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  • Developing An Advanced, Predictive Battery Health Monitoring Solution With A Low-cost Microcontroller Solution
    measurements. Although both technologies can be implemented on their own to measure battery health, combining the two in a simple fashion on a low-cost microcontroller platform further increases the usefulness of the information collected. With many applications - automotive start-stop systems, advanced
  • DC/DC Converter Controller Using a PICmicro Microcontroller
    of those applications, a dedicated Switched Mode Power Supply (SMPS) Controller IC is used in conjunction with a microcontroller. In other applications, however, a dedicated SMPS Controller IC may be overkill. An alternative approach is to generate a low cost SMPS function in a smart microcontroller
  • Ultra Low Power Microcontroller Backup Using the EnerChip TM CC
    Cymbet EnerChips are solid state rechargable batteries having distinguishing characteristics compared to conventional rechargeable batteries. EnerChips have a high charge/discharge cylce life; low self-discharge; simple voltage controlled charging; flat discharge voltage profile; have no flammable
  • Low-Voltage 16-Bit I2C and SMBus I/O Expander with Interrupt Output, Reset, and Configuration Registers (.pdf)
    This 16-bit I/O expander for the two-line bidirectional bus (I2C) is designed to provide general-purpose remote I/O expansion for most microcontroller families via the I2C interface [serial clock (SCL) and serial data (SDA)]. The major benefit of this device is its wide VCC range. It can operate
  • Transformerless Power Supplies: Resistive and Capacitive
    voltage to only the microcontroller and a few other low-current devices, transformer-based or switcher-based power supplies may not be cost effective. The reason is that the transformers in transformer-based solutions, and the inductor/MOSFET/controller in switch-based solutions, are expensive
  • Resistance and Capacitance Meter Using a PIC 16C622
    The PIC16C62X devices create a new branch in Microchip?s PIC16CXXX 8-bit microcontroller family by incorporating two analog comparators and a variable voltage reference on-chip. The comparators feature programmable input multiplexing from device inputs and an internal voltage reference
  • Multiple PWM Output Soft-Start Controller For Switching Power Supplies
    This Technical Brief describes a microcontroller-based soft-start controller for power supplies in systems with multiple voltages. Sometimes applications have devices with multiple voltage requirements (e.g., core voltages, I/O voltages, etc). The sequence in which these voltages rise is important
  • Tranformerless Power Supply TechBrief
    in cost as well as in size. The disadvantages of using a transformerless power supply are: (1) low cur¬rent supply and (2) no isolation from the AC line volt¬age. The PIC12/16/17 microcontrollers draw a maximum of 10 mA, even at the highest frequency and voltage of operation, therefore low current

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