EH4205 Micropower Step Up Low Voltage Booster Modu

By Advanced Linear Devices, Inc. 142

EH4205 Micropower Step Up Low Voltage Booster Modu

Advanced Linear Devices' EH4205 micro-power step up low voltage booster module, part of the EH4200 series of micro-power step up low voltage boosters, is a self-powered voltage-booster module that converts a low DC voltage input to a higher AC or DC voltage output suitable for many low-power energy harvesting applications using photodiodes, thermoelectric or electromagnetic generators as the input source. The EH4205 does not need a separate power supply to operate, and it derives its power directly from the low input voltage source. The EH4200 series draws input power levels starting at as low as 200 µW, which enables an on-board, self-starting oscillator. The EH4205 features nominal input impedance of 50 Ω, making it suitable for many different energy generating sources.

The EH4205 is designed primarily for driving loads such as the ALD EH300/EH301 series energy harvesting modules. The AC outputs of the EH4205 are connected directly to the input terminals of the EH300/EH301 series energy harvesting modules with a two-wire cable. They can also be used for trickle-charge applications such as a battery or super-cap charger, including situations where the energy input is not well controlled or regulated. For certain applications, the EH4205 can also be used without the EH300/EH301 series energy harvesting modules

Features
  • Nominal input impedance of 50 @ VIN = 0.25 V
  • Small footprint and volume less than 1 in3
  • Simple and easy-to-use; just connect a 2-wire input source and 2-wire output load
  • Ready-to-use out of the box; no circuit design required
  • Direct interface to ALD's EH300/EH301 series of EH Modules
  • A range of models suitable for a variety of energy generating sources
  • Self-starting at both very low operating voltage and low operating current levels
  • Self-contained booster with all components on-board
  • Built-in on-board miniature transformer for high-efficiency energy conversion 
  • Unique custom on-board EPAD® MOSFET arrays
  • Optional user-installed full wave rectifier on board to produce DC voltages
  • Compatible with a wide range of voltage sources and a wide range of source impedances
  • Adaptable for use with a broad range of applications
  • No calibration or setup required
  • Maintenance free operation
  • Long operating life
  • Virtually unlimited operating cycles
  • Moisture and dust protection
  • RoHS compliant
Applications
  • Charge EH300/EH301/EH300A/EH301A series EH modules from low voltage sources
  • Energy Harvesting from low-voltage micro-power energy-generating sources
  • Direct or Indirect remote-node power supplies for wireless sensor networks
  • Low duty-cycle metering, control, and sensing networks
  • Energy capture from Intermittent energy sources
  • Backup power for switching between different power sources
  • EH energy capture, storage, and power management from mechanical, thermal, chemical, solar, biological, and human body sources
  • EH based battery substitution and/or remote battery charging systems
  • Hybrid or alternative power source conditioning

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