STMicroelectronics STEVAL-IHT008V1 User Manual Download Page 33

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UM2027

STEVAL-IHT008V1

silk-screen

DocID029048 Rev 1

33/37

Reference

Part / Value

C33

22 µF / 450 V

C34

2.2 µF / 63 V

C35

680 pF / 50 V

C36

100 nF / 50 V

C39

330 n / 50 V

BZX55C30

D2, D6, D7, D8, D9, D10

LED

BZX55C5V6

BZX55C15

D11, D15, D16

STPS1150

D12

1.5KE300A

D13

1N4007

D14

STTH1l06

D17

D1N4148

D18

bicolor LED

10 A fuse / 250 V

J1, J2, J3, J4, J5, J6, J20

2 way header_ 2.54 mm pitch

4 way header _ 5.08 pitch

J8, J11, J15, J18, J21, J12, J13, J17

2 way plug _ 5.08 pitch

J9, J10

3 way plug _ 5.08 pitch

J14, J19

4 way header _ 2.54 mm pitch

J16

8 way header _ 2.54 pitch

0.012 H / 10 A

1 mH

BUX87

STQ1NK80ZR-AP

2N2222

R1, R2, R3, R4, R5

220 R / 0.125 W

470 R / 0.125 W

R7, R10

250 k / 0.25 W

2.5 k / 5 W

R9, R11, R14, R16

50 k / 0.25 W

R12, R13

250 k / 0.125 W

R15

3.3 k / 0.25 W

R17, R19, R20, R21, R22

91 R / 0.5 W

R18

1.5 k / 0.125 W

R23, R24, R25, R26, R27

270 R / 0.125 W

R28

36 R / 2 W

R29

2.7 k / 0.125 W

R30, R31, R35, R36, R47, R48

1 M / 0.25 W

Summary of Contents for STEVAL-IHT008V1

Page 1: ...ng the startup phase This solution drastically reduces standby losses as the DC bus can be totally disconnected from the AC mains when it is not required The DC bus is easily turned off by turning off...

Page 2: ...10 2 5 Possible board adaptations 11 2 5 1 ACST use and MOV removal 11 2 5 2 EMI filter and DC bus capacitors change 11 2 5 3 Power factor circuit connection 12 2 5 4 Motor Inverter connection 12 2 5...

Page 3: ...diode bridge The AC switches T1 to T5 connected on AC side to control AC loads It should be noted that their drive reference A1 is also connected to the A1 terminal of T_ICL All A1 terminals are conn...

Page 4: ...oard is also particularly interesting for applications where AC loads have to be controlled such as for valves fans pumps heating resistors etc Such applications include wet appliances washing machine...

Page 5: ...lt two ACS108 8SN SOT 223 are used for T2 and T3 with a 5 5 mm copper area under the tab These devices can control an RMS load current up to 0 6 A This allows a 100 VA or 50 VA power load to be contro...

Page 6: ...uncontrolled inrush current due to EMI noise IEC 61000 4 5 2 kV criteria A IEC61000 4 11 criteria A for dips down to 100 of the line voltage during 1 cycle criteria B for interrupts up to 300 cycles...

Page 7: ...ays to limit inrush current and standby losses But thanks to the T_ICL Triac this function is already available by simply turning off this Triac Figure 5 Solution using relays to limit inrush current...

Page 8: ...required by European directive 2005 32 EC The losses measured for case 3 are mainly due to the resistor divider circuit R9 R11 R14 R16 used to balance the voltage across the 2 series capacitors C1 an...

Page 9: ...ant the rectifier to operate in a classic rectifier circuit do not plug the J7 jumper 2 Connect the AC load terminals if used to the associated headers e g for AC switch T1 refer to the N1 OUT1 label...

Page 10: ...label in Figure 23 STEVAL IHT008V1 silk screen Top side remains lit while the HVDC voltage is above 50 V so the SW2 switch can be released and a new startup can begin as soon as this LED turns off 2...

Page 11: ...are indeed pin to pin compatible The MOV used to protect the T1635T 8FP SIOV1 can be removed as the ACST1635T is an overvoltage protected device if the ACST1635 8FP is triggered in breakover mode the...

Page 12: ...defined in Section 1 5 Operating range and performances 2 5 4 Motor Inverter connection An inverter or any other DC DC power converter can be added after the PFC or directly behind the HVDC bus outpu...

Page 13: ...both inrush current limitation and power loss reduction Above and beyond the simple demonstration of the efficiency and the robustness of this solution by STMicroelectronics this front end circuit als...

Page 14: ...STEVAL IHT008V1 circuit schematics UM2027 14 37 DocID029048 Rev 1 4 STEVAL IHT008V1 circuit schematics Figure 8 STEVAL IHT008V1 power side and insulated control schematic...

Page 15: ...UM2027 STEVAL IHT008V1 circuit schematics DocID029048 Rev 1 15 37 Figure 9 STEVAL IHT008V1 control circuit schematic 1 of 3...

