steval-ill022v1 solar-led streetlight controller with … sheets/st...photovoltaic or pv module)....
TRANSCRIPT
September 2010 Doc ID 14469 Rev 2 1/18
UM0512User manual
STEVAL-ILL022V1 solar-LED streetlight controller with 25 W LEDlamp driver and 80 W battery charger based on the STM32F101Rx
IntroductionThe solar-LED streetlight controller consists of one 80 W battery charger and one 25 W LED driver. During the daytime, when there is sufficient sunlight, the charger converts the electricity from the solar panel and charges the battery. At nighttime, the battery powers on the LED lamp as streetlight.
If it is rainy or cloudy for several continuous days, the battery will gradually run out of power. The controller then resorts to the AC mains supply to power on the LED until the battery has had time to fully charge again.
Main features of the solar-LED streetlight controller
■ Maximization of electricity conversion efficiency from solar panel by way of maximum power point tracker (MPPT)
■ Automatic day/night/weather detection
■ Automatic battery/mains switch over
■ Constant current control for LED lamp
■ Battery charge control
■ Optional LED lighting duration mode
■ Easy system monitoring via debug LED indicators
■ Full protection function for OTP, OCP and UVP
Figure 1. Snapshot of the solar-LED streetlight controller
www.st.com
Contents UM0512
2/18 Doc ID 14469 Rev 2
Contents
1 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.3 Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.4 Board operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 General description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Hardware description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.1 Board description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.2 Controller characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4 Operating instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.1 Hardware installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.2 Recommended peripheral parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.2.1 Solar panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.2.2 Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.2.3 LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.2.4 Mains switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.3 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5 DIP selection and LED indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.1 DIP selection switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.2 LED indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6 Schematic and bill of materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
UM0512 List of tables
Doc ID 14469 Rev 2 3/18
List of tables
Table 1. Description of functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Table 2. Recommended electrical parameters for solar panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Table 3. Recommended electrical parameters for battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Table 4. Recommended electrical parameters for LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Table 5. Symptoms and corrective action. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Table 6. DIP switch for LED lamp light-on time selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Table 7. LED indicator and error message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Table 8. BOM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Table 9. Pin strip header. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Table 10. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Safety instructions UM0512
4/18 Doc ID 14469 Rev 2
1 Safety instructions
Warning: The demonstration board must be used in a suitable laboratory by qualified personnel only, familiar with the installation, use and maintenance of electrical systems.
1.1 Intended useThe demonstration board is a component designed for demonstration purposes only, and shall not be used for domestic or industrial installations. The technical data and information concerning the power supply and working conditions must be taken from the documentation provided with the delivery, and must be strictly observed.
1.2 InstallationThe installation instructions of the demonstration board must be taken from the present document and strictly observed. The components must be protected against excessive strain. In particular, no components are to be bent, or isolating distances altered, during the transportation, handling or use. The demonstration board contains electro-statically sensitive components that are prone to damage through improper use. Electrical components must not be mechanically damaged or destroyed (to avoid potential risks and health injury).
1.3 Electrical connectionApplicable national accident prevention rules must be followed when working on the mains power supply. The electrical installation must be completed in accordance with the appropriate requirements (e.g. cross-sectional areas of conductors, fusing and PE connections).
1.4 Board operationA system architecture that supplies power to the demonstration board must be equipped with additional control and protective devices in accordance with the applicable safety requirements (e.g. compliance with technical equipment and accident prevention rules).
UM0512 General description
Doc ID 14469 Rev 2 5/18
2 General description
The solar-LED streetlight controller is the key element of the system, also comprising the solar panel, battery and LED streetlight (lamp). Figure 2 shows the structure of the system.
Figure 2. System block diagram
Each block’s function is described below.
● The sunlight delivers pockets of photons (solar energy) to the solar panel (also called photovoltaic or PV module). The photons (energy) are absorbed by the PV module and electrons are released.
● The electrons flow along the metal contact of the PV module and create electricity. The battery charger then converts the electrical energy and charges the battery.
● The battery stores the electricity supplied by the battery charger. The controller monitors the status of the battery.
● The LED lamp (LED streetlight) is activated by the LED driver. The LED light controller monitors the system and controls the light-on and light-off in daytime and nighttime.
● When the battery goes low, the controller sends an enable signal to the mains switch and the AC offline power supply is enabled.The AC offline power supply (not covered in this document) acts as a backup source to power the LED streetlight.
The solar-LED streetlight controller plays the key role in the system for electricity (solar energy) storage control and LED lamp light-on/-off control.
