MCP3421 Battery Fuel Gauge (SAN_BLK)
Hi ,I am trying to work for calculating battery discharge time and I am unable to understand the logic in fig2.1 MCP3421 Battery Fuel Gauge Computation Algorithm, in MCP3421 Battery Fuel Gauge Demo...
View ArticleHow to generate Switching frequency in MCP1911x (vairam.emb)
Hi I am using MCP1911x microcontroller. I want to generate a PWM in HDRV and LDRV to drive the MOSFET. It tried the following code , but it's not workingPWMRL = 0X0A; PWMPHL = 0X00; PR2 = 0X19; T2CON =...
View Articlei2c ADC MCP3421 (SAN_BLK)
Hi DarioG, I am trying to work for calculating battery discharge time and I am unable to understand the logic in fig2.1 MCP3421 Battery Fuel Gauge Computation Algorithm, in MCP3421 Battery Fuel Gauge...
View ArticleHV9901 Universal Relay Driver - has anyone got one working? (ric)
This is a Supertex chip that MC have inherited.The product page is at http://www.microchip.com/wwwproducts/Devices.aspx?product=HV9901but it simply has an old datasheet, no decent examples or...
View ArticleICD3 Debugger Issue: Target detected but failed to program device (Tharini)
Dear All, I use PIC32MX controller with 9v power supply. When i try to debug using MPLAB ICD3 Debugger, my power LED at board goes off and i'm getting a burning smell at the debugger RJ port. In my IDE...
View ArticleUSB5734 and JTAG (pchew)
Hi, I am using the USB5734 in my design. I connected the chip in the JTAG chain. I checked in the USB5734 Evaluation Board schematic that the chip has all the JTAG pins. However, JTAG is not mentioned...
View ArticleBandpass Filter Design (Shrikantbhise12192)
Hello, Everyone I've attached one file and there i tried to design a bandpass filter for 50hz.i.e. i should get maximum gain at 50 and i got the result as im expecting but whenever i dont give any...
View ArticleMCP1603 design help. (Leucemidus)
Hi to all. I want to use MCP1603ADJ to obtain 3.3v/2.5v/1.8v/1.2v from 5v for powering devices that use that voltage levels. The datasheet says that this can be done with two resistor voltage divider,...
View ArticleMCP3914 ADC input configuration (NotchFilter)
Hi,I'm using the MCP3914 in an application where we measure mains voltage and determine THD, power quality factor, etc. The MCP3914 inputs are AC coupled with previous stage, which is an OPAMP buffer...
View ArticleMCP39F511 Power-Monitor Auto Calibrate not working - logged steps attached...
OK, I have a MCP39F511, and I'm trying to use the auto calibration commands, yet my device is still not calculating the right results. I have attached the log stream of the Arduino "Writing" and the...
View ArticleSoftware application for MCP2221 device (rakhesh)
Hi, We have to develop a software application using Visual Studio for MCP2221 device .This is for USB to I2C conversion.Is there any design guide or support document for doing the same. In the...
View ArticleSPI problem in pic32mz2048ech144 ... a4 revision... (uday@remalfas)
if(DRV_SPI0_TransmitterBufferIsFull()==0) { //DRV_SPI0_BufferAddWriteRead(&txbuf,&rxbuf,size1); //PLIB_SPI_BufferWrite(SPI_ID_1, ((uint8_t*)txData)); while ((count +=...
View ArticleMCP39F511 reports wrong values at fast load changes (mri)
I'm currently evaluating the MCP39F511 Power-monitoring IC using the ADM00667 Demonstration Board. I want to measure 230VAC 50Hz power for short sine wave pulses, i.e. when the load is switched ON or...
View ArticleQuestion on PAC1720 (wdssll)
Hi,For the dual channel power monitor PAC1720, anyone know if the current of the two channel can be measured simultaneously? Is there one ADC or two ADCs inside the chip? If there is only ADC with...
View ArticleMCP1253 Max input voltage (Youraagh)
The MCP1253 has a maximum input voltage is 6V. A similar part like the CAT2300 has a maximum rating of 7V. It's triple the price and from a different manufacturer, I'm also using the MCP73831 so I...
View Articlecan I use MCP39F511 chip for voltage measurement if not please suggest me...
Hi we made a automatic cut off device it automatically turned off the loads if the voltage is higher than 270 v and if the voltage is less tha 160 volt presently we are using a voltage transformer...
View ArticleDefault values of some bits in CONFIG1 register of MCP3910 missing in...
As the subject says following bits are missing their default values in the datasheet: SHUTDOWN<1:0>,VREFEXT,RESET<1:0> Also, it is not mentioned which value (1 or 0) refers to what state....
View ArticleAble to get only one ADC measurement using MCP3910 (abdul2hannan)
HI,I'm using MCP3910 with PIC32MZ. During the debug session, I notice that the data ready status bits DRSTATUS<1:0> of the STATUSCOM register remain '1' after the first measurement has been read....
View ArticleMCP73832 Charging Behavior (shawnh)
I am using the Microchip MCP73832 Linear Charger to charge a single cell Li-ion battery. The input is USB to a Flyback converter (To isolate input power to system power). I am trying to charge at...
View ArticleMCP1662 problem with current above 100 mA (Luk3)
Hello! I have MCP1662 boost step-up converter in SOT-23 package. Typical application from datasheet. 4,7uH coil, 10uF ceramics input/output capacitors and white led string 170mA@9V (3 diodes in serial,...
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