Power Converters - Revision history

Joosteto: /* Inductive Heating Power Transfer */

2020-09-22T08:41:38Z

Inductive Heating Power Transfer

2020-09-20T19:06:57Z

Lattice

2020-09-20T08:14:42Z

2020-09-18T14:04:01Z

2020-09-18T11:48:44Z

2020-09-17T15:53:59Z

Fraction Power Loss

2020-09-17T15:49:09Z

Fraction Power Loss

2020-09-17T15:34:26Z

Fraction Power Loss

2020-09-17T15:33:39Z

Fraction Power Loss

2020-09-17T15:32:24Z

Fraction Power Loss

@@ Line 41: / Line 41: @@
 =Other Components=
 * -5V voltage regulator: [http://www.onsemi.com/pub_link/Collateral/MC7900-D.PDFMC7905CD2TG], [http://www.digikey.nl/product-detail/en/MC7905CD2TG/MC7905CD2TGOS-ND/1481515 digi-key], EUR 0.76, D2PAK
 =Misc=

@@ Line 76: / Line 76: @@
 [http://www.latticesemi.com/~/media/LatticeSemi/Documents/Handbooks/iCE40FamilyHandbook.pdf handbook],
 [http://www.latticesemi.com/~/media/LatticeSemi/Documents/DataSheets/iCE/iCE40LPHXFamilyDataSheet.pdf iCE40 LP/HX Family Datasheet]
 * Add Lattice FPGA, for example  ICE40LP384-SG32  [http://www.digikey.nl/product-detail/en/ICE40LP384-SG32/220-2646-ND/3974680 digikey] (heeft geen PLL!)
 * ICE40HX1K-VQ144 does have PLL  (?) (HX variants seem to be the only ones with pins & PLL)

@@ Line 18: / Line 18: @@
 =Main MOSFETs=
 P channel
 * [http://www.fairchildsemi.com/datasheets/FD/FDS9953A.pdf FDS9953A], [http://www.digikey.com/product-detail/en/FDS9953A/FDS9953ACT-ND/3042584 digi-key FDS9953ACT-ND], max 2.9 A cont,  typ 2.5/max 3.4 nC, <23 ns on/off time ([https://www.fairchildsemi.com/package-drawings/M0/M08A.pdf fairchild package drawing])

@@ Line 66: / Line 66: @@
 * Layouts: [http://www.onsemi.com/pub_link/Collateral/SOLDERRM-D.PDF Solderrm-d]
 ==Lattice==
 * Add Lattice FPGA, for example  ICE40LP384-SG32  [http://www.digikey.nl/product-detail/en/ICE40LP384-SG32/220-2646-ND/3974680 digikey] (heeft geen PLL!)
 * ICE40HX1K-VQ144 does have PLL  (?) (HX variants seem to be the only ones with pins & PLL)

@@ Line 6: / Line 6: @@
 * Max switching power: <math display="inline">P_\text{total} = \frac{1}{2} I_\text{switch}V_\text{IN}</math>
 * Due to <math>R_\text{DSON}</math> loss: <math> P_{\text{loss}R_\text{DSON}} = R_\text{DSON}I_\text{switch}^2</math>
-* Due to <math>C_\text{DS}</math> loss: <math>C_\text{DS}V_\text{IN}^2 f_\text{switch}</math>
+* Due to capacitance switching <math>C_\text{DS}</math> loss: <math>C_\text{DS}V_\text{IN}^2 f_\text{switch}</math>
 * Due to switch off time <math>t_f</math>(overestimation): <math>t_f f_\text{switch} I_\text{switch} V_\text{IN} </math>
 Total loss:

@@ Line 1: / Line 1: @@
 =Calculations=
 ==Fraction Power Loss==
-* Max switching power: <math display="inline">P_\text{total} = \frac{1}{2} I_\text{max}V_{DC}</math>
+<math>V_\text{IN}</math> Voltage on input (<math>V_\text{IN} < BV_\text{DS}</math>), and
 Total loss:
 <math>
-P_\text{loss total}/P_\text{total} = 2 R_{\text{DSON}}I_{DCmax} / V_\text{DC} +  C_\text{DS} f_\text{switch} \frac{V_\text{DC}}{I_\text{max}}
+P_\text{loss total}/P_\text{total} = 2 R_{\text{DSON}}\frac{I_\text{switch}}{V_\text{IN}} +  C_\text{DS} f_\text{switch} \frac{V_\text{IN}}{I_\text{switch}}
 </math>

@@ Line 8: / Line 8: @@
 <math>
-P_\text{loss total}/P_\text{total} = 2 R_{\text{DSON}}I_{DCmax} / V_\text{DC} +  C_\text{DS}V_\text{DC}/I_\text{max} f_\text{switch}
+P_\text{loss total}/P_\text{total} = 2 R_{\text{DSON}}I_{DCmax} / V_\text{DC} +  C_\text{DS} f_\text{switch} \frac{V_\text{DC}}{I_\text{max}}
 </math>