Wiki

Analog Devices Wiki

English
English
简体中文
简体中文
日本語
日本語
Руccкий
Руccкий

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revision		Previous revision
resources:eval:user-guides:circuits-from-the-lab:cn0509 [24 Nov 2020 06:03] – test section Trisha Cabildoresources:eval:user-guides:circuits-from-the-lab:cn0509 [11 Mar 2021 03:51] (current) – links Trisha Cabildo
Line 1: Line 1:
 ======EVAL-CN0509-EBZ Overview====== ======EVAL-CN0509-EBZ Overview======
  
-[[ADI>CN0509]] 1 is a very wide input range USB charger capable of providing up to 2A at 5V from a wide range of DC sources including solar panels, fully charged or half-discharged car batteries, -48V telecom backup supplies, random stacks of alkaline cells, treadmill motors hacked to run as generators, wind turbines, etc. using the combination of wide input [[ADI>LTC7103]] buck converter and an isolated flyback converter [[ADI>LT8302]]. The circuit will accept any DC voltage from 5V to 100V and produce an isolated 5V supply via a standard USB connector. The outer case of many cell phones and other portable electronics are often electrically connected to USB ground. As such, isolation is necessary in situations in which the power source’s relationship to Earth ground is unknown.+[[ADI>CN0509]] is a wide input range (5V to 100V) USB charger capable of providing up to 2A at 5V from a wide range of DC sources including solar panels, fully charged or half-discharged car batteries, -48V telecom backup supplies, random stacks of alkaline cells, treadmill motors hacked to run as generators, wind turbines, etc. using the combination of wide input [[ADI>LTC7103]] buck converter and an isolated flyback converter [[ADI>LT8302]]. The circuit accepts DC voltage from 5V to 100V and produce an isolated 5V supply via a standard USB connector. The outer case of many cell phones and other portable electronics are often electrically connected to USB ground. As such, isolation is necessary in situations in which the power source’s relationship to Earth ground is unknown.
  
 The circuit will survive up to 100V reverse connection to a power source with a green LED indicating correct input polarity and red led otherwise. The circuit will survive up to 100V reverse connection to a power source with a green LED indicating correct input polarity and red led otherwise.
Line 15: Line 15:
 ===== Documents Needed ===== ===== Documents Needed =====
  
-  * [[https://analog.com/cn0509|CN0509]] Circuit Note+  * [[ADI>CN0509|CN0509]] Circuit Note
  
 ===== Equipment Required ===== ===== Equipment Required =====
Line 30: Line 30:
   * Connector **P1** is the screw terminal block for input supply   * Connector **P1** is the screw terminal block for input supply
   * Connector **P2** is the USB output connectors for the load   * Connector **P2** is the USB output connectors for the load
 +  * Test point **TP1** is the LTC7103 output voltage programming pin VPRG2. This pin is left floating to program the chip to have 12 V fixed output voltage.
 +  * Test point **PGOOD** is the LTC7103 Open-Drain Power Good Output pin
 +  * Test point **CLKOUT** is the LTC7103 Output clock signal pin
 +  * Test point **IMON** is the LTC7103 Average Output Current Monitor pin. This pin generates a voltage between 0.4V and 1.3V that corresponds to an average output current between 0A and 2.5A.
 +  * Test point **ICTRL** is the LTC7103 ICTRL pin that programs the average output current in constant current mode. This is left floating to set the average output current to 2.5A and the peak current limit to 3.7A
 +  * Test point **TP6** is the voltage input to the LTC7103
 +  * Test point **12V** is the 12V output voltage of the LTC7103
 +  * Test point **GND1** is the ground relative to input supply
 +  * Test point **VBUS** is the USB VBUS voltage which typically carries 5V
 +  * Test point **D-** is the USB data+ signal 
 +  * Test point **D+** is the USB data- signal
 +  * Test point **GND** is the isolated ground relative to output
 +
 \\ \\
 ==== USB Output Connectors ==== ==== USB Output Connectors ====
 {{ :resources:eval:user-guides:circuits-from-the-lab:cn0509:usb_stack.png?nolink&600 |}} {{ :resources:eval:user-guides:circuits-from-the-lab:cn0509:usb_stack.png?nolink&600 |}}
-  * Bottom receptacle (1) includes a USB Dedicated Charging Port (DCP) controller that enables high-current charging modes on devices from various manufacturers +  * Bottom receptacle (1) includes a USB Dedicated Charging Port (DCP) controller that enables up to 2A charging on devices from various manufacturers 
-  * Top receptacle (2) is for general-purpose charging+  * Top receptacle (2) is for general-purpose charging rated up to 500mA
 \\ \\
 ---- ----
 ==== Test setup ==== ==== Test setup ====
 {{ :resources:eval:user-guides:circuits-from-the-lab:cn0509:setup_2.png?nolink&850 |}}\\ {{ :resources:eval:user-guides:circuits-from-the-lab:cn0509:setup_2.png?nolink&850 |}}\\
-  - Connect the input DC supply to P1 on [[ADI>EVAL-CN0509-EBZ|EVAL-CN0509-EBZ]]. Ensure safe connection because it may deal with input voltages up to 100 V. +  - Connect the input DC supply to P1 on [[ADI>CN0509|EVAL-CN0509-EBZ]]. Ensure safe connection because it may deal with input voltages up to 100 V. 
  
 \\ \\
Line 64: Line 77:
 ===== Schematic, PCB Layout, Bill of Materials ===== ===== Schematic, PCB Layout, Bill of Materials =====
 <WRAP round 80% download> <WRAP round 80% download>
-[[http://www.analog.com/media/en/reference-design-documentation/design-integration-files/CN0509-DesignSupport.zip|EVAL-CN0509-EBZ Design & Integration Files]]+[[adi>media/en/reference-design-documentation/design-integration-files/CN0509-DesignSupport.zip|EVAL-CN0509-EBZ Design & Integration Files]]
   * Schematics    * Schematics 
   * PCB Layout    * PCB Layout 
resources/eval/user-guides/circuits-from-the-lab/cn0509.1606194232.txt.gz · Last modified: 24 Nov 2020 06:03 by Trisha Cabildo

Page Tools