CL-51 PEH circuit, 3.3V DC or 5V DC output The CL-51 is an updated, smaller version of the discontinued CL-50. The CL-51 is a PEH circuit for harvesting energy from a broad range of piezo energy harvesters. The CL-51 is available in two versions: either with a stabilized 3.3V or 5V DC output. The CL-51 comes with a variety of header connectors and requires soldering. This allows the adaptation of the CL-51 for Fritz-boarding, low profile application, direct attachment to the MFC P2 Cantilever products, or direct attachment of wires. Specifications: Max. input voltage: ± 95V AC Max. output current 50mA Max. usable input current 57mA Output voltage 3.3V DC (Version CL-51-3.3) or 5V DC (Version CL-51-5) ±0.1% line regulation Typical output power 0 - 148mW @ 3.3V 0 - 225mW @ 5V depending on the available, harvested input energy Typical efficiency 82% at 1mA output current 86% at maximum output current Min. input energy for output to activate ~ 2.9mJ (CL-51 completely discharged) Min. usable energy > 2.4mJ Input voltage clamp 43V (DC side of the bridge rectifier) Min. input current 0.9µA Dimensions W x L x H 20mm x 30mm x 7mm Weight PCB weight approx. 7 gr For more information, please download the CL-51 manual from our Manual page.

CL-54 PEH circuit, dual PEH Input, 3.3V DC output The CL-54 was designed to aid in the testing and development of various piezo electric harvesting applications, which are used for the autonomous operation of µProcessors, sensors, and/or IoT systems. With its various features it is also very well-suited for general educational purposes and experiments. The CL-54 features two PEH A/C inputs, channel 1 and channel 2, which allow harvesting energy of two independent uni-morph PEHs, a bi-morph or a tri-morph PEH. The CL-54 was specifically designed to work with piezo electric energy harvester systems based on the P2 type MacroFiberComposite™. The device will also work with most other types and brands of d31-mode piezo electric energy harvesters. Specifications: Max. input voltage: ± 95V AC Max. output current 50mA output Out-1 800mA output Out-2 Max. usable input current 57mA PEH input Two independent PEH A/C inputs, allow two uni-morph PEHs, or one bi-morph or one tri-morph PEH Output voltage 3.3V DC ±0.1% line regulation Typical output power 0 - 148mW on output Out-1, 0 - 2.7W on output Out-2, depending on the available, harvested input energy Typical efficiency 81% to 92% depending on output current and jumper position J2 Min. input energy for output to activate > 0.3mJ Out-1, > 6.5mJ Out-2 Min. usable energy > 0.28mJ Out-1, > 2.2mJOut-2 Min. input current > 900nA Input voltage clamp 43V (DC side of the bridge rectifier) Dimensions W x L x H 40mm x 70mm x 14mm Weight PCB weight approx. 25 gr For more information, please download the CL-51 manual from our Manual page.