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ADE7758 Production
The ADE7758 is a high accuracy, 3-phase electrical energy measurement IC with a serial interface and two pulse outputs. The ADE7758 incorporates second...
Datasheet
ADE7758 on Analog.com

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HOW TO READ AND CALIBRATE VOLTAGE, CURRENT, POWER, ENERGY , FREQUENCY FOR ADE7758 USING ARDUINO



		

			

									Anonymous
							

			
				
									Anonymous
											
			
			
				
    
			
			
			    	
			                    
                
				                on Apr 17, 2019 
				
			
			
		
    

				
		
    
		    		    
		    
		    	
			
    I STARTED A PROJECT ON ENERGY METER USING ADE7758 WITH ARDUINO MEGA. I HAVE BEEN ABLE TO ESTABLISH SPI COMMUNICATION  BEWTEEN ARDUINO AND ADE7758 AS I WAS ABLE TO READ SOME DEFAULT VALUE 0X1C FROM  CompMode AND WAS ABLE TO WRITE AND READ BACK FROM SOME REGISTER  LIKE LcycMode AND MASK REGISTER.
    

    I TRY TO READ VOLTAGE FROM PHASE A BY FOLLOW THE PROCEDURE IN THE DATASHEET PAGE 55. BUT I WAS GET BACK NEGATIVE VALUES..
    

    I JUST INPUT AN AC TO PHASE CHANNEL WITHOUT CURRENT SENSOR YET. BUT I THINK I SHOULD BE ABLE TO READ THE VOLATGE..
    

     I AM USING  A LIBRARY FOUND AS 
    

    

    https://github.com/engkan2kit/ADE7758 WITH SOME MODIFICATION.
    

    PLEASE KINDLY HELP OUT 
    

    THANKS
    

    
								
    

				
				
		
    
			
						
									
									
						
						
			
			
			
			
		
    

        
        

					
    
			
    


    


	















    
	
    
	
    
					



			


				
	









	
      
	

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      •  Analog Employees  
      
            
			                            
                        
                on Apr 25, 2019 5:15 PM
            
            
					
      
	
      

		
		
      
					
      Hi there,
      

      

      Page 55 of the datasheet is elaborating about the RMS calibration. Are you trying to read VRMS or the Waveform values?
      

      If you are reading VRMS, you may try to increase the number of N samples but there is no issue on havinf VRMS negative during calibration.
      

      However if you try to read waveform, can you check the value oof the WAVSEL bit and the WAVMODE register?
      

      I look forward to your reply.
      

      

      Best regards,
      

      Nanda
      
			
      

		
		
		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
						
						
						
				
				
		
		
      
			
		
      
	
      

      

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