for further information contact your local stmicroe lectronics sales office. december 2015 docid025594 rev 3 1/10 STEVAL-ISV021V1 energy harvesting demonstration kit based on spv105 0 data brief features spv1050 based harvesting dongle board pv module soldered on the back lithium coin cell battery pv module electrical characteristics at 200 lux: C voc typ = 9.8 v, isc typ = 20 m a C vmp typ = 8 v, imp typ = 18 m a li-ion battery: C capacity nom = 120 mah C v nominal = 3.6 v C v charge = 4.2 v C v end-of-discharge = 2.75 v interface to power monitoring board pv module voltage and battery monitoring ambient light sensor for irradiance level measurement supported by sw gui to show mppt accuracy and conversion efficiency description the STEVAL-ISV021V1 is a demonstration kit which consists of a complete energy harvesting module based on the spv1050 ulp energy harvester and battery charger, having the purpose to show the electrical performance of the power converter and many other fundamental electrical quantities related to the overall system. the power manager is configured as a buck- boost converter, fitting the electrical characteristics of the mounted pv panel and battery. a power monitoring board along with a software gui are used to monitor and to graph both of pv panel and battery voltage and current, and system performances like mppt accuracy and conversion efficiency. the STEVAL-ISV021V1 represents the standalone harvesting module that can be interfaced with a wireless sensor node to provide the microcontroller, transmitter and sensors with the energy scavenged and stored into the battery. furthermore, the STEVAL-ISV021V1 embeds an extension connector to interface and to monitor of some of spv1050 input and output signals through a microcontroller based board. www.st.com
schematic and bill of material STEVAL-ISV021V1 2/10 docid025594 rev 3 1 schematic and bill of material the schematic, bill of material and gerber files ca n be downloaded from the design resources tab of the STEVAL-ISV021V1 product folder on www.st.com .
STEVAL-ISV021V1 schematic and bill of material docid025594 rev 3 3/10 figure 1. harvesting module schematic 9 % $ 7 7 $ 0 % , ( 1 7 / , * + 7 6 ( 1 6 2 5 6 7 2 5 ( / ' 2 / ' 2 / ' 2 b ( 1 / ' 2 b ( 1 & 2 1 ) 6 * 1 ' ( 2 & % $ 7 7 b & + * , 1 b / 9 % $ 7 7 b & 2 1 1 8 9 3 ( ; 7 ( 1 6 , 2 1 3 2 : ( 5 0 2 1 , 7 2 5 , 1 * 8 6 % ( ; 7 ( 5 1 $ / 6 8 3 3 / < + $ 5 9 ( 6 7 ( 5 $ 1 ' % $ 7 7 ( 5 < 0 $ 1 $ * ( 5 3 * 1 ' 0 3 3 0 3 3 6 ( 7 0 3 3 5 ( ) 6 2 8 5 & ( 3 9 6 2 8 5 & ( 6 7 2 5 ( 6 7 2 5 ( 9 e d w w 9 % $ 7 7 b r x w 9 % $ 7 7 b r x w % $ 7 7 b & + * % $ 7 7 b & 2 1 1 6 * 1 ' * 1 ' 6 2 8 5 & ( / b + 9 6 2 8 5 & ( 3 9 9 e d w w 9 % $ 7 7 b r x w 6 8 3 3 / < b 6 ) + $ 0 % , ( 1 7 b / , * + 7 b 3 , 1 $ 0 % , ( 1 7 b / , * + 7 6 7 2 5 ( , 1 b + 9 6 * 1 ' 6 8 3 3 / < b 6 ) + 6 * 1 ' 3 9 0 3 3 3 * 1 ' 6 8 3 3 / < b 6 ) + $ 0 % , ( 1 7 b / , * + 7 b 3 , 1 $ 0 % , ( 1 7 b / , * + 7 9 b 8 6 % $ 0 % , ( 1 7 b / , * + 7 b 3 , 1 $ 0 % , ( 1 7 b / , * + 7 $ 0 % , ( 1 7 b / , * + 7 6 7 2 5 ( / ' 2 b 9 / ' 2 b 9 / ' 2 b 9 / ' 2 b 9 / ' 2 b 9 9 e d w w / ' 2 b 9 / ' 2 b ( 1 % $ 7 7 b & + * % $ 7 7 b & 2 1 1 / ' 2 b ( 1 , 1 b / 9 8 5 p s s 0 2 k p 8 3 9 3 $ 1 ( / 7 3 / ' 2 & x ) 8 & 2 1 $ 7 3 / ' 2 5 x y s 0 2 k p & x ) 7 3 6 7 2 5 ( & x ) & 1 7 3 0 3 3 - 8 6 3 9 7 3 8 9 3 7 3 ( 2 & 6 % n 6 : 6 : 6 / , ' ( 6 3 6 7 5 p s s v - 0 l f u r 8 6 % - & x y s q ) 7 3 - / x + 5 h r f 0 2 k p 5 n 2 k p & x ) 6 % n & q ) 5 r x w 0 2 k p - 7 3 0 3 3 b 5 ( ) 5 l q 0 2 k p % 7 9 - 8 6 7 / 4 $ ' - * 1 ' 1 & , 1 2 8 7 7 3 0 3 3 b 6 ( 7 & q ) 7 3 - - 6 : 6 : 6 / , ' ( 6 3 6 7 & x ) & q ) $ 0 6 7 2 5 ( n 2 k p
