_12_volt_5_MHz_frequency_counter_using_McMOS_

    2016-05-11 19:23:2061

    Battery powered (12-volt) 5 MHz frequency counter using McMOS logic (cour tesy Motorola Semiconductor Products Inc.)....

  • Automatic Battery Backup (MAX931CPA)

    2016-05-11 19:18:4566

    This article describes the Automatic Battery Backup (MAX931CPA). The principle is very simple, very practical. The circuit components can help you unde...

  • BATTERY_SAVER_CIRCUIT

    2016-05-11 19:17:1064

    This battery saver circuit can automatically turn off a small piece of test equipment after a desired period of time, allowing you to leave your shop w...

  • USB Battery Charger for AA NiMH and NiCd

    2016-05-11 19:13:2480

    usb battery Charger usb Battery charger schematic The charger in this project is designed to charge two AA NiMH or NiCd cells of any capacity (as long ...

  • Automatically Charging Circuit of Battery

    2016-05-11 19:12:5877

    The above picture is automatically charging circuit of battery.This circuit consists of constant current circuit and automatically cut-off the circuit ...

  • Automatic Battery Backup

    2016-05-11 19:05:3571

    The diode-OR connection is the simplest link between backup battery and a main supply with a load. But, when the battery voltage is greater than main s...

  • The main circuit of the simple battery automatic constant cu

    2016-05-11 19:03:3062

    The main circuit of the simple battery automatic constant current charging circuit is as shown in the figure. It is composed of the transformer rectifi...

  • Storage Battery Exerciser(LM324)

    2016-05-11 18:55:4466

    This article briefly describes Storage Battery Exerciser (LM324). This principle is easy to understand, but also very practical. Depth understanding of...

  • Ni-Cd battery charger circuit diagram of timing

    2016-05-11 18:52:2863

    The circuit is a timed charger, charging time can be within 5 to 25 hours to adjust the charging process, such as a power outage, the circuit has accum...

  • Stand Alone 600mA Li-ion Battery Charger

    2016-05-11 18:51:2074

    A constant-current/constant-voltage linear charger for single-cell lithium-ion (li-ion) can be constructed using only a tiny battery charger controller...

  • USB Battery Replacement by LM317

    2016-05-11 18:48:3265

    My wife likes to listen to more music. But my son likes to play computer games a lot. At home we have a single computer. When ours son play game. The m...

  • Lead Acid Battery Charger (MAX733)

    2016-05-11 18:11:1782

    This article describes a Lead Acid Battery Charger (MAX733). The principle is very simple, very practical. The circuit components can help you understa...

  • Ordinary thyristor measured by battery

    2016-05-11 18:04:4464

    It takes four 1.5V batteries connected in series, then switch S is connected, E1 cathode is connected to anode of ordinary thyristor VS by lamp HL. E2 ...

  • Battery Low Voltage Beeper CIRCUIT (2N3906)

    2016-05-11 18:01:4771

    This article describes the Battery Low Voltage Beeper CIRCUIT (2N3906). The content is very simple, very helpful. Components in this article can help y...

  • THREE VOLT LOW BATTERY VOLTAGE FLASHER

    2016-05-11 18:01:1965

    This circuit is designed to monitor two alkaline cells (3v) that form the battery often used in portable electronic equipment. It use an inexpensive IC...

  • BATTERY_SWlTCH_OFF

    2016-05-11 17:54:4766

    Can be added to any battery-operated device to eliminate unnecessary running down of costly batteries when someone forgets to tum switch off manually. ...

  • 9V battery indicator circuit

    2016-05-11 17:49:5965

    This is a very simple 9V low battery indicator circuit which has 2 LEDs, one green which will light up when the battery voltage is higher than 6.9 volt...

  • Alkaline_battery_switching_regulator

    2016-05-11 17:39:5063

    Figure 8-71 shows an LT1270 connected to provide a 6-V, 1-A output using three or four alkaline-battery cells (instead of NiCads). The output voltage c...

  • LM317 universal battery charger circuit

    2016-05-11 17:38:42496

    Battery charger circuits This universal battery charger is based on LM317 and has an adjustable regulated output voltage and also has an adjustable con...

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