Hardware description UM0512
6/18 Doc ID 14469 Rev 2
3 Hardware description
3.1 Board descriptionTable 1 describes the various functions of the controller’s demonstration board. Figure 3 provides the top view of the board.
Table 1. Description of functions
Category Index Designator Description
System connectors
1 P1 Solar panel connector
2 P4 Battery temperature sensor connector (connected to NTC)
3 P5 LED lamp temperature sensor connector (connected to NTC)
7 P6 Mains enable output
10 P3 LED lamp connector
11 P2 Battery connector
HMI
4 SW1~SW4 DIP switch (1): mode selection
5 LED1~LED4 Debug indicators(2)
6
LED5, LED6
LED 5 (red) ON: battery charged
OFF: battery not charged
LED 6 (white) ON: battery full
OFF: battery not full
9 PB1 Reset
ICP interface 8 CN1 JTAG
1. Refer to Table 6 for dip selection mapping.
2. Refer to Table 7 for debug message mapping.
UM0512 Hardware description
Doc ID 14469 Rev 2 7/18
Figure 3. Top view of demonstration board
3.2 Controller characteristicsThe controller has the following characteristics.
● Battery operation voltage:
– 13.8 V max./11 V min. for 12 V system
● Charger:
– input voltage range ≤ 50 VDC
– output power ≤ 80 W
● LED lamp driver:
– output current 2.45 A
– output power ≤ 25 W
● Dimensions:
– 113 mm x 98 mm x 50 mm
Operating instructions UM0512
8/18 Doc ID 14469 Rev 2
4 Operating instructions
4.1 Hardware installationThe following steps are to install the hardware.
1. Connect an NTC resistor (battery temperature sensor) to P4 (refer to Section 3.1).
2. Connect an NTC resistor (LED lamp temperature sensor) to P5 (refer to Section 3.1).
3. Connect the mains switch controller enable input to P6 (refer to Section 3.1).
4. Set SW1~SW4 according to DIP selection mapping table (Table 6).
5. Connect P3 (refer to Section 3.1) to LED lamp.
6. Connect P2 (refer to Section 3.1) to battery.
7. Connect P1 (refer to Section 3.1) to solar panel.
4.2 Recommended peripheral parameters
4.2.1 Solar panel
4.2.2 Battery
4.2.3 LED
Table 2. Recommended electrical parameters for solar panel
Parameters Symbol Typ Unit Condition
Maximum power Pmax 80 W
Irradiance: 1000 W/m2
Module temperature: 25°C
Maximum power voltage Vpm 17.8 V
Maximum power current Ipm 4.52 A
Open circuit voltage Voc 21.82 V
Short circuit current Isc 5.01 A
Module efficiency ηm 13.42 %
Table 3. Recommended electrical parameters for battery
Parameters Typ Unit
Nominal capacity 50 Ah
Nominal voltage 12 V
Table 4. Recommended electrical parameters for LED
Parameters Typ Unit
Nominal power 25 W
Nominal current 2.45 A
UM0512 Operating instructions
Doc ID 14469 Rev 2 9/18
4.2.4 Mains switch
When the battery is low, a high logic level output is generated by the MCU, which then enables the mains power.
4.3 Troubleshooting
Table 5. Symptoms and corrective action
Symptom Corrective action
None of the LED(s) is powered on. The LED(s) include LED lamp, debug LED and battery status LED
– Set-up the system as per the hardware installation procedure described in Section 4.1.
– Check the mains enable signal on P6. A high logic level indicates that the battery voltage is too low to power the LED light. This status will persist until the battery is fully charged.
– Reset the system by pressing the reset button (PB1).
– Check the battery type and polarity. Only 12 V battery can be applied to this system. If the battery has previously been connected reversely, replace the fuse (F1) with a new one.
– Check that the LED lamp is available.
Battery status LED fails to light during daytime
– Set-up the system as per the hardware installation procedure described in Section 4.1.– Reset the system by pressing the reset button (PB1).
– Check that it is not too dark to enable the solar panel’s output.
– Check that the solar panel is available.
Dim LED lamp– Try to cool down the LED lamp.
– Check that the LED lamp’s lifecycle is still valid.
DIP selection and LED indicator UM0512
10/18 Doc ID 14469 Rev 2
5 DIP selection and LED indicator
5.1 DIP selection switchThe DIP switches DIP1, DIP2, DIP3 and DIP4 are used to define the LED lamp’s on time after the "switch on" signal has been received from the MCU. Table 6 describes the jumper positions of each switch. The positions 'L' and 'H' are shown in Table 1.