schematic and bill of material STEVAL-ISV021V1 4/10 docid025594 rev 3 table 1. harvesting module bom sect. item qty. ref. part/value tolerance (%) voltage current watt technol. info. package manufacturer manufacturer code more informatio n battery 1 1 bt1 support for li-ion battery smd keystone 3008 2 1 j6 smd jumper pitch 100 mils smd fci 95293-101-03lf this jumper allows the connection of the store pin to the voltage regulator u4 in case the external sampling is off supply 3 2 u3 flexible pv panel smd sanyo am-1801 2 pv panels connected in series 5 1 j4 smd jumper pitch 100 mils smd fci 95293-101-03lf this jumper disconnects the pv panel u3 in case an alternative supply is required and connected to cn1 6 1 j5 3-way switch pitch 100 mils smd fci 95293-101-03lf this jumper allows the connection of the source to the harvester u1 in case the external sampling is off 7 1 cn1 2-way conn. pitch 100 mils smd fci 95293-101-03lf input connector for external pv panel or teg
STEVAL-ISV021V1 schematic and bill of material docid025594 rev 3 5/10 harvester/dc-dc controller section 8 1 u2 spv1050 st harvester and thin film battery manager mppt section 9 1 c6 1 f 15% 25 v x5r 0603 murata grm188r61e105ka12d inp ut capacitance 10 1 rmpp 10 m w 1% 0.1 0603 vishay crcw060310m0fkea resistor partitioning for mpp track 11 1 rmpps 680 k w 1% 0.1 0603 te connectivity crg0603f680k resistor partitioning for mpp setting 12 1 rin 3 m w 0.01 0603 vishay crcw06033m00fkea input resistor parti tioning 13 1 c34 10 nf 15% 16 v x7r 0603 murata grm188r71c103ka01d voltage sampling time constant capacitance 14 1 l1 22 h 20% coilcraft lps4018-223ml_ lps5010-223ml_ xfl2006-223me_ dc-dc inductor ldo1 15 1 sw1 3-way switch pitch 100 mils smd fci 95293-101-04lf close 1 - 2, ldo1 is disabled close 2 - 3, ldo1 controlled by external signal 16 1 c5 100 nf 10% 6 . 3 v x5r 0402 avx 04026d104kat2a ldo2 17 1 sw2 3-way switch pitch 100 mils smd fci 95293-101-04lf close 1 - 2, ldo2 is disabled close 2 - 3, ldo2 controlled by external signal 18 1 c4 100 nf 10% 6 . 3 v x5r 0402 avx 04026d104kat2a table 1. harvesting module bom (continued) sect. item qty. ref. part/value tolerance (%) voltage current watt technol. info. package manufacturer manufacturer code more informatio n
schematic and bill of material STEVAL-ISV021V1 6/10 docid025594 rev 3 battery management section 19 2 c9, c10 47 f 20% 6.3 v x5r 0805 kemet c0805c476m9pac7800 capacito r on store net 21 1 cuvp 470 nf 15% 10 v x5r 0603 murata grm188r71a474ka61d uvp voltage sampling delay time constant capacitance 22 1 ruvp 6.8 m w 1% 0603 vishay crcw06036m80fkea veoc = 4.15 v vuvp = 3.75 v 23 1 reoc 0.75 m w 1% 0603 vishay crcw0603750kfkea 24 1 rout 3 m w 1% 0603 vishay crcw06033m00fkea ambient light 25 1 u7 