Page 16: ...STEVAL IHT008V1 circuit schematics UM2027 16 37 DocID029048 Rev 1 Figure 10 STEVAL IHT008V1 control circuit schematic 2 of 3 Figure 11 STEVAL IHT008V1 control circuit schematic 3 of 3...

Page 17: ...e level will be higher if it is not loaded and if the 15 V positive supply is loaded with its highest maximum current The current capabilities of the different outputs are for the whole operating rang...

Page 18: ...ent a current close to 20 mA is already sunk from the VCC_AC supply This is not the case for the VCC_INS output The maximum VCC_AC voltage is reached when the SMPS 15V_DC output is loaded to the maxim...

Page 19: ...variation for 230 V single phase grid according to IEC 61000 3 3 gives the associated maximum input current variation related to these different dmax levels To simplify the analysis it could be said...

Page 20: ...y charged while the line current is kept low In the STEVAL_IHT008V1 MCU firmware the Triac turn on delay reduction step is constant from one half cycle to the following one This step is called Step_Ph...

Page 21: ...he timer is launched both in count up and count down modes half of the desired value must be given in this parameter Next T_ICL turn on occurs 50 s sooner each time when the MAX_INRUSH CURRENT potenti...

Page 22: ...to below 17 4 A but the IEC 61000 3 3 limit actually applies to the RMS current As the T_ICL Triac conducts for a few hundred microseconds each half cycle the RMS current is much lower than the peak v...

Page 23: ...EVAL IHT008V1 board is programmed in order to comply with these different standard tests with the following strategy If the line voltage remains higher than 70 to the reference voltage measured at boa...

Page 24: ...omponent damage Figure 16 a Board operation during 1 cycle line interruption and Figure 17 b Board operation during 2 cycle line interruption illustrate board operation during a 1 cycle a or 2 cycle b...

Page 25: ...al voltage Number of cycles Required criteria by standard STEVAL IHT008V1 result 61000 2 1 environments 40 101 122 C B 70 251 302 C A Interruptions 0 2501 3002 C B EN55024 Information technology equip...

Page 26: ...to this offset the images of the VL VL_IM and VN VN_IM remain positive That means the ICL demo board only requires a single voltage supply and not a supplementary negative one to measure VAC Figure 1...

Page 27: ...voltage detection The TRIAC phase control needs to be synchronized with the AC line voltage The zero AC line voltage crossing detection uses the AC line voltage measurement Indeed the zero AC line vol...

Page 28: ...AC voltage monitoring and zero voltage synchronisation UM2027 28 37 DocID029048 Rev 1 Figure 19 Zero AC line voltage crossing detection...

Page 29: ...CTR must be chosen according to the equation below where IGT is the AC switch gate current and IO_MCU is the output current supplied by the MCU to control the optocoupler LED Given the AC switch gate...

Page 30: ...r filter VCC_AC the power supply to provide the gate current to the AC switch VCE SAT Opto the transistor collector emitter of the optocoupler IGT the TRIAC gate current NPN is the NPN transistor gain...

Page 31: ...UM2027 EN55014 test results DocID029048 Rev 1 31 37 10 EN55014 test results Figure 21 EMI noise test with 1000 W load Figure 22 EMI noise test without load...

Page 32: ...Table 5 Bill of material Reference Part Value C1 C9 1000 F 250 V C2 C4 C5 C8 2 2 nF 440 VAC C6 C7 56 nF 300 V C10 1 nF 50 V C11 C14 1 F 25 V C13 C15 C38 1 nF 50 V C16 C17 C18 C19 C20 C21 C24 C26 C27...

Page 33: ...der_ 2 54 mm pitch J7 4 way header _ 5 08 pitch J8 J11 J15 J18 J21 J12 J13 J17 2 way plug _ 5 08 pitch J9 J10 3 way plug _ 5 08 pitch J14 J19 4 way header _ 2 54 mm pitch J16 8 way header _ 2 54 pitch...

Page 34: ...R51 10 k 0 125 W R52 R53 47 R 1 W R54 36 k 0 125 W R55 10 k 0 125 W R56 20 k 0 125 W R57 22 k 0 125 W R58 150 R 0 125 W SIOV1 S07K300 300 VAC SIOV2 S14K300 300 VAC SW1 SW2 SW3 SW4 SW5 micro_switch SW6...

Page 35: ...put of T2 TP8 OUT3 A2 output of T3 TP9 OUT4 A2 output of T4 TP10 OUT5 A2 output of T5 TP11 HVDC 2 TP12 N Neutral before EMI filter TP13 N1 Neutral after EMI filter TP14 TP24 TP29 GND_DC TP15 G1 Gate s...

Page 36: ...Revision history UM2027 36 37 DocID029048 Rev 1 13 Revision history Table 7 Document revision history Date Revision Changes 09 Mar 2016 1 Initial release...

Page 37: ...sers are solely responsible for the choice selection and use of ST products and ST assumes no liability for application assistance or the design of Purchasers products No license express or implied to...

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