5.2 LED indicatorThe demonstration board has four LED indicators, LED1, LED2, LED3 and LED4, which are used to indicate any error messages during operation. Table 7 describes each type of error message. The messages are there to assist technicians in their troubleshooting and maintenance tasks.
Table 6. DIP switch for LED lamp light-on time selection
Status DIP 1 DIP 2 DIP 3 DIP 4 Mode description
1 L L L L Switch on LED for 5 minutes, then turn-off
2 H L L L Switch on LED for 2 hours during nighttime
3 L H L L Switch on LED for 4 hours during nighttime
4 H H L L Switch on LED for 6 hours during nighttime
5 L L H L Switch on LED for 8 hours during nighttime
6 H L H L Switch on LED for 10 hours during nighttime
7 L H H L Switch on LED for 12 hours during nighttime
8 H H H L Always switch on LED
9 - - - H Always switch on LED at nighttime
Table 7. LED indicator and error message
LED 1 LED 2 LED 3 LED 4 Error message
No error
Battery charger overheat
Battery overheat
LED driver overheat
LED overheat
Incorrect solar panel polarity
UM0512 DIP selection and LED indicator
Doc ID 14469 Rev 2 11/18
Battery over-voltage or under-voltage
Battery overcurrent
LED over-voltage
Abnormal LED driving current
Short-circuit in LED driver
Table 7. LED indicator and error message (continued)
LED 1 LED 2 LED 3 LED 4 Error message
Schematic and bill of materials UM0512
12/18 Doc ID 14469 Rev 2
6 Schematic and bill of materials
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C73
1uF
R16
10
R27
1.2K
R99
1K
R95
10K
C38
1uF
4
2
13 5
GN
D
POS
OU
TN
EG
VCC
U4
TS39
1ILT
GN
D
GN
D
GN
D
R26
10
12V
3
1
2
Q12
MM
BT
3
1
2
Q14
BC80
7
R96
47K
12V
C74
1uF
R22
10
R50
1.2K
R100
1K
R97
10K
C45
1uF
4
2
13 5
GN
D
POS
OU
TN
EG
VCC
U8
TS39
1ILT
GN
D
GN
D
GN
D
VDR
VDR
Vba
21
3
Q10
TYN
616R
G
GN
DR8
0.2
C75
22uF
C76
22uF
C9 22uF
12
LD6
Gre
en
R106
330
Mai
ns_E
nabl
eBA
T_FU
LL
15
24
L2 39uH
2 31
A
8 4
U1A
LM25
8D
5
67 B
84
U1B
LM25
8D R108
1K
R107
1K
GN
DR1
0920
KR1
1110
K
R110
10K
R112
10K
C83
100p
F
2 31
A
8 4
U5A
LM25
8D
5
67B
84
U5B
LM25
8D
R116
1K
R115
20K
GN
D
GN
D
R113
10K
R114
10K
R117
10K
U7V
CC
U7V
CC
GN
D
12V
U1V
CC
U1V
CC
GN
D
U5V
CC
U5V
CC
GN
D12
P6 CON
_B
GN
D
R105
10K
R118
10K
R102
560
R42
560
1 2
P1 Sola
r Cel
ls
12
P2Ba
tter
y
1 2
P3 LED
R104
10K
R103
1K
R82
10R8
510
R86
10
R87
10R9
010
R92
10R9
410
C61
330n
F
C63
330n
F
C69
330n
F
C70
330n
F
C71
330n
F
C72
330n
F
R119
10K
R120
10K
R121
10K
567
1 2 3
8
4
GndVo Gnd
Vin
NC
InhibitGndGnd
U11
L493
1ABD
33-T
R
C80
22uF
C44
22uF
C79
100n
F
C43
100n
F
1 2
D5
SMA
J24A
-TR
1 2 3 45678
S1 SW-D
IP4
R125
10K
R124
10K
R123
10K
R122
10K
R32
10K
NTC
R88
10K
NTC
UM0512 Schematic and bill of materials
Doc ID 14469 Rev 2 13/18
Table 8. BOM
Reference Value / generic part number Package /class
B1 One way 6x6 mm (SMD), 4.3 mm(H), tactile switch
C1, C6 1 µF (1210), 100 V, ceramic capacitor
C2, C3, C12, C14, C24, C36, C39, C41, C42, C43, C46, C48, C49, C50, C51, C52, C56, C57, C58, C60, C62, C65, C66, C67, C68,
C77, C79
100 nF (0603), 50 V, ceramic capacitor
C4, C5, C13 470 µF 63 V, Al-cap electrolytic capacitor
C7, C8, C35, C38, C45, C53, C73, C74