sfh5711 smd osram sfh 5711 ambient light sensor: place on the same solder side of the pv panel (u3) 26 1 r12 80 k w 1% 0.1 0603 vishay crcw060382k0fkea 27 1 j7 smd jumper pitch 100 mils smd fci 95293-101-03lf external supply from usb 28 1 u8 stlq50c- r sot323- 5l st stlq50c-r 29 1 sb49 5.36 k w 0.1 0603 panasonic era3aeb5361v 30 1 sb50 2.05 k w 1% 0.1 0603 vishay crcw06032k05fkea 31 2 c14, c15 1 f 15% 25 v x5r 0603 murata grm188r61e105ka12d 33 1 j23 smd jumper pitch 100 mils smd fci 95293-101-03lf disable charging from usb table 1. harvesting module bom (continued) sect. item qty. ref. part/value tolerance (%) voltage current watt technol. info. package manufacturer manufacturer code more informatio n
STEVAL-ISV021V1 schematic and bill of material docid025594 rev 3 7/10 external connections 34 1 j28 micro-usb smd molex 47346-0001 external charge from usb 35 1 j25 16-pin conn. 2.54 mm sdm samtec smh-108-02-g-d connector for future extensions 36 1 j27 16-pin conn. 2.54 mm smd samtec smh-108-02-g-d connector for power monitoring board spacers + nuts 37 4 screw support rs 325-687 and 525-701 table 1. harvesting module bom (continued) sect. item qty. ref. part/value tolerance (%) voltage current watt technol. info. package manufacturer manufacturer code more informatio n
layout STEVAL-ISV021V1 8/10 docid025594 rev 3 2 layout figure 2. layout - top view figure 3. layout - bottom view
docid025594 rev 3 9/10 STEVAL-ISV021V1 revision history 10 3 revision history table 2. document revision history date revision changes 28-nov-2013 1 initial release. 02-may-2014 2 updated board photography on page 1 (replaced by new photography). updated section 1: schematic and bill of material on page 2 (updated web link). updated table 1: harvesting module bom on page 4 (updated item numbering, added manufacturer code to screw support item, updated more information fo r several items). 18-dec-2015 3 updated board photo on the cover page.
STEVAL-ISV021V1 10/10 docid025594 rev 3 important notice C please read carefully stmicroelectronics nv and its subsidiaries (st) r eserve the right to make changes, corrections, enha ncements, modifications, and improvements to st products and/or to this document at any time without notice. purchasers should obta in the latest relevant information on st products before placing orders. st products are sold pursuant to sts terms and conditions of sale in place at the time of order acknowledgement. purchasers are solely responsible for the choice, s election, and use of st products and st assumes no liability for application assistance or the design of purchasers products. no license, express or implied, to any intellectual property right is granted by st herein. resale of st products with provisions different fro m the information set forth herein shall void any w arranty granted by st for such product. st and the st logo are trademarks of st. all other product or service names are the property of their respective owners. information in this document supersedes and replace s information previously supplied in any prior vers ions of this document. ? 2015 stmicroelectronics C all rights reserved
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