1 µF (0805), 25 V, ceramic capacitor
C9, C22, C34, C44, C75, C76, C80 22 µF 50 V, Al-cap electrolytic capacitor
C10, C11, C25, C26 220 pF (0805), 50 V, ceramic capacitor
C15, C20 1 µF (1206), 50 V, ceramic capacitor
C17 560 pF (0603), 50 V, ceramic capacitor
C18, C19, C30, C33 220 µF 50 V, Al-cap electrolytic capacitor
C23, C59, C61, C63, C69, C70, C71, C72
330 nF (0805), 50 V, ceramic capacitor
C27, C29, C32, C64, C83 100 pF (0603), 50 V, ceramic capacitor
C28 220 pF (0603), 250 V, ceramic capacitor
C47 10 µF (3528-21), 16 V, tantalum
C54, C55 20 pF (0603), 50 V, ceramic capacitor
CN1 20-way Box header (Right angle mounting), JTAG connector
D1, D11, D13, D17, D18, D19, D20, D21, D22, D23, D24, D25, D26, D27, D28, D29, D30, D31, D32,
D33, D34, D35, D36, D37
BAT46JFILM (SOD323), small signal Schottky diode
D2, D3, D12 15 V (SOD 80C), Zener diode
D4, D10 STPS20H100CFP (TO-220FPAB), power Schottky rectifier
D5, D9 SMAJ24A-TR(SMA or DO-214AC), 24 V 400 W
TransilTM (TVS)
D7 3.9 V (SOD 80C), Zener diode
D8 STPS1H100A(SMA or DO-214AC), power Schottky
rectifier
D14 STPS2045CFP (TO-220FPAB), power Schottky rectifier
D16 STPS1L60A(SMA or DO-214AC), power Schottky
rectifier
F1 10 A(2.54 x 7.2 mm, axial lead), 251 series
fuse
JP1 (see Table 9) 0.64x0.64 mm, 2 way 2.54 mm pitch, pin strip header
Schematic and bill of materials UM0512
14/18 Doc ID 14469 Rev 2
L2 (see Table 9) 39 µH Inductor
L5, L6 600 Ω @ 100 MHz(0603), Chip ferrite bead, 25%, 200mA
max.
LD1, LD2, LD3, LD4 80 mcd, yellow (0603), LED
LD5 45 mcd, red (3.0, diffused, radio lead), LED
LD6 10 mcd, green (3.0, undiffused, radio lead), LED
P1, P2, P3 Terminal block 2 Terminal, pitch 7.5mm
P4, P5, P6 Header, 2 pin HDR1x2, pitch 2.54mm
Q1 STP40NF10 (TO-220), N-channel MOSFET
Q2, Q4 STP75NF75FP (TO-220FP), N-channel MOSFET
Q3, Q5, Q6, Q7, Q11, Q12 MMBTA42 (SOT-23), NPN bipolar transistor
Q8, Q9, Q13, Q14 BC807 (SOT-23), PNP bipolar transistor
Q10 TYN616RG (TO-220AB), Triac
R1, R2, R3, R4, R9, R17, R18, R19, R20, R46, R47, R55
0.1 Ω (1206), 1%, resistor
R5, R7, R10, R12, R15, R16, R22, R23, R24, R26, R28, R31, R40,
R53, R10110 Ω (0805), 1%, resistor
R6, R13, R29 10 kΩ (0805), 5%, resistor
R8 0.2 Ω (Axial lead), cement, 2W, resistor
R11, R45, R48, R49, R59, R60, R61, R62, R63, R64, R65, R67,
R69, R95, R97, R104, R105, R110, R111, R112, R113, R114, R117, R118, R119, R120, R121, R122,
R123, R124, R125
10 kΩ (0603), 5%, resistor
R14, R27, R50 1.2 kΩ (0805), 5%, resistor
R21, R70, R71, R72, R73, R74, R106
330 Ω (0603), 5%, resistor
R25 1.8 kΩ (0603), 5%, resistor
R30, R33, R54 33 mΩ (1210), 1%, resistor
R32, R88 NTC, 10 kΩ (0805), NTC resistor
R34, R107, R108, R116 1 kΩ (0603), 1%, resistor
R35 24 Ω (1206), 5%, resistor
R36, R41 10 kΩ (0603), 1%, resistor
R37 12 kΩ (0603), 1%, resistor
R38, R39 4.7 kΩ (0603), 5%, resistor
R102 560 Ω (1206), 5%, resistor
Table 8. BOM (continued)
Reference Value / generic part number Package /class
UM0512 Schematic and bill of materials
Doc ID 14469 Rev 2 15/18
Note: STM32F101R4, STM32F101R6, STM32F101R8, STM32F101RB, STM32F101RC STM32F101RD and STM32F101RE are all equivalent for the purpose.
\
R43 9.1 kΩ (0603), 1%, resistor
R44, R89, R91, R93 3.3 kΩ (0603), 1%, resistor
R51 330 kΩ (0603), 5%, resistor
R52 120 Ω (0603), 5%, resistor
R56, R58, R96 47 kΩ (0603), 5%, resistor
R57 3.3 kΩ (0603), 5%, resistor
R66 1 MΩ (0603), 1%, resistor
R68 1.8 kΩ (0603), 1%, resistor
R75 150 kΩ (0805), 1%, resistor
R76, R78, R81, R84 10 kΩ (0805), 1%, resistor
R77, R80 82 kΩ (0805), 1%, resistor
R79, R82, R85, R86, R87, R90, R92, R94
10 Ω (0603), 5%, resistor
R83 39 kΩ (0805), 1%, resistor
R98, R99, R100, R103 1 kΩ (0603), 5%, resistor
R109, R115 20 kΩ (0603), 1%, resistor
S1 DIP switch 4 Position DIP Switch
T1 (see Table 9) 33 µH EER25.5, transformer
T2 (see Table 9) 1 mH Driver transformer
U1, U5 LM258D(SO8 narrow), dual operational
amplifiers
U2, U4, U8 TS391ILT (SO), single voltage comparator
U3, U9 TSC101AILT (SO), current sense IC
U6 L78L12ABD-TR (SO8 narrow), positive voltage regulator
U7 LM193D (SO8), dual voltage comparator
U10 STM32F101RXT6 (LQFP64), 32-bit microprocessor
U11 L4931ABD33-TR (SO8 narrow), linear regulator
X1 8 MHz (3 x 8), crystal oscillator
Reference Value / generic part number Package /class
Table 8. BOM (continued)
Reference Value / generic part number Package /class
Schematic and bill of materials UM0512
16/18 Doc ID 14469 Rev 2
Table 9. Pin strip header
Figure Description
Accessory for JP1 M20 series jumper socket
L2
– 1: 39 µH +/- 4% (W1//W2 and twisted)
– 2: Winding 1: pin 1 to pin 5 (18 turns CCW)– 3: Winding 2: pin 2 to pin 4 (18 turns CCW)
– 4: Wire gage: AWG31*20
– 5: Core: EER28-Z-PC40– 6: Bobbin: BEER28-1110CPFR
T1
– 1: 33 µH +/- 4% (W1+W3 at 50 kHz, 1 Vrms)– 2: Leakage < 0.1 µH (W2 short-circuit)
– 2: Winding 1: pin 1 to pin 5 (5 turns CCW)
– 3: Winding 2: pin 8 to pin 10 (10 turns CCW)– 4: Winding 3: pin 5 to pin 3 (5 turns CCW)
– 4: Wire gage: AWG31*20
– 5: Core: EER28-Z-PC40– 6: Bobbin: BEER28-1110CPFR
T2– 1: 1 mH (W1+W3 at 50 kHz, 1 Vrms)
– 2: Leakage < 10 µH (W2 short-circuit)– 3: No air-gap is required
– 2: Winding 1: pin 1 to pin 2 (17 turns CCW)
– 3: Winding 2: pin 8 to pin 6 (34 turns CCW)– 4: Winding 3: pin 2 to pin 3 (17 turns CCW)
– 4: Wire gage: AWG31
– 5: Core: EE10/11-Z-PC40
– 6: Bobbin: BE10-118CPSFR
UM0512 Revision history
Doc ID 14469 Rev 2 17/18
7 Revision history
Table 10. Document revision history
Date Revision Changes
08-Jan-2010 1 Initial release
28-Sep-2010 2
– Changed: connectors1: P1: solar panel connector
2: P2: battery connector
3: P3: LED lamp connector 4: SW1~SW4: mode selection DIP switch
– Battery use only 12VDC type
– Figure 1 changed due to the connectors outline changed– Re-new the connectors' location in Figure 3 which is based on the
description in Table 1– Figure 4, the schematic is updated
– Table 8, the BOM is updated
UM0512
18/18 Doc ID 14469 Rev